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<!-- Weave of 'Inferences' generated by Inweb -->
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< ul class = "crumbs" > < li > < a href = "../index.html" > Home< / a > < / li > < li > < a href = "../compiler.html" > Inform7 Modules< / a > < / li > < li > < a href = "index.html" > core< / a > < / li > < li > < a href = "index.html#16" > Chapter 16: Inference and Model< / a > < / li > < li > < b > Inferences< / b > < / li > < / ul > < / div >
< p class = "purpose" > To manage the individual pieces of information gathered, with varying degrees of certainty, from assertion sentences. This is mostly information about which objects have what properties.< / p >
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< ul class = "toc" > < li > < a href = "16-in.html#SP6" > § 6. Creation< / a > < / li > < li > < a href = "16-in.html#SP8" > § 8. Drawing inferences< / a > < / li > < li > < a href = "16-in.html#SP10" > § 10. Reading inference data< / a > < / li > < li > < a href = "16-in.html#SP12" > § 12. Looping over inferences< / a > < / li > < li > < a href = "16-in.html#SP13" > § 13. Finding property states< / a > < / li > < li > < a href = "16-in.html#SP14" > § 14. Indexing properties of a subject< / a > < / li > < li > < a href = "16-in.html#SP16" > § 16. Indexing properties of a specific subject< / a > < / li > < li > < a href = "16-in.html#SP17" > § 17. Comparing inferences< / a > < / li > < li > < a href = "16-in.html#SP19" > § 19. Joining an inference to what is known about an object< / a > < / li > < li > < a href = "16-in.html#SP20" > § 20. Logging inferences< / a > < / li > < / ul > < hr class = "tocbar" >
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< p class = "commentary firstcommentary" > < a id = "SP1" class = "paragraph-anchor" > < / a > < b > § 1. < / b > Inform reads a natural language description of a world. As it runs through, it
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collects together the assertions made in this description (such as "On the
table is a hat"), which are sometimes vague (where is this table?), sometimes
imply further facts (the hat cannot be a room, and the table must be a
supporter) and are sometimes contradictory (if, for instance, "The hat is in
the hatbox" has also been read).
< / p >
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< p class = "commentary" > As we have seen, such sentences are reduced to logical propositions, then
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asserted true, which results in a sequence of "inferences" being "drawn".
In this section, we see how inferences are stored and what drawing them
entails.
< / p >
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< p class = "commentary" > Each inference represents a single fact, associated with the "inference
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subject" it concerns. For instance, if property P of object X has the value V,
that makes an inference about X; but if the fact is that two objects, X and Y,
are related, then that will often be an inference about the relation rather than
about X or Y.
< / p >
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< p class = "commentary" > As this last example shows, up to two other inference subjects can be connected
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by the fact in question, besides the INFS to which it is attached.
< / p >
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< p class = "commentary firstcommentary" > < a id = "SP2" class = "paragraph-anchor" > < / a > < b > § 2. < / b > There are only two main types of inference, though plugins can and do define
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further types.
< / p >
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< pre class = "definitions code-font" > < span class = "definition-keyword" > define< / span > < span class = "constant-syntax" > ARBITRARY_RELATION_INF< / span > < span class = "plain-syntax" > < / span > < span class = "constant-syntax" > 1< / span > < span class = "plain-syntax" > < / span > < span class = "comment-syntax" > fact about an "arbitrary" relation< / span >
< span class = "definition-keyword" > define< / span > < span class = "constant-syntax" > PROPERTY_INF< / span > < span class = "plain-syntax" > < / span > < span class = "constant-syntax" > 2< / span > < span class = "plain-syntax" > < / span > < span class = "comment-syntax" > fact about a property< / span >
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< / pre >
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< p class = "commentary firstcommentary" > < a id = "SP3" class = "paragraph-anchor" > < / a > < b > § 3. < / b > Not all information is positive, or certain. The likelihood of something
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being true is measured on the five-point < span class = "extract" > < span class = "extract-syntax" > *_CE< / span > < / span > scale, though an inference
is never allowed to have < span class = "extract" > < span class = "extract-syntax" > UNKNOWN_CE< / span > < / span > status — that would tell us nothing.
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< / p >
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< p class = "commentary" > If \(C\) is a certainty level, then we call its absolute value the "absolute
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certainty". Thus there are only three absolute certainty levels: unknown,
likely and certain.
< / p >
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< p class = "commentary firstcommentary" > < a id = "SP4" class = "paragraph-anchor" > < / a > < b > § 4. < / b > When a given sentence is being parsed, there is a prevailing mood of certainty
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or uncertainty about the information implied by it, and this is stored in the
following global variable:
< / p >
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< pre class = "displayed-code all-displayed-code code-font" >
< span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > prevailing_mood< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > UNKNOWN_CE< / span > < span class = "plain-syntax" > ;< / span >
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< / pre >
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< p class = "commentary firstcommentary" > < a id = "SP5" class = "paragraph-anchor" > < / a > < b > § 5. < / b > This is the data structure used to store a single inference. Within the
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stock of facts known about a given INFS, the individual inferences are
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organised as linked lists; hence the < span class = "extract" > < span class = "extract-syntax" > next< / span > < / span > field.
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< / p >
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< pre class = "displayed-code all-displayed-code code-font" >
< span class = "reserved-syntax" > typedef< / span > < span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > struct< / span > < span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > inference< / span > < span class = "plain-syntax" > {< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > inference_type< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > see above< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > certainty< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > see above< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > struct< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > parse_node< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > inferred_from< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > from what sentence was this drawn?< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > added_in_construction< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > or was this drawn during the model completion stage?< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > inference_timestamp< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > struct< / span > < span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > inference_subject< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > infs_ref1< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > from 0 to 2 other INFSs are connected by this inference< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > struct< / span > < span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > inference_subject< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > infs_ref2< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > struct< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > parse_node< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > spec_ref1< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > used by dynamic relations between non-subjects< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > struct< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > parse_node< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > spec_ref2< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > struct< / span > < span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > property< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > inferred_property< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > property referred to, if any< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > struct< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > parse_node< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > inferred_property_value< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > and its value, if any< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > struct< / span > < span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > inference< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > next< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > next in list of inferences on same subject< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > CLASS_DEFINITION< / span >
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< span class = "plain-syntax" > } < / span > < span class = "reserved-syntax" > inference< / span > < span class = "plain-syntax" > ;< / span >
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< / pre >
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< ul class = "endnotetexts" > < li > The structure inference is accessed in 3/ptmn, 3/cs, 4/dlr, 4/pr, 4/tr, 4/nuor, 4/uor, 4/tr2, 4/dbtr, 4/rpr, 4/nar, 4/nlpr, 4/nrr, 4/npr, 4/nvr, 4/nar2, 5/rpt, 5/tc, 5/ass, 5/npa, 5/rk, 5/ass2, 5/imp, 5/tc2, 6/lp, 6/ins, 8/rs, 10/teav, 10/cap, 12/dtd, 12/cdp, 14/rv, 14/lv, 14/cn, 14/ds, 14/ds2, 15/ps, 15/cp, 16/is, 19/tb, 19/rsft, 20/eq, 21/rl, 21/rl2, 21/fao, 21/sv, 21/ac, 22/ph, 22/tp, 22/tp2, 23/ad, 24/lv, 24/sf, 25/in, 25/pi, 25/cii, 25/cp, 26/pc, 26/itc, 27/cm and here.< / li > < / ul >
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< p class = "commentary firstcommentary" > < a id = "SP6" class = "paragraph-anchor" > < / a > < b > § 6. Creation. < / b > The following routine coins a newly minted inference which is not yet attached
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to any subject: but it will not stay unattached for long. Note that if nothing
has been said about likelihood, the sentence is assumed to be factually certain.
< / p >
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< pre class = "displayed-code all-displayed-code code-font" >
< span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > inference_timer< / span > < span class = "plain-syntax" > = < / span > < span class = "constant-syntax" > 0< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "reserved-syntax" > inference< / span > < span class = "plain-syntax" > *< / span > < span class = "function-syntax" > World::Inferences::create_inference< / span > < button class = "popup" onclick = "togglePopup('usagePopup1')" > < span class = "comment-syntax" > ?< / span > < span class = "popuptext" id = "usagePopup1" > Usage of < span class = "code-font" > < span class = "function-syntax" > World::Inferences::create_inference< / span > < / span > :< br / > < a href = "16-in.html#SP7" > § 7< / a > , < a href = "16-in.html#SP9" > § 9< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > type< / span > < span class = "plain-syntax" > , < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > certitude< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "constant-syntax" > PROTECTED_MODEL_PROCEDURE< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > certitude< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > UNKNOWN_CE< / span > < span class = "plain-syntax" > ) < / span > < span class = "identifier-syntax" > certitude< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > CERTAIN_CE< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > inference< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > new_i< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > new_i< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > CREATE< / span > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > inference< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > new_i< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > inference_timestamp< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > inference_timer< / span > < span class = "plain-syntax" > ++;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > new_i< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > inference_type< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > type< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > new_i< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > certainty< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > certitude< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > new_i< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > infs_ref1< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ; < / span > < span class = "identifier-syntax" > new_i< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > infs_ref2< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > new_i< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > spec_ref1< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ; < / span > < span class = "identifier-syntax" > new_i< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > spec_ref2< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > new_i< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > inferred_property< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > new_i< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > inferred_property_value< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > new_i< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > inferred_from< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > current_sentence< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > new_i< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > added_in_construction< / span > < span class = "plain-syntax" > = < / span > < a href = "1-wtc.html#SP5" class = "function-link" > < span class = "function-syntax" > Task::is_during_stage< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "constant-syntax" > MODEL_COMPLETE_CSEQ< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > new_i< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > next< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > new_i< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
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< / pre >
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< p class = "commentary firstcommentary" > < a id = "SP7" class = "paragraph-anchor" > < / a > < b > § 7. < / b > Here are our two core inference types:
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< / p >
< pre class = "displayed-code all-displayed-code code-font" >
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< span class = "reserved-syntax" > inference< / span > < span class = "plain-syntax" > *< / span > < span class = "function-syntax" > World::Inferences::create_property_inference< / span > < button class = "popup" onclick = "togglePopup('usagePopup2')" > < span class = "comment-syntax" > ?< / span > < span class = "popuptext" id = "usagePopup2" > Usage of < span class = "code-font" > < span class = "function-syntax" > World::Inferences::create_property_inference< / span > < / span > :< br / > < a href = "16-in.html#SP8" > § 8< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > inference_subject< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > infs< / span > < span class = "plain-syntax" > ,< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > property< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > parse_node< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > val< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "constant-syntax" > PROTECTED_MODEL_PROCEDURE< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > inference< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > = < / span > < a href = "16-in.html#SP6" class = "function-link" > < span class = "function-syntax" > World::Inferences::create_inference< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "constant-syntax" > PROPERTY_INF< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > prevailing_mood< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > prevailing_mood< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > UNKNOWN_CE< / span > < span class = "plain-syntax" > )< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > certainty< / span > < span class = "plain-syntax" > = < / span > < a href = "16-is.html#SP15" class = "function-link" > < span class = "function-syntax" > InferenceSubjects::get_default_certainty< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > infs< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > inferred_property< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > inferred_property_value< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > val< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ) < / span > < span class = "identifier-syntax" > internal_error< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "null property inference"< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
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< span class = "reserved-syntax" > inference< / span > < span class = "plain-syntax" > *< / span > < span class = "function-syntax" > World::Inferences::create_relation_inference< / span > < button class = "popup" onclick = "togglePopup('usagePopup3')" > < span class = "comment-syntax" > ?< / span > < span class = "popuptext" id = "usagePopup3" > Usage of < span class = "code-font" > < span class = "function-syntax" > World::Inferences::create_relation_inference< / span > < / span > :< br / > < a href = "16-in.html#SP8" > § 8< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > inference_subject< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > infs0< / span > < span class = "plain-syntax" > , < / span > < span class = "reserved-syntax" > inference_subject< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > infs1< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "constant-syntax" > PROTECTED_MODEL_PROCEDURE< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > inference< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > = < / span > < a href = "16-in.html#SP6" class = "function-link" > < span class = "function-syntax" > World::Inferences::create_inference< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "constant-syntax" > ARBITRARY_RELATION_INF< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > prevailing_mood< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > infs_ref1< / span > < span class = "plain-syntax" > = < / span > < a href = "16-in.html#SP18" class = "function-link" > < span class = "function-syntax" > World::Inferences::divert_infs< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > infs0< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > infs_ref2< / span > < span class = "plain-syntax" > = < / span > < a href = "16-in.html#SP18" class = "function-link" > < span class = "function-syntax" > World::Inferences::divert_infs< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > infs1< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
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< span class = "reserved-syntax" > inference< / span > < span class = "plain-syntax" > *< / span > < span class = "function-syntax" > World::Inferences::create_relation_inference_spec< / span > < button class = "popup" onclick = "togglePopup('usagePopup4')" > < span class = "comment-syntax" > ?< / span > < span class = "popuptext" id = "usagePopup4" > Usage of < span class = "code-font" > < span class = "function-syntax" > World::Inferences::create_relation_inference_spec< / span > < / span > :< br / > < a href = "16-in.html#SP8" > § 8< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > parse_node< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > spec0< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > parse_node< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > spec1< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "constant-syntax" > PROTECTED_MODEL_PROCEDURE< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > inference< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > = < / span > < a href = "16-in.html#SP6" class = "function-link" > < span class = "function-syntax" > World::Inferences::create_inference< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "constant-syntax" > ARBITRARY_RELATION_INF< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > prevailing_mood< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > spec_ref1< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > spec0< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > spec_ref2< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > spec1< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > ((< / span > < span class = "identifier-syntax" > spec0< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ) || (< / span > < span class = "identifier-syntax" > spec1< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > )) < / span > < span class = "identifier-syntax" > internal_error< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "malformed specified relation"< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
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< / pre >
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< p class = "commentary firstcommentary" > < a id = "SP8" class = "paragraph-anchor" > < / a > < b > § 8. Drawing inferences. < / b > This is how the rest of Inform records fresh information about the world
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model. To "draw" an inference is to create it as a structure and then
"join" it to the list of facts already known about its subject. (This
might not actually accept it; it might be redundant, or contradictory.)
< / p >
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< p class = "commentary" > The two core inferences:
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< / p >
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< pre class = "displayed-code all-displayed-code code-font" >
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< span class = "reserved-syntax" > void< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > World::Inferences::draw_property< / span > < button class = "popup" onclick = "togglePopup('usagePopup5')" > < span class = "comment-syntax" > ?< / span > < span class = "popuptext" id = "usagePopup5" > Usage of < span class = "code-font" > < span class = "function-syntax" > World::Inferences::draw_property< / span > < / span > :< br / > Instances - < a href = "6-ins.html#SP35" > § 35< / a > < br / > Explicit Relations - < a href = "7-er.html#SP5" > § 5< / a > < br / > The Equality Relation Revisited - < a href = "12-terr.html#SP4" > § 4< / a > < br / > Either-Or Properties - < a href = "15-ep.html#SP16" > § 16< / a > < br / > Measurement Adjectives - < a href = "15-ma.html#SP11" > § 11< / a > < br / > Setting Property Relation - < a href = "15-spr2.html#SP10" > § 10< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > inference_subject< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > infs< / span > < span class = "plain-syntax" > ,< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > property< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > parse_node< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > val< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > inference< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > = < / span > < a href = "16-in.html#SP7" class = "function-link" > < span class = "function-syntax" > World::Inferences::create_property_inference< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > infs< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > val< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < a href = "16-in.html#SP19" class = "function-link" > < span class = "function-syntax" > World::Inferences::join_inference< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > infs< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > }< / span >
< span class = "reserved-syntax" > void< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > World::Inferences::draw_negated_property< / span > < button class = "popup" onclick = "togglePopup('usagePopup6')" > < span class = "comment-syntax" > ?< / span > < span class = "popuptext" id = "usagePopup6" > Usage of < span class = "code-font" > < span class = "function-syntax" > World::Inferences::draw_negated_property< / span > < / span > :< br / > Either-Or Properties - < a href = "15-ep.html#SP16" > § 16< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > inference_subject< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > infs< / span > < span class = "plain-syntax" > ,< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > property< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > parse_node< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > val< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > inference< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > = < / span > < a href = "16-in.html#SP7" class = "function-link" > < span class = "function-syntax" > World::Inferences::create_property_inference< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > infs< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > val< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > certainty< / span > < span class = "plain-syntax" > = -< / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > certainty< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < a href = "16-in.html#SP19" class = "function-link" > < span class = "function-syntax" > World::Inferences::join_inference< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > infs< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > }< / span >
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< span class = "reserved-syntax" > void< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > World::Inferences::draw_relation< / span > < button class = "popup" onclick = "togglePopup('usagePopup7')" > < span class = "comment-syntax" > ?< / span > < span class = "popuptext" id = "usagePopup7" > Usage of < span class = "code-font" > < span class = "function-syntax" > World::Inferences::draw_relation< / span > < / span > :< br / > Explicit Relations - < a href = "7-er.html#SP4" > § 4< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > binary_predicate< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > bp< / span > < span class = "plain-syntax" > ,< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > inference_subject< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > infs0< / span > < span class = "plain-syntax" > , < / span > < span class = "reserved-syntax" > inference_subject< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > infs1< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > inference< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > = < / span > < a href = "16-in.html#SP7" class = "function-link" > < span class = "function-syntax" > World::Inferences::create_relation_inference< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > infs0< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > infs1< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < a href = "16-in.html#SP19" class = "function-link" > < span class = "function-syntax" > World::Inferences::join_inference< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > BinaryPredicates::as_subject< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > bp< / span > < span class = "plain-syntax" > ));< / span >
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< span class = "plain-syntax" > }< / span >
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< span class = "reserved-syntax" > void< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > World::Inferences::draw_relation_spec< / span > < button class = "popup" onclick = "togglePopup('usagePopup8')" > < span class = "comment-syntax" > ?< / span > < span class = "popuptext" id = "usagePopup8" > Usage of < span class = "code-font" > < span class = "function-syntax" > World::Inferences::draw_relation_spec< / span > < / span > :< br / > Explicit Relations - < a href = "7-er.html#SP4" > § 4< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > binary_predicate< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > bp< / span > < span class = "plain-syntax" > ,< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > parse_node< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > spec0< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > parse_node< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > spec1< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > inference< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > = < / span > < a href = "16-in.html#SP7" class = "function-link" > < span class = "function-syntax" > World::Inferences::create_relation_inference_spec< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > spec0< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > spec1< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < a href = "16-in.html#SP19" class = "function-link" > < span class = "function-syntax" > World::Inferences::join_inference< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > BinaryPredicates::as_subject< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > bp< / span > < span class = "plain-syntax" > ));< / span >
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< span class = "plain-syntax" > }< / span >
< / pre >
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< p class = "commentary firstcommentary" > < a id = "SP9" class = "paragraph-anchor" > < / a > < b > § 9. < / b > And an all-purpose routine provided for plugins to draw customised
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inferences of their own:
< / p >
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< pre class = "displayed-code all-displayed-code code-font" >
< span class = "reserved-syntax" > void< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > World::Inferences::draw< / span > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > type< / span > < span class = "plain-syntax" > , < / span > < span class = "reserved-syntax" > inference_subject< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > about< / span > < span class = "plain-syntax" > ,< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > certitude< / span > < span class = "plain-syntax" > , < / span > < span class = "reserved-syntax" > inference_subject< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > infs0< / span > < span class = "plain-syntax" > , < / span > < span class = "reserved-syntax" > inference_subject< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > infs1< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > inference< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > = < / span > < a href = "16-in.html#SP6" class = "function-link" > < span class = "function-syntax" > World::Inferences::create_inference< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > type< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > certitude< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > infs_ref1< / span > < span class = "plain-syntax" > = < / span > < a href = "16-in.html#SP18" class = "function-link" > < span class = "function-syntax" > World::Inferences::divert_infs< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > infs0< / span > < span class = "plain-syntax" > ); < / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > infs_ref2< / span > < span class = "plain-syntax" > = < / span > < a href = "16-in.html#SP18" class = "function-link" > < span class = "function-syntax" > World::Inferences::divert_infs< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > infs1< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < a href = "16-in.html#SP19" class = "function-link" > < span class = "function-syntax" > World::Inferences::join_inference< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > about< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > }< / span >
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< / pre >
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< p class = "commentary firstcommentary" > < a id = "SP10" class = "paragraph-anchor" > < / a > < b > § 10. Reading inference data. < / b > Once drawn, inferences are read-only, and the following access routines
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allow them to be read.
< / p >
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< pre class = "displayed-code all-displayed-code code-font" >
< span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > World::Inferences::get_timestamp< / span > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > inference< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > inference_timestamp< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
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< span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > World::Inferences::get_inference_type< / span > < button class = "popup" onclick = "togglePopup('usagePopup9')" > < span class = "comment-syntax" > ?< / span > < span class = "popuptext" id = "usagePopup9" > Usage of < span class = "code-font" > < span class = "function-syntax" > World::Inferences::get_inference_type< / span > < / span > :< br / > Properties - < a href = "15-pr.html#SP25" > § 25< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > inference< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > inference_type< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
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< span class = "identifier-syntax" > parse_node< / span > < span class = "plain-syntax" > *< / span > < span class = "function-syntax" > World::Inferences::where_inferred< / span > < button class = "popup" onclick = "togglePopup('usagePopup10')" > < span class = "comment-syntax" > ?< / span > < span class = "popuptext" id = "usagePopup10" > Usage of < span class = "code-font" > < span class = "function-syntax" > World::Inferences::where_inferred< / span > < / span > :< br / > < a href = "16-in.html#SP13" > § 13< / a > < br / > Supplementary Issues - < a href = "2-si.html#SP9" > § 9< / a > < br / > Nonlocal Variables - < a href = "6-nv.html#SP16" > § 16< / a > < br / > Relations - < a href = "7-rlt.html#SP22" > § 22< / a > < br / > Properties - < a href = "15-pr.html#SP25" > § 25< / a > < br / > Indefinite Appearance - < a href = "15-ia.html#SP1_1" > § 1.1< / a > , < a href = "15-ia.html#SP2" > § 2< / a > < br / > Emit Property Values - < a href = "15-epv.html#SP1_1_3" > § 1.1.3< / a > < br / > Complete Model World - < a href = "16-cmw.html#SP1_2_2_1_1_1" > § 1.2.2.1.1.1< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > inference< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > inferred_from< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
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< span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > World::Inferences::get_certainty< / span > < button class = "popup" onclick = "togglePopup('usagePopup11')" > < span class = "comment-syntax" > ?< / span > < span class = "popuptext" id = "usagePopup11" > Usage of < span class = "code-font" > < span class = "function-syntax" > World::Inferences::get_certainty< / span > < / span > :< br / > < a href = "16-in.html#SP13" > § 13< / a > < br / > Implications - < a href = "5-imp.html#SP5" > § 5< / a > , < a href = "5-imp.html#SP5_1" > § 5.1< / a > < br / > Relations - < a href = "7-rlt.html#SP22" > § 22< / a > < br / > Properties - < a href = "15-pr.html#SP25" > § 25< / a > < br / > Complete Model World - < a href = "16-cmw.html#SP1_2_2" > § 1.2.2< / a > , < a href = "16-cmw.html#SP1_2_2_1_1" > § 1.2.2.1.1< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > inference< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > certainty< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
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< span class = "reserved-syntax" > void< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > World::Inferences::set_certainty< / span > < button class = "popup" onclick = "togglePopup('usagePopup12')" > < span class = "comment-syntax" > ?< / span > < span class = "popuptext" id = "usagePopup12" > Usage of < span class = "code-font" > < span class = "function-syntax" > World::Inferences::set_certainty< / span > < / span > :< br / > Complete Model World - < a href = "16-cmw.html#SP1_2_2_1_1" > § 1.2.2.1.1< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > inference< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > , < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > ce< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > certainty< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > ce< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
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< span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > World::Inferences::added_in_construction< / span > < button class = "popup" onclick = "togglePopup('usagePopup13')" > < span class = "comment-syntax" > ?< / span > < span class = "popuptext" id = "usagePopup13" > Usage of < span class = "code-font" > < span class = "function-syntax" > World::Inferences::added_in_construction< / span > < / span > :< br / > Complete Model World - < a href = "16-cmw.html#SP1_2_2" > § 1.2.2< / a > , < a href = "16-cmw.html#SP1_2_2_1" > § 1.2.2.1< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > inference< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > added_in_construction< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
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< span class = "reserved-syntax" > property< / span > < span class = "plain-syntax" > *< / span > < span class = "function-syntax" > World::Inferences::get_property< / span > < button class = "popup" onclick = "togglePopup('usagePopup14')" > < span class = "comment-syntax" > ?< / span > < span class = "popuptext" id = "usagePopup14" > Usage of < span class = "code-font" > < span class = "function-syntax" > World::Inferences::get_property< / span > < / span > :< br / > < a href = "16-in.html#SP13" > § 13< / a > , < a href = "16-in.html#SP14" > § 14< / a > < br / > Supplementary Issues - < a href = "2-si.html#SP9" > § 9< / a > < br / > Implications - < a href = "5-imp.html#SP5" > § 5< / a > < br / > Nonlocal Variables - < a href = "6-nv.html#SP16" > § 16< / a > , < a href = "6-nv.html#SP20" > § 20< / a > < br / > Relations - < a href = "7-rlt.html#SP22" > § 22< / a > < br / > Properties - < a href = "15-pr.html#SP25" > § 25< / a > < br / > Indefinite Appearance - < a href = "15-ia.html#SP1" > § 1< / a > , < a href = "15-ia.html#SP2" > § 2< / a > < br / > Emit Property Values - < a href = "15-epv.html#SP1_1_3" > § 1.1.3< / a > < br / > Complete Model World - < a href = "16-cmw.html#SP1_2_1" > § 1.2.1< / a > , < a href = "16-cmw.html#SP1_2_2" > § 1.2.2< / a > , < a href = "16-cmw.html#SP1_2_2_1" > § 1.2.2.1< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > inference< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > inferred_property< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
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< span class = "identifier-syntax" > parse_node< / span > < span class = "plain-syntax" > *< / span > < span class = "function-syntax" > World::Inferences::get_property_value< / span > < button class = "popup" onclick = "togglePopup('usagePopup15')" > < span class = "comment-syntax" > ?< / span > < span class = "popuptext" id = "usagePopup15" > Usage of < span class = "code-font" > < span class = "function-syntax" > World::Inferences::get_property_value< / span > < / span > :< br / > < a href = "16-in.html#SP13" > § 13< / a > , < a href = "16-in.html#SP14" > § 14< / a > < br / > Nonlocal Variables - < a href = "6-nv.html#SP16" > § 16< / a > < br / > Relations - < a href = "7-rlt.html#SP22" > § 22< / a > < br / > Properties - < a href = "15-pr.html#SP25" > § 25< / a > < br / > Indefinite Appearance - < a href = "15-ia.html#SP2" > § 2< / a > < br / > Complete Model World - < a href = "16-cmw.html#SP1_2_2_1_1" > § 1.2.2.1.1< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > inference< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > inferred_property_value< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
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< span class = "identifier-syntax" > parse_node< / span > < span class = "plain-syntax" > *< / span > < span class = "function-syntax" > World::Inferences::set_property_value_kind< / span > < button class = "popup" onclick = "togglePopup('usagePopup16')" > < span class = "comment-syntax" > ?< / span > < span class = "popuptext" id = "usagePopup16" > Usage of < span class = "code-font" > < span class = "function-syntax" > World::Inferences::set_property_value_kind< / span > < / span > :< br / > Nonlocal Variables - < a href = "6-nv.html#SP20" > § 20< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > inference< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > kind< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > K< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > Node::set_kind_of_value< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > inferred_property_value< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > K< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > inferred_property_value< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
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< / pre >
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< p class = "commentary firstcommentary" > < a id = "SP11" class = "paragraph-anchor" > < / a > < b > § 11. < / b > Core Inform deals only in INFSs, but plugins often use inferences concerned
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only with objects (e.g., for the map), so we also provide a convenient abbreviated
way to extract just reference 1 in object form.
< / p >
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< pre class = "displayed-code all-displayed-code code-font" >
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< span class = "reserved-syntax" > void< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > World::Inferences::get_references< / span > < button class = "popup" onclick = "togglePopup('usagePopup17')" > < span class = "comment-syntax" > ?< / span > < span class = "popuptext" id = "usagePopup17" > Usage of < span class = "code-font" > < span class = "function-syntax" > World::Inferences::get_references< / span > < / span > :< br / > Relations - < a href = "7-rlt.html#SP14_5_1" > § 14.5.1< / a > < br / > Knowledge about Relations - < a href = "16-kar.html#SP1" > § 1< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > inference< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > ,< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > inference_subject< / span > < span class = "plain-syntax" > **< / span > < span class = "identifier-syntax" > infs1< / span > < span class = "plain-syntax" > , < / span > < span class = "reserved-syntax" > inference_subject< / span > < span class = "plain-syntax" > **< / span > < span class = "identifier-syntax" > infs2< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > infs1< / span > < span class = "plain-syntax" > ) *< / span > < span class = "identifier-syntax" > infs1< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > infs_ref1< / span > < span class = "plain-syntax" > ; < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > infs2< / span > < span class = "plain-syntax" > ) *< / span > < span class = "identifier-syntax" > infs2< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > infs_ref2< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
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< span class = "reserved-syntax" > void< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > World::Inferences::get_references_spec< / span > < button class = "popup" onclick = "togglePopup('usagePopup18')" > < span class = "comment-syntax" > ?< / span > < span class = "popuptext" id = "usagePopup18" > Usage of < span class = "code-font" > < span class = "function-syntax" > World::Inferences::get_references_spec< / span > < / span > :< br / > Relations - < a href = "7-rlt.html#SP22" > § 22< / a > < br / > Knowledge about Relations - < a href = "16-kar.html#SP1" > § 1< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > inference< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > ,< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > parse_node< / span > < span class = "plain-syntax" > **< / span > < span class = "identifier-syntax" > spec1< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > parse_node< / span > < span class = "plain-syntax" > **< / span > < span class = "identifier-syntax" > spec2< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > spec1< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > spec_ref1< / span > < span class = "plain-syntax" > ; *< / span > < span class = "identifier-syntax" > spec2< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > spec_ref2< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
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< span class = "reserved-syntax" > instance< / span > < span class = "plain-syntax" > *< / span > < span class = "function-syntax" > World::Inferences::get_reference_as_object< / span > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > inference< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < a href = "16-is.html#SP18" class = "function-link" > < span class = "function-syntax" > InferenceSubjects::as_object_instance< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > infs_ref1< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > }< / span >
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< / pre >
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< p class = "commentary firstcommentary" > < a id = "SP12" class = "paragraph-anchor" > < / a > < b > § 12. Looping over inferences. < / b > The following macro prototypes show how to loop through all of the inferences
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known concerning a given inference subject, and of a given type. "Positive"
knowledge means that the inferences must have a certainty of likely or better.
< / p >
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< pre class = "definitions code-font" > < span class = "definition-keyword" > define< / span > < span class = "identifier-syntax" > POSITIVE_KNOWLEDGE_LOOP< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > inf< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > infs< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > type< / span > < span class = "plain-syntax" > )< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > for< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > inf< / span > < span class = "plain-syntax" > = (< / span > < span class = "identifier-syntax" > infs< / span > < span class = "plain-syntax" > )?(< / span > < a href = "16-is.html#SP15" class = "function-link" > < span class = "function-syntax" > InferenceSubjects::get_inferences< / span > < / a > < span class = "plain-syntax" > (< / span > < a href = "16-in.html#SP18" class = "function-link" > < span class = "function-syntax" > World::Inferences::divert_infs< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > infs< / span > < span class = "plain-syntax" > ))):< / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ; < / span > < span class = "identifier-syntax" > inf< / span > < span class = "plain-syntax" > ; < / span > < span class = "identifier-syntax" > inf< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > inf< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > next< / span > < span class = "plain-syntax" > )< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > ((< / span > < span class = "identifier-syntax" > inf< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > inference_type< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > type< / span > < span class = "plain-syntax" > ) & & (< / span > < span class = "identifier-syntax" > inf< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > certainty< / span > < span class = "plain-syntax" > > < / span > < span class = "constant-syntax" > 0< / span > < span class = "plain-syntax" > ))< / span >
< span class = "definition-keyword" > define< / span > < span class = "identifier-syntax" > KNOWLEDGE_LOOP< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > inf< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > infs< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > type< / span > < span class = "plain-syntax" > )< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > for< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > inf< / span > < span class = "plain-syntax" > = (< / span > < span class = "identifier-syntax" > infs< / span > < span class = "plain-syntax" > )?(< / span > < a href = "16-is.html#SP15" class = "function-link" > < span class = "function-syntax" > InferenceSubjects::get_inferences< / span > < / a > < span class = "plain-syntax" > (< / span > < a href = "16-in.html#SP18" class = "function-link" > < span class = "function-syntax" > World::Inferences::divert_infs< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > infs< / span > < span class = "plain-syntax" > ))):< / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ; < / span > < span class = "identifier-syntax" > inf< / span > < span class = "plain-syntax" > ; < / span > < span class = "identifier-syntax" > inf< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > inf< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > next< / span > < span class = "plain-syntax" > )< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > inf< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > inference_type< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > type< / span > < span class = "plain-syntax" > )< / span >
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< / pre >
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< p class = "commentary firstcommentary" > < a id = "SP13" class = "paragraph-anchor" > < / a > < b > § 13. Finding property states. < / b > < / p >
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< pre class = "displayed-code all-displayed-code code-font" >
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< span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > World::Inferences::get_EO_state< / span > < button class = "popup" onclick = "togglePopup('usagePopup19')" > < span class = "comment-syntax" > ?< / span > < span class = "popuptext" id = "usagePopup19" > Usage of < span class = "code-font" > < span class = "function-syntax" > World::Inferences::get_EO_state< / span > < / span > :< br / > < a href = "16-in.html#SP15" > § 15< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > inference_subject< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > infs< / span > < span class = "plain-syntax" > , < / span > < span class = "reserved-syntax" > property< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > ((< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ) || (< / span > < span class = "identifier-syntax" > infs< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > )) < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > UNKNOWN_CE< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > inference_subject< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > k< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > property< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > prnbar< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < a href = "15-pr.html#SP15" class = "function-link" > < span class = "function-syntax" > Properties::is_either_or< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > )) < / span > < span class = "identifier-syntax" > prnbar< / span > < span class = "plain-syntax" > = < / span > < a href = "15-ep.html#SP6" class = "function-link" > < span class = "function-syntax" > Properties::EitherOr::get_negation< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > for< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > k< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > infs< / span > < span class = "plain-syntax" > ; < / span > < span class = "identifier-syntax" > k< / span > < span class = "plain-syntax" > ; < / span > < span class = "identifier-syntax" > k< / span > < span class = "plain-syntax" > = < / span > < a href = "16-is.html#SP13" class = "function-link" > < span class = "function-syntax" > InferenceSubjects::narrowest_broader_subject< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > k< / span > < span class = "plain-syntax" > )) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > inference< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > inf< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > KNOWLEDGE_LOOP< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > inf< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > k< / span > < span class = "plain-syntax" > , < / span > < span class = "constant-syntax" > PROPERTY_INF< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > property< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > known< / span > < span class = "plain-syntax" > = < / span > < a href = "16-in.html#SP10" class = "function-link" > < span class = "function-syntax" > World::Inferences::get_property< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > inf< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > c< / span > < span class = "plain-syntax" > = < / span > < a href = "16-in.html#SP10" class = "function-link" > < span class = "function-syntax" > World::Inferences::get_certainty< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > inf< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > known< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > ((< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > known< / span > < span class = "plain-syntax" > ) & & (< / span > < span class = "identifier-syntax" > c< / span > < span class = "plain-syntax" > != < / span > < span class = "identifier-syntax" > UNKNOWN_CE< / span > < span class = "plain-syntax" > )) < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > c< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > ((< / span > < span class = "identifier-syntax" > prnbar< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > known< / span > < span class = "plain-syntax" > ) & & (< / span > < span class = "identifier-syntax" > c< / span > < span class = "plain-syntax" > != < / span > < span class = "identifier-syntax" > UNKNOWN_CE< / span > < span class = "plain-syntax" > )) < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > -< / span > < span class = "identifier-syntax" > c< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
< span class = "plain-syntax" > }< / span >
< span class = "plain-syntax" > }< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > UNKNOWN_CE< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
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< span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > World::Inferences::get_EO_state_without_inheritance< / span > < button class = "popup" onclick = "togglePopup('usagePopup20')" > < span class = "comment-syntax" > ?< / span > < span class = "popuptext" id = "usagePopup20" > Usage of < span class = "code-font" > < span class = "function-syntax" > World::Inferences::get_EO_state_without_inheritance< / span > < / span > :< br / > < a href = "16-in.html#SP16" > § 16< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > inference_subject< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > infs< / span > < span class = "plain-syntax" > , < / span > < span class = "reserved-syntax" > property< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > parse_node< / span > < span class = "plain-syntax" > **< / span > < span class = "identifier-syntax" > where< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > ((< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ) || (< / span > < span class = "identifier-syntax" > infs< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > )) < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > UNKNOWN_CE< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > property< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > prnbar< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < a href = "15-pr.html#SP15" class = "function-link" > < span class = "function-syntax" > Properties::is_either_or< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > )) < / span > < span class = "identifier-syntax" > prnbar< / span > < span class = "plain-syntax" > = < / span > < a href = "15-ep.html#SP6" class = "function-link" > < span class = "function-syntax" > Properties::EitherOr::get_negation< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > inference< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > inf< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > KNOWLEDGE_LOOP< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > inf< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > infs< / span > < span class = "plain-syntax" > , < / span > < span class = "constant-syntax" > PROPERTY_INF< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > property< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > known< / span > < span class = "plain-syntax" > = < / span > < a href = "16-in.html#SP10" class = "function-link" > < span class = "function-syntax" > World::Inferences::get_property< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > inf< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > c< / span > < span class = "plain-syntax" > = < / span > < a href = "16-in.html#SP10" class = "function-link" > < span class = "function-syntax" > World::Inferences::get_certainty< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > inf< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > known< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > ((< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > known< / span > < span class = "plain-syntax" > ) & & (< / span > < span class = "identifier-syntax" > c< / span > < span class = "plain-syntax" > != < / span > < span class = "identifier-syntax" > UNKNOWN_CE< / span > < span class = "plain-syntax" > )) {< / span >
2020-08-09 20:39:31 +03:00
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > where< / span > < span class = "plain-syntax" > ) *< / span > < span class = "identifier-syntax" > where< / span > < span class = "plain-syntax" > = < / span > < a href = "16-in.html#SP10" class = "function-link" > < span class = "function-syntax" > World::Inferences::where_inferred< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > inf< / span > < span class = "plain-syntax" > );< / span >
2020-05-03 03:01:21 +03:00
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > c< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > ((< / span > < span class = "identifier-syntax" > prnbar< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > known< / span > < span class = "plain-syntax" > ) & & (< / span > < span class = "identifier-syntax" > c< / span > < span class = "plain-syntax" > != < / span > < span class = "identifier-syntax" > UNKNOWN_CE< / span > < span class = "plain-syntax" > )) {< / span >
2020-08-09 20:39:31 +03:00
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > where< / span > < span class = "plain-syntax" > ) *< / span > < span class = "identifier-syntax" > where< / span > < span class = "plain-syntax" > = < / span > < a href = "16-in.html#SP10" class = "function-link" > < span class = "function-syntax" > World::Inferences::where_inferred< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > inf< / span > < span class = "plain-syntax" > );< / span >
2020-05-03 03:01:21 +03:00
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > -< / span > < span class = "identifier-syntax" > c< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
< span class = "plain-syntax" > }< / span >
< span class = "plain-syntax" > }< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > UNKNOWN_CE< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
2020-08-09 20:39:31 +03:00
< span class = "reserved-syntax" > void< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > World::Inferences::verify_prop_states< / span > < button class = "popup" onclick = "togglePopup('usagePopup21')" > < span class = "comment-syntax" > ?< / span > < span class = "popuptext" id = "usagePopup21" > Usage of < span class = "code-font" > < span class = "function-syntax" > World::Inferences::verify_prop_states< / span > < / span > :< br / > Inference Subjects - < a href = "16-is.html#SP29" > § 29< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > inference_subject< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > infs< / span > < span class = "plain-syntax" > ) {< / span >
2020-05-03 03:01:21 +03:00
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > inference< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > inf< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > POSITIVE_KNOWLEDGE_LOOP< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > inf< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > infs< / span > < span class = "plain-syntax" > , < / span > < span class = "constant-syntax" > PROPERTY_INF< / span > < span class = "plain-syntax" > ) {< / span >
2020-08-09 20:39:31 +03:00
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > property< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > = < / span > < a href = "16-in.html#SP10" class = "function-link" > < span class = "function-syntax" > World::Inferences::get_property< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > inf< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > parse_node< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > val< / span > < span class = "plain-syntax" > = < / span > < a href = "16-in.html#SP10" class = "function-link" > < span class = "function-syntax" > World::Inferences::get_property_value< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > inf< / span > < span class = "plain-syntax" > );< / span >
2020-05-03 03:01:21 +03:00
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > kind< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > PK< / span > < span class = "plain-syntax" > = < / span > < a href = "15-vp.html#SP5" class = "function-link" > < span class = "function-syntax" > Properties::Valued::kind< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > kind< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > VK< / span > < span class = "plain-syntax" > = < / span > < a href = "14-sp.html#SP1" class = "function-link" > < span class = "function-syntax" > Specifications::to_kind< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > val< / span > < span class = "plain-syntax" > );< / span >
2020-08-12 01:59:29 +03:00
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > Kinds::compatible< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > VK< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > PK< / span > < span class = "plain-syntax" > ) != < / span > < span class = "identifier-syntax" > ALWAYS_MATCH< / span > < span class = "plain-syntax" > ) {< / span >
2020-08-09 20:39:31 +03:00
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > LOG< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "Property value given as %u not %u\n"< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > VK< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > PK< / span > < span class = "plain-syntax" > );< / span >
2020-05-03 03:01:21 +03:00
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > current_sentence< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > inf< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > inferred_from< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > Problems::quote_source< / span > < span class = "plain-syntax" > (1, < / span > < span class = "identifier-syntax" > current_sentence< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < a href = "2-sq.html#SP2" class = "function-link" > < span class = "function-syntax" > Problems::quote_property< / span > < / a > < span class = "plain-syntax" > (2, < / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < a href = "2-sq.html#SP3" class = "function-link" > < span class = "function-syntax" > Problems::quote_kind< / span > < / a > < span class = "plain-syntax" > (3, < / span > < span class = "identifier-syntax" > VK< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < a href = "2-sq.html#SP3" class = "function-link" > < span class = "function-syntax" > Problems::quote_kind< / span > < / a > < span class = "plain-syntax" > (4, < / span > < span class = "identifier-syntax" > PK< / span > < span class = "plain-syntax" > );< / span >
2020-08-09 11:15:46 +03:00
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > StandardProblems::handmade_problem< / span > < span class = "plain-syntax" > (< / span > < a href = "1-wtc.html#SP6" class = "function-link" > < span class = "function-syntax" > Task::syntax_tree< / span > < / a > < span class = "plain-syntax" > (), < / span > < span class = "identifier-syntax" > _p_< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > PM_LateInferenceProblem< / span > < span class = "plain-syntax" > ));< / span >
2020-05-03 03:01:21 +03:00
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > Problems::issue_problem_segment< / span > < span class = "plain-syntax" > (< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "You wrote %1, but that tries to set the value of the '%2' "< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "property to %3 - which must be wrong because this property "< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "has to be %4."< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > Problems::issue_problem_end< / span > < span class = "plain-syntax" > ();< / span >
< span class = "plain-syntax" > }< / span >
< span class = "plain-syntax" > }< / span >
< span class = "plain-syntax" > }< / span >
2020-07-29 20:43:44 +03:00
< span class = "identifier-syntax" > parse_node< / span > < span class = "plain-syntax" > *< / span > < span class = "function-syntax" > World::Inferences::get_prop_state< / span > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > inference_subject< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > infs< / span > < span class = "plain-syntax" > , < / span > < span class = "reserved-syntax" > property< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > ) {< / span >
2020-05-03 03:01:21 +03:00
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > ((< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ) || (< / span > < span class = "identifier-syntax" > infs< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > )) < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > inference_subject< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > k< / span > < span class = "plain-syntax" > ;< / span >
2020-08-09 20:39:31 +03:00
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > for< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > k< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > infs< / span > < span class = "plain-syntax" > ; < / span > < span class = "identifier-syntax" > k< / span > < span class = "plain-syntax" > ; < / span > < span class = "identifier-syntax" > k< / span > < span class = "plain-syntax" > = < / span > < a href = "16-is.html#SP13" class = "function-link" > < span class = "function-syntax" > InferenceSubjects::narrowest_broader_subject< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > k< / span > < span class = "plain-syntax" > )) {< / span >
2020-05-03 03:01:21 +03:00
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > inference< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > inf< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > POSITIVE_KNOWLEDGE_LOOP< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > inf< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > k< / span > < span class = "plain-syntax" > , < / span > < span class = "constant-syntax" > PROPERTY_INF< / span > < span class = "plain-syntax" > ) {< / span >
2020-08-09 20:39:31 +03:00
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > property< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > known< / span > < span class = "plain-syntax" > = < / span > < a href = "16-in.html#SP10" class = "function-link" > < span class = "function-syntax" > World::Inferences::get_property< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > inf< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > known< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > ) < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < a href = "16-in.html#SP10" class = "function-link" > < span class = "function-syntax" > World::Inferences::get_property_value< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > inf< / span > < span class = "plain-syntax" > );< / span >
2020-05-03 03:01:21 +03:00
< span class = "plain-syntax" > }< / span >
< span class = "plain-syntax" > }< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
< span class = "identifier-syntax" > parse_node< / span > < span class = "plain-syntax" > *< / span > < span class = "function-syntax" > World::Inferences::get_prop_state_at< / span > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > inference_subject< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > infs< / span > < span class = "plain-syntax" > , < / span > < span class = "reserved-syntax" > property< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > ,< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > parse_node< / span > < span class = "plain-syntax" > **< / span > < span class = "identifier-syntax" > where< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > ((< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ) || (< / span > < span class = "identifier-syntax" > infs< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > )) < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > inference_subject< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > k< / span > < span class = "plain-syntax" > ;< / span >
2020-08-09 20:39:31 +03:00
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > for< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > k< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > infs< / span > < span class = "plain-syntax" > ; < / span > < span class = "identifier-syntax" > k< / span > < span class = "plain-syntax" > ; < / span > < span class = "identifier-syntax" > k< / span > < span class = "plain-syntax" > = < / span > < a href = "16-is.html#SP13" class = "function-link" > < span class = "function-syntax" > InferenceSubjects::narrowest_broader_subject< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > k< / span > < span class = "plain-syntax" > )) {< / span >
2020-05-03 03:01:21 +03:00
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > inference< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > inf< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > POSITIVE_KNOWLEDGE_LOOP< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > inf< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > k< / span > < span class = "plain-syntax" > , < / span > < span class = "constant-syntax" > PROPERTY_INF< / span > < span class = "plain-syntax" > ) {< / span >
2020-08-09 20:39:31 +03:00
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > property< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > known< / span > < span class = "plain-syntax" > = < / span > < a href = "16-in.html#SP10" class = "function-link" > < span class = "function-syntax" > World::Inferences::get_property< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > inf< / span > < span class = "plain-syntax" > );< / span >
2020-05-03 03:01:21 +03:00
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > known< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > ) {< / span >
2020-08-09 20:39:31 +03:00
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > where< / span > < span class = "plain-syntax" > ) *< / span > < span class = "identifier-syntax" > where< / span > < span class = "plain-syntax" > = < / span > < a href = "16-in.html#SP10" class = "function-link" > < span class = "function-syntax" > World::Inferences::where_inferred< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > inf< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < a href = "16-in.html#SP10" class = "function-link" > < span class = "function-syntax" > World::Inferences::get_property_value< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > inf< / span > < span class = "plain-syntax" > );< / span >
2020-05-03 03:01:21 +03:00
< span class = "plain-syntax" > }< / span >
< span class = "plain-syntax" > }< / span >
< span class = "plain-syntax" > }< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
2020-08-09 20:39:31 +03:00
< span class = "identifier-syntax" > parse_node< / span > < span class = "plain-syntax" > *< / span > < span class = "function-syntax" > World::Inferences::get_prop_state_without_inheritance< / span > < button class = "popup" onclick = "togglePopup('usagePopup22')" > < span class = "comment-syntax" > ?< / span > < span class = "popuptext" id = "usagePopup22" > Usage of < span class = "code-font" > < span class = "function-syntax" > World::Inferences::get_prop_state_without_inheritance< / span > < / span > :< br / > < a href = "16-in.html#SP16" > § 16< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > inference_subject< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > infs< / span > < span class = "plain-syntax" > ,< / span >
2020-05-03 03:01:21 +03:00
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > property< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > parse_node< / span > < span class = "plain-syntax" > **< / span > < span class = "identifier-syntax" > where< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > ((< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ) || (< / span > < span class = "identifier-syntax" > infs< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > )) < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > inference< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > inf< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > POSITIVE_KNOWLEDGE_LOOP< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > inf< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > infs< / span > < span class = "plain-syntax" > , < / span > < span class = "constant-syntax" > PROPERTY_INF< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > property< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > known< / span > < span class = "plain-syntax" > = < / span > < a href = "16-in.html#SP10" class = "function-link" > < span class = "function-syntax" > World::Inferences::get_property< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > inf< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > known< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > where< / span > < span class = "plain-syntax" > ) *< / span > < span class = "identifier-syntax" > where< / span > < span class = "plain-syntax" > = < / span > < a href = "16-in.html#SP10" class = "function-link" > < span class = "function-syntax" > World::Inferences::where_inferred< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > inf< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < a href = "16-in.html#SP10" class = "function-link" > < span class = "function-syntax" > World::Inferences::get_property_value< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > inf< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > }< / span >
< span class = "plain-syntax" > }< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
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< / pre >
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< p class = "commentary firstcommentary" > < a id = "SP14" class = "paragraph-anchor" > < / a > < b > § 14. Indexing properties of a subject. < / b > This is where the detailed description of a given kind — what properties it
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has, and so on — is generated.
< / p >
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< pre class = "displayed-code all-displayed-code code-font" >
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< span class = "reserved-syntax" > void< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > World::Inferences::index< / span > < button class = "popup" onclick = "togglePopup('usagePopup23')" > < span class = "comment-syntax" > ?< / span > < span class = "popuptext" id = "usagePopup23" > Usage of < span class = "code-font" > < span class = "function-syntax" > World::Inferences::index< / span > < / span > :< br / > Index Physical World - < a href = "6-ipw.html#SP3_7" > § 3.7< / a > < br / > Kinds Index - < a href = "13-ki.html#SP1_11" > § 1.11< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > OUTPUT_STREAM< / span > < span class = "plain-syntax" > , < / span > < span class = "reserved-syntax" > inference_subject< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > infs< / span > < span class = "plain-syntax" > , < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > brief< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > inference< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > inf< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > KNOWLEDGE_LOOP< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > inf< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > infs< / span > < span class = "plain-syntax" > , < / span > < span class = "constant-syntax" > PROPERTY_INF< / span > < span class = "plain-syntax" > )< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < a href = "16-in.html#SP10" class = "function-link" > < span class = "function-syntax" > World::Inferences::get_property< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > inf< / span > < span class = "plain-syntax" > ) == < / span > < span class = "identifier-syntax" > P_specification< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > parse_node< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > spec< / span > < span class = "plain-syntax" > = < / span > < a href = "16-in.html#SP10" class = "function-link" > < span class = "function-syntax" > World::Inferences::get_property_value< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > inf< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > Index::dequote< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > OUT< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > Lexer::word_raw_text< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > Wordings::first_wn< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > Node::get_text< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > spec< / span > < span class = "plain-syntax" > ))));< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > HTML_TAG< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "br"< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > }< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > property< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > LOOP_OVER< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > , < / span > < span class = "reserved-syntax" > property< / span > < span class = "plain-syntax" > ) < / span > < a href = "15-pr.html#SP18" class = "function-link" > < span class = "function-syntax" > Properties::set_indexed_already_flag< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > FALSE< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > c< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > for< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > c< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > CERTAIN_CE< / span > < span class = "plain-syntax" > ; < / span > < span class = "identifier-syntax" > c< / span > < span class = "plain-syntax" > > = < / span > < span class = "identifier-syntax" > IMPOSSIBLE_CE< / span > < span class = "plain-syntax" > ; < / span > < span class = "identifier-syntax" > c< / span > < span class = "plain-syntax" > --) {< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > char< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > cert< / span > < span class = "plain-syntax" > = < / span > < span class = "string-syntax" > "Text only put here to stop gcc -O2 wrongly reporting an error"< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > c< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > UNKNOWN_CE< / span > < span class = "plain-syntax" > ) < / span > < span class = "reserved-syntax" > continue< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > switch< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > c< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > case< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > CERTAIN_CE:< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > cert< / span > < span class = "plain-syntax" > = < / span > < span class = "string-syntax" > "Always"< / span > < span class = "plain-syntax" > ; < / span > < span class = "reserved-syntax" > break< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > case< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > LIKELY_CE:< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > cert< / span > < span class = "plain-syntax" > = < / span > < span class = "string-syntax" > "Usually"< / span > < span class = "plain-syntax" > ; < / span > < span class = "reserved-syntax" > break< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > case< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > UNLIKELY_CE:< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > cert< / span > < span class = "plain-syntax" > = < / span > < span class = "string-syntax" > "Usually not"< / span > < span class = "plain-syntax" > ; < / span > < span class = "reserved-syntax" > break< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > case< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > IMPOSSIBLE_CE:< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > cert< / span > < span class = "plain-syntax" > = < / span > < span class = "string-syntax" > "Never"< / span > < span class = "plain-syntax" > ; < / span > < span class = "reserved-syntax" > break< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > case< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > INITIALLY_CE:< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > cert< / span > < span class = "plain-syntax" > = < / span > < span class = "string-syntax" > "Initially"< / span > < span class = "plain-syntax" > ; < / span > < span class = "reserved-syntax" > break< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
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< span class = "plain-syntax" > < / span > < a href = "16-in.html#SP15" class = "function-link" > < span class = "function-syntax" > World::Inferences::index_provided< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > OUT< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > infs< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > TRUE< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > c< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > cert< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > brief< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > }< / span >
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< span class = "plain-syntax" > < / span > < a href = "16-in.html#SP15" class = "function-link" > < span class = "function-syntax" > World::Inferences::index_provided< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > OUT< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > infs< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > FALSE< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > LIKELY_CE< / span > < span class = "plain-syntax" > , < / span > < span class = "string-syntax" > "Can have"< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > brief< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > }< / span >
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< / pre >
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< p class = "commentary firstcommentary" > < a id = "SP15" class = "paragraph-anchor" > < / a > < b > § 15. < / b > The following lists off the properties of the kind, with the given
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state of being boolean, and the given certainty levels:
< / p >
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< pre class = "displayed-code all-displayed-code code-font" >
< span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > World::Inferences::has_or_can_have< / span > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > inference_subject< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > infs< / span > < span class = "plain-syntax" > , < / span > < span class = "reserved-syntax" > property< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < a href = "15-pr.html#SP15" class = "function-link" > < span class = "function-syntax" > Properties::is_either_or< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > )) {< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > has< / span > < span class = "plain-syntax" > = < / span > < a href = "16-in.html#SP13" class = "function-link" > < span class = "function-syntax" > World::Inferences::get_EO_state< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > infs< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > ((< / span > < span class = "identifier-syntax" > has< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > UNKNOWN_CE< / span > < span class = "plain-syntax" > ) & & (< / span > < a href = "16-pp.html#SP7" class = "function-link" > < span class = "function-syntax" > World::Permissions::find< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > infs< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > TRUE< / span > < span class = "plain-syntax" > ))) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < a href = "15-ep.html#SP7" class = "function-link" > < span class = "function-syntax" > Properties::EitherOr::stored_in_negation< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > ))< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > LIKELY_CE< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > else< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > UNLIKELY_CE< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > has< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < a href = "16-pp.html#SP7" class = "function-link" > < span class = "function-syntax" > World::Permissions::find< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > infs< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > TRUE< / span > < span class = "plain-syntax" > )) < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > LIKELY_CE< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > UNKNOWN_CE< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
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< span class = "reserved-syntax" > void< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > World::Inferences::index_provided< / span > < button class = "popup" onclick = "togglePopup('usagePopup24')" > < span class = "comment-syntax" > ?< / span > < span class = "popuptext" id = "usagePopup24" > Usage of < span class = "code-font" > < span class = "function-syntax" > World::Inferences::index_provided< / span > < / span > :< br / > < a href = "16-in.html#SP14" > § 14< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > OUTPUT_STREAM< / span > < span class = "plain-syntax" > , < / span > < span class = "reserved-syntax" > inference_subject< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > infs< / span > < span class = "plain-syntax" > , < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > bool< / span > < span class = "plain-syntax" > , < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > c< / span > < span class = "plain-syntax" > , < / span > < span class = "reserved-syntax" > char< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > cert< / span > < span class = "plain-syntax" > , < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > brief< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > f< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > TRUE< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > property< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > LOOP_OVER< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > , < / span > < span class = "reserved-syntax" > property< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < a href = "15-pr.html#SP17" class = "function-link" > < span class = "function-syntax" > Properties::is_shown_in_index< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > ) == < / span > < span class = "identifier-syntax" > FALSE< / span > < span class = "plain-syntax" > ) < / span > < span class = "reserved-syntax" > continue< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < a href = "15-pr.html#SP18" class = "function-link" > < span class = "function-syntax" > Properties::get_indexed_already_flag< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > )) < / span > < span class = "reserved-syntax" > continue< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < a href = "15-pr.html#SP15" class = "function-link" > < span class = "function-syntax" > Properties::is_either_or< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > ) != < / span > < span class = "identifier-syntax" > bool< / span > < span class = "plain-syntax" > ) < / span > < span class = "reserved-syntax" > continue< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > state< / span > < span class = "plain-syntax" > = < / span > < a href = "16-in.html#SP15" class = "function-link" > < span class = "function-syntax" > World::Inferences::has_or_can_have< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > infs< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > state< / span > < span class = "plain-syntax" > != < / span > < span class = "identifier-syntax" > c< / span > < span class = "plain-syntax" > ) < / span > < span class = "reserved-syntax" > continue< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > inherited_state< / span > < span class = "plain-syntax" > = < / span > < a href = "16-in.html#SP15" class = "function-link" > < span class = "function-syntax" > World::Inferences::has_or_can_have< / span > < / a > < span class = "plain-syntax" > (< / span >
< span class = "plain-syntax" > < / span > < a href = "16-is.html#SP13" class = "function-link" > < span class = "function-syntax" > InferenceSubjects::narrowest_broader_subject< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > infs< / span > < span class = "plain-syntax" > ), < / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > ((< / span > < span class = "identifier-syntax" > state< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > inherited_state< / span > < span class = "plain-syntax" > ) & & (< / span > < span class = "identifier-syntax" > brief< / span > < span class = "plain-syntax" > )) < / span > < span class = "reserved-syntax" > continue< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > f< / span > < span class = "plain-syntax" > ) { < / span > < span class = "identifier-syntax" > WRITE< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "< i> %s< /i> "< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > cert< / span > < span class = "plain-syntax" > ); < / span > < span class = "identifier-syntax" > f< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > FALSE< / span > < span class = "plain-syntax" > ; }< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > else< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > WRITE< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > ", "< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > WRITE< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "%+W"< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > name< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < a href = "15-pr.html#SP18" class = "function-link" > < span class = "function-syntax" > Properties::set_indexed_already_flag< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > TRUE< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < a href = "15-pr.html#SP15" class = "function-link" > < span class = "function-syntax" > Properties::is_either_or< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > )) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > property< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > prnbar< / span > < span class = "plain-syntax" > = < / span > < a href = "15-ep.html#SP6" class = "function-link" > < span class = "function-syntax" > Properties::EitherOr::get_negation< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > prnbar< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > WRITE< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > " < i> not< /i> %+W"< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > prnbar< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > name< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < a href = "15-pr.html#SP18" class = "function-link" > < span class = "function-syntax" > Properties::set_indexed_already_flag< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > prnbar< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > TRUE< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > }< / span >
< span class = "plain-syntax" > } < / span > < span class = "reserved-syntax" > else< / span > < span class = "plain-syntax" > {< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > kind< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > K< / span > < span class = "plain-syntax" > = < / span > < a href = "15-vp.html#SP5" class = "function-link" > < span class = "function-syntax" > Properties::Valued::kind< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > K< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > WRITE< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > " (< i> "< / span > < span class = "plain-syntax" > ); < / span > < span class = "identifier-syntax" > Kinds::Textual::write< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > OUT< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > K< / span > < span class = "plain-syntax" > ); < / span > < span class = "identifier-syntax" > WRITE< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "< /i> )"< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > }< / span >
< span class = "plain-syntax" > }< / span >
< span class = "plain-syntax" > }< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > f< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > FALSE< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > WRITE< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "."< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > HTML_TAG< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "br"< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > }< / span >
< span class = "plain-syntax" > }< / span >
2019-03-17 14:40:57 +02:00
< / pre >
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< p class = "commentary firstcommentary" > < a id = "SP16" class = "paragraph-anchor" > < / a > < b > § 16. Indexing properties of a specific subject. < / b > This only tells about specific property settings for a given instance.
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< / p >
< pre class = "displayed-code all-displayed-code code-font" >
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< span class = "reserved-syntax" > void< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > World::Inferences::index_specific< / span > < button class = "popup" onclick = "togglePopup('usagePopup25')" > < span class = "comment-syntax" > ?< / span > < span class = "popuptext" id = "usagePopup25" > Usage of < span class = "code-font" > < span class = "function-syntax" > World::Inferences::index_specific< / span > < / span > :< br / > Index Physical World - < a href = "6-ipw.html#SP3_9" > § 3.9< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > OUTPUT_STREAM< / span > < span class = "plain-syntax" > , < / span > < span class = "reserved-syntax" > inference_subject< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > infs< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > property< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > ; < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > k< / span > < span class = "plain-syntax" > = < / span > < span class = "constant-syntax" > 0< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > LOOP_OVER< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > , < / span > < span class = "reserved-syntax" > property< / span > < span class = "plain-syntax" > )< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < a href = "15-pr.html#SP17" class = "function-link" > < span class = "function-syntax" > Properties::is_shown_in_index< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > ))< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < a href = "15-pr.html#SP15" class = "function-link" > < span class = "function-syntax" > Properties::is_either_or< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > )) {< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < a href = "16-pp.html#SP7" class = "function-link" > < span class = "function-syntax" > World::Permissions::find< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > infs< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > TRUE< / span > < span class = "plain-syntax" > )) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > parse_node< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > P< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > S< / span > < span class = "plain-syntax" > = < / span > < a href = "16-in.html#SP13" class = "function-link" > < span class = "function-syntax" > World::Inferences::get_EO_state_without_inheritance< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > infs< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > , & < / span > < span class = "identifier-syntax" > P< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > property< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > prnbar< / span > < span class = "plain-syntax" > = < / span > < a href = "15-ep.html#SP6" class = "function-link" > < span class = "function-syntax" > Properties::EitherOr::get_negation< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > ((< / span > < span class = "identifier-syntax" > prnbar< / span > < span class = "plain-syntax" > ) & & (< / span > < span class = "identifier-syntax" > S< / span > < span class = "plain-syntax" > < < / span > < span class = "constant-syntax" > 0< / span > < span class = "plain-syntax" > )) < / span > < span class = "reserved-syntax" > continue< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > S< / span > < span class = "plain-syntax" > != < / span > < span class = "identifier-syntax" > UNKNOWN_CE< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > k< / span > < span class = "plain-syntax" > ++;< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > k< / span > < span class = "plain-syntax" > == < / span > < span class = "constant-syntax" > 1< / span > < span class = "plain-syntax" > ) < / span > < span class = "identifier-syntax" > HTML::open_indented_p< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > OUT< / span > < span class = "plain-syntax" > , < / span > < span class = "constant-syntax" > 1< / span > < span class = "plain-syntax" > , < / span > < span class = "string-syntax" > "hanging"< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > else< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > WRITE< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "; "< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > S< / span > < span class = "plain-syntax" > < < / span > < span class = "constant-syntax" > 0< / span > < span class = "plain-syntax" > ) < / span > < span class = "identifier-syntax" > WRITE< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "not "< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > WRITE< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "%+W"< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > name< / span > < span class = "plain-syntax" > );< / span >
2020-05-11 17:21:29 +03:00
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > P< / span > < span class = "plain-syntax" > ) < / span > < span class = "identifier-syntax" > Index::link< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > OUT< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > Wordings::first_wn< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > Node::get_text< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > P< / span > < span class = "plain-syntax" > )));< / span >
2020-05-03 03:01:21 +03:00
< span class = "plain-syntax" > }< / span >
< span class = "plain-syntax" > }< / span >
< span class = "plain-syntax" > }< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > k< / span > < span class = "plain-syntax" > > < / span > < span class = "constant-syntax" > 0< / span > < span class = "plain-syntax" > ) < / span > < span class = "identifier-syntax" > HTML_CLOSE< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "p"< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > LOOP_OVER< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > , < / span > < span class = "reserved-syntax" > property< / span > < span class = "plain-syntax" > )< / span >
2020-08-09 20:39:31 +03:00
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < a href = "15-pr.html#SP17" class = "function-link" > < span class = "function-syntax" > Properties::is_shown_in_index< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > ))< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < a href = "15-pr.html#SP15" class = "function-link" > < span class = "function-syntax" > Properties::is_either_or< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > ) == < / span > < span class = "identifier-syntax" > FALSE< / span > < span class = "plain-syntax" > )< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < a href = "16-pp.html#SP7" class = "function-link" > < span class = "function-syntax" > World::Permissions::find< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > infs< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > TRUE< / span > < span class = "plain-syntax" > )) {< / span >
2020-05-03 03:01:21 +03:00
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > parse_node< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > P< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ;< / span >
2020-08-09 20:39:31 +03:00
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > parse_node< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > S< / span > < span class = "plain-syntax" > = < / span > < a href = "16-in.html#SP13" class = "function-link" > < span class = "function-syntax" > World::Inferences::get_prop_state_without_inheritance< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > infs< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > , & < / span > < span class = "identifier-syntax" > P< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > ((< / span > < span class = "identifier-syntax" > S< / span > < span class = "plain-syntax" > ) & & (< / span > < span class = "identifier-syntax" > Wordings::nonempty< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > Node::get_text< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > S< / span > < span class = "plain-syntax" > )))) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > HTML::open_indented_p< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > OUT< / span > < span class = "plain-syntax" > , < / span > < span class = "constant-syntax" > 1< / span > < span class = "plain-syntax" > , < / span > < span class = "string-syntax" > "hanging"< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > WRITE< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "%+W: "< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > prn< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > name< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > HTML::begin_colour< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > OUT< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > I< / span > < span class = "string-syntax" > "000080"< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > WRITE< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "%+W"< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > Node::get_text< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > S< / span > < span class = "plain-syntax" > ));< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > HTML::end_colour< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > OUT< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > P< / span > < span class = "plain-syntax" > ) < / span > < span class = "identifier-syntax" > Index::link< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > OUT< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > Wordings::first_wn< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > Node::get_text< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > P< / span > < span class = "plain-syntax" > )));< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > HTML_CLOSE< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "p"< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > }< / span >
< span class = "plain-syntax" > }< / span >
< span class = "plain-syntax" > }< / span >
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< / pre >
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< p class = "commentary firstcommentary" > < a id = "SP17" class = "paragraph-anchor" > < / a > < b > § 17. Comparing inferences. < / b > The following routine is a little like < span class = "extract" > < span class = "extract-syntax" > strcmp< / span > < / span > , the standard C routine
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for comparing strings, in that it compares two inferences and returns a
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value useful for sorting algorithms: 0 if equal, positive if < span class = "extract" > < span class = "extract-syntax" > i1 < i2< / span > < / span > ,
negative if < span class = "extract" > < span class = "extract-syntax" > i2 < i1< / span > < / span > . This is a stable trichotomy; in particular,
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< / p >
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< pre class = "displayed-code all-displayed-code code-font" >
< span class = "plain-syntax" > < / span > < span class = "function-syntax" > World::Inferences::compare_inferences< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > I< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > J< / span > < span class = "plain-syntax" > ) == -< / span > < span class = "function-syntax" > World::Inferences::compare_inferences< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > J< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > I< / span > < span class = "plain-syntax" > )< / span >
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< / pre >
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< p class = "commentary" > for all pairs of inference pointers < span class = "extract" > < span class = "extract-syntax" > I< / span > < / span > and < span class = "extract" > < span class = "extract-syntax" > J< / span > < / span > .
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< / p >
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< p class = "commentary" > More importantly, though, it measures how similar the two inferences are,
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because the return value is always plus or minus one of the following.
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The notation < span class = "extract" > < span class = "extract-syntax" > CI_DIFFER_IN_WHATEVER< / span > < / span > means that the two inferences do
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not differ on all lower-order tests; thus, the higher the absolute value,
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the more similar the inferences are. (< span class = "extract" > < span class = "extract-syntax" > CI_IDENTICAL< / span > < / span > , 0, is a special case;
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this is returned only when the two inferences are literally the same
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structure, i.e., < span class = "extract" > < span class = "extract-syntax" > I == J< / span > < / span > . Merely containing identical data is not enough.)
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< / p >
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< p class = "commentary" > By convention, a pair of attached either/or properties which are negations of
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each other — say "open" and "closed" — are treated as if they were the
same property but with different values.
< / p >
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< pre class = "definitions code-font" > < span class = "definition-keyword" > define< / span > < span class = "constant-syntax" > CI_DIFFER_IN_EXISTENCE< / span > < span class = "plain-syntax" > < / span > < span class = "constant-syntax" > 1< / span >
< span class = "definition-keyword" > define< / span > < span class = "constant-syntax" > CI_DIFFER_IN_TYPE< / span > < span class = "plain-syntax" > < / span > < span class = "constant-syntax" > 2< / span >
< span class = "definition-keyword" > define< / span > < span class = "constant-syntax" > CI_DIFFER_IN_PROPERTY< / span > < span class = "plain-syntax" > < / span > < span class = "constant-syntax" > 3< / span >
< span class = "definition-keyword" > define< / span > < span class = "constant-syntax" > CI_DIFFER_IN_INFS2< / span > < span class = "plain-syntax" > < / span > < span class = "constant-syntax" > 4< / span >
< span class = "definition-keyword" > define< / span > < span class = "constant-syntax" > CI_DIFFER_IN_INFS1< / span > < span class = "plain-syntax" > < / span > < span class = "constant-syntax" > 5< / span >
< span class = "definition-keyword" > define< / span > < span class = "constant-syntax" > CI_DIFFER_IN_PROPERTY_VALUE< / span > < span class = "plain-syntax" > < / span > < span class = "constant-syntax" > 6< / span >
< span class = "definition-keyword" > define< / span > < span class = "constant-syntax" > CI_DIFFER_IN_COPY_ONLY< / span > < span class = "plain-syntax" > < / span > < span class = "constant-syntax" > 7< / span >
< span class = "definition-keyword" > define< / span > < span class = "constant-syntax" > CI_IDENTICAL< / span > < span class = "plain-syntax" > < / span > < span class = "constant-syntax" > 0< / span >
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< / pre >
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< p class = "commentary firstcommentary" > < a id = "SP18" class = "paragraph-anchor" > < / a > < b > § 18. < / b > Funny story: until 2019, this routine ran by using pointer subtraction when
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comparing, for example, the INFS references in the inferences, on the principle
that the ordering doesn't really matter so long as it is definite and stable
during a run. But in the late 2010s, desktop operating systems such as MacOS
Mojave began to randomize the address space of all executables, to make it
harder for attackers to exploit buffer overflow bugs. As a result, although
the following routine continued to make definite orderings, they would be
randomly different from one run to another. Inform's output remained
functionally correct, but the generated I6 code would subtly differ from
run to run. And so we instead now incur the cost of looking up allocation IDs,
and indeed of storing those for inference structures.
< / p >
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< p class = "commentary" > Pointer subtraction is, in any case, frowned on in all the best houses, so this
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was probably a good thing.
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< / p >
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< pre class = "displayed-code all-displayed-code code-font" >
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< span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > World::Inferences::compare_inferences< / span > < button class = "popup" onclick = "togglePopup('usagePopup26')" > < span class = "comment-syntax" > ?< / span > < span class = "popuptext" id = "usagePopup26" > Usage of < span class = "code-font" > < span class = "function-syntax" > World::Inferences::compare_inferences< / span > < / span > :< br / > < a href = "16-in.html#SP19" > § 19< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > inference< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > i1< / span > < span class = "plain-syntax" > , < / span > < span class = "reserved-syntax" > inference< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > i2< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > i1< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > i2< / span > < span class = "plain-syntax" > ) < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "constant-syntax" > CI_IDENTICAL< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > i1< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ) < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "constant-syntax" > CI_DIFFER_IN_EXISTENCE< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > i2< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ) < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > -< / span > < span class = "constant-syntax" > CI_DIFFER_IN_EXISTENCE< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > c< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > i1< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > inference_type< / span > < span class = "plain-syntax" > - < / span > < span class = "identifier-syntax" > i2< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > inference_type< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > c< / span > < span class = "plain-syntax" > > < / span > < span class = "constant-syntax" > 0< / span > < span class = "plain-syntax" > ) < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "constant-syntax" > CI_DIFFER_IN_TYPE< / span > < span class = "plain-syntax" > ; < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > c< / span > < span class = "plain-syntax" > < < / span > < span class = "constant-syntax" > 0< / span > < span class = "plain-syntax" > ) < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > -< / span > < span class = "constant-syntax" > CI_DIFFER_IN_TYPE< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > property< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > pr1< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > i1< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > inferred_property< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > property< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > pr2< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > i2< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > inferred_property< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > ((< / span > < span class = "identifier-syntax" > pr1< / span > < span class = "plain-syntax" > ) & & (< / span > < a href = "15-pr.html#SP15" class = "function-link" > < span class = "function-syntax" > Properties::is_either_or< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > pr1< / span > < span class = "plain-syntax" > )) & & < / span >
< span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > pr2< / span > < span class = "plain-syntax" > ) & & (< / span > < a href = "15-pr.html#SP15" class = "function-link" > < span class = "function-syntax" > Properties::is_either_or< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > pr2< / span > < span class = "plain-syntax" > )) & & < / span >
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< span class = "plain-syntax" > ((< / span > < span class = "identifier-syntax" > pr1< / span > < span class = "plain-syntax" > == < / span > < a href = "15-ep.html#SP6" class = "function-link" > < span class = "function-syntax" > Properties::EitherOr::get_negation< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > pr2< / span > < span class = "plain-syntax" > )) ||< / span >
< span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > pr2< / span > < span class = "plain-syntax" > == < / span > < a href = "15-ep.html#SP6" class = "function-link" > < span class = "function-syntax" > Properties::EitherOr::get_negation< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > pr1< / span > < span class = "plain-syntax" > )))) < / span > < span class = "identifier-syntax" > pr2< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > pr1< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > c< / span > < span class = "plain-syntax" > = < / span > < a href = "16-in.html#SP18" class = "function-link" > < span class = "function-syntax" > World::Inferences::measure_property< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > pr1< / span > < span class = "plain-syntax" > ) - < / span > < a href = "16-in.html#SP18" class = "function-link" > < span class = "function-syntax" > World::Inferences::measure_property< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > pr2< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > c< / span > < span class = "plain-syntax" > > < / span > < span class = "constant-syntax" > 0< / span > < span class = "plain-syntax" > ) < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "constant-syntax" > CI_DIFFER_IN_PROPERTY< / span > < span class = "plain-syntax" > ; < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > c< / span > < span class = "plain-syntax" > < < / span > < span class = "constant-syntax" > 0< / span > < span class = "plain-syntax" > ) < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > -< / span > < span class = "constant-syntax" > CI_DIFFER_IN_PROPERTY< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > c< / span > < span class = "plain-syntax" > = < / span > < a href = "16-in.html#SP18" class = "function-link" > < span class = "function-syntax" > World::Inferences::measure_infs< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > i1< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > infs_ref2< / span > < span class = "plain-syntax" > ) - < / span > < a href = "16-in.html#SP18" class = "function-link" > < span class = "function-syntax" > World::Inferences::measure_infs< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > i2< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > infs_ref2< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > c< / span > < span class = "plain-syntax" > > < / span > < span class = "constant-syntax" > 0< / span > < span class = "plain-syntax" > ) < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "constant-syntax" > CI_DIFFER_IN_INFS2< / span > < span class = "plain-syntax" > ; < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > c< / span > < span class = "plain-syntax" > < < / span > < span class = "constant-syntax" > 0< / span > < span class = "plain-syntax" > ) < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > -< / span > < span class = "constant-syntax" > CI_DIFFER_IN_INFS2< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > c< / span > < span class = "plain-syntax" > = < / span > < a href = "16-in.html#SP18" class = "function-link" > < span class = "function-syntax" > World::Inferences::measure_infs< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > i1< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > infs_ref1< / span > < span class = "plain-syntax" > ) - < / span > < a href = "16-in.html#SP18" class = "function-link" > < span class = "function-syntax" > World::Inferences::measure_infs< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > i2< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > infs_ref1< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > c< / span > < span class = "plain-syntax" > > < / span > < span class = "constant-syntax" > 0< / span > < span class = "plain-syntax" > ) < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "constant-syntax" > CI_DIFFER_IN_INFS1< / span > < span class = "plain-syntax" > ; < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > c< / span > < span class = "plain-syntax" > < < / span > < span class = "constant-syntax" > 0< / span > < span class = "plain-syntax" > ) < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > -< / span > < span class = "constant-syntax" > CI_DIFFER_IN_INFS1< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > c< / span > < span class = "plain-syntax" > = < / span > < a href = "16-in.html#SP18" class = "function-link" > < span class = "function-syntax" > World::Inferences::measure_pn< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > i1< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > spec_ref2< / span > < span class = "plain-syntax" > ) - < / span > < a href = "16-in.html#SP18" class = "function-link" > < span class = "function-syntax" > World::Inferences::measure_pn< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > i2< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > spec_ref2< / span > < span class = "plain-syntax" > );< / span >
2020-05-03 03:01:21 +03:00
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > c< / span > < span class = "plain-syntax" > > < / span > < span class = "constant-syntax" > 0< / span > < span class = "plain-syntax" > ) < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "constant-syntax" > CI_DIFFER_IN_INFS2< / span > < span class = "plain-syntax" > ; < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > c< / span > < span class = "plain-syntax" > < < / span > < span class = "constant-syntax" > 0< / span > < span class = "plain-syntax" > ) < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > -< / span > < span class = "constant-syntax" > CI_DIFFER_IN_INFS2< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > c< / span > < span class = "plain-syntax" > = < / span > < a href = "16-in.html#SP18" class = "function-link" > < span class = "function-syntax" > World::Inferences::measure_pn< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > i1< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > spec_ref1< / span > < span class = "plain-syntax" > ) - < / span > < a href = "16-in.html#SP18" class = "function-link" > < span class = "function-syntax" > World::Inferences::measure_pn< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > i2< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > spec_ref1< / span > < span class = "plain-syntax" > );< / span >
2020-05-03 03:01:21 +03:00
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > c< / span > < span class = "plain-syntax" > > < / span > < span class = "constant-syntax" > 0< / span > < span class = "plain-syntax" > ) < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "constant-syntax" > CI_DIFFER_IN_INFS1< / span > < span class = "plain-syntax" > ; < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > c< / span > < span class = "plain-syntax" > < < / span > < span class = "constant-syntax" > 0< / span > < span class = "plain-syntax" > ) < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > -< / span > < span class = "constant-syntax" > CI_DIFFER_IN_INFS1< / span > < span class = "plain-syntax" > ;< / span >
2020-08-09 20:39:31 +03:00
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > c< / span > < span class = "plain-syntax" > = < / span > < a href = "16-in.html#SP18" class = "function-link" > < span class = "function-syntax" > World::Inferences::measure_inf< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > i1< / span > < span class = "plain-syntax" > ) - < / span > < a href = "16-in.html#SP18" class = "function-link" > < span class = "function-syntax" > World::Inferences::measure_inf< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > i2< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > parse_node< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > val1< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > i1< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > inferred_property_value< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > parse_node< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > val2< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > i2< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > inferred_property_value< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > ((< / span > < span class = "identifier-syntax" > i1< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > inferred_property< / span > < span class = "plain-syntax" > != < / span > < span class = "identifier-syntax" > i2< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > inferred_property< / span > < span class = "plain-syntax" > ) ||< / span >
2020-08-24 21:30:28 +03:00
< span class = "plain-syntax" > ((< / span > < span class = "identifier-syntax" > val1< / span > < span class = "plain-syntax" > ) & & (< / span > < span class = "identifier-syntax" > val2< / span > < span class = "plain-syntax" > ) & & (< / span > < a href = "14-rv.html#SP21" class = "function-link" > < span class = "function-syntax" > Rvalues::compare_CONSTANT< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > val1< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > val2< / span > < span class = "plain-syntax" > ) == < / span > < span class = "identifier-syntax" > FALSE< / span > < span class = "plain-syntax" > ))) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > c< / span > < span class = "plain-syntax" > > < / span > < span class = "constant-syntax" > 0< / span > < span class = "plain-syntax" > ) < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "constant-syntax" > CI_DIFFER_IN_PROPERTY_VALUE< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > c< / span > < span class = "plain-syntax" > < < / span > < span class = "constant-syntax" > 0< / span > < span class = "plain-syntax" > ) < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > -< / span > < span class = "constant-syntax" > CI_DIFFER_IN_PROPERTY_VALUE< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > c< / span > < span class = "plain-syntax" > > < / span > < span class = "constant-syntax" > 0< / span > < span class = "plain-syntax" > ) < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "constant-syntax" > CI_DIFFER_IN_COPY_ONLY< / span > < span class = "plain-syntax" > ; < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > c< / span > < span class = "plain-syntax" > < < / span > < span class = "constant-syntax" > 0< / span > < span class = "plain-syntax" > ) < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > -< / span > < span class = "constant-syntax" > CI_DIFFER_IN_COPY_ONLY< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "constant-syntax" > CI_IDENTICAL< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
< span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > World::Inferences::measure_property< / span > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > property< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > P< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > P< / span > < span class = "plain-syntax" > ) < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "constant-syntax" > 1< / span > < span class = "plain-syntax" > + < / span > < span class = "identifier-syntax" > P< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > allocation_id< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "constant-syntax" > 0< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
< span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > World::Inferences::measure_inf< / span > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > inference< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > I< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > I< / span > < span class = "plain-syntax" > ) < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "constant-syntax" > 1< / span > < span class = "plain-syntax" > + < / span > < span class = "identifier-syntax" > I< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > allocation_id< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "constant-syntax" > 0< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
< span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > World::Inferences::measure_infs< / span > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > inference_subject< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > IS< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > IS< / span > < span class = "plain-syntax" > ) < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "constant-syntax" > 1< / span > < span class = "plain-syntax" > + < / span > < span class = "identifier-syntax" > IS< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > allocation_id< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "constant-syntax" > 0< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
< span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > World::Inferences::measure_pn< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > parse_node< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > N< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > N< / span > < span class = "plain-syntax" > ) < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "constant-syntax" > 1< / span > < span class = "plain-syntax" > + < / span > < span class = "identifier-syntax" > N< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > allocation_id< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "constant-syntax" > 0< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
< span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > infs_diversion< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > TRUE< / span > < span class = "plain-syntax" > ;< / span >
< span class = "reserved-syntax" > void< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > World::Inferences::diversion_on< / span > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > void< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > infs_diversion< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > TRUE< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
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< span class = "reserved-syntax" > void< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > World::Inferences::diversion_off< / span > < button class = "popup" onclick = "togglePopup('usagePopup27')" > < span class = "comment-syntax" > ?< / span > < span class = "popuptext" id = "usagePopup27" > Usage of < span class = "code-font" > < span class = "function-syntax" > World::Inferences::diversion_off< / span > < / span > :< br / > Plugin Calls - < a href = "26-pc.html#SP7" > § 7< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > void< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > infs_diversion< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > FALSE< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
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< span class = "reserved-syntax" > inference_subject< / span > < span class = "plain-syntax" > *< / span > < span class = "function-syntax" > World::Inferences::divert_infs< / span > < button class = "popup" onclick = "togglePopup('usagePopup28')" > < span class = "comment-syntax" > ?< / span > < span class = "popuptext" id = "usagePopup28" > Usage of < span class = "code-font" > < span class = "function-syntax" > World::Inferences::divert_infs< / span > < / span > :< br / > < a href = "16-in.html#SP7" > § 7< / a > , < a href = "16-in.html#SP9" > § 9< / a > , < a href = "16-in.html#SP12" > § 12< / a > , < a href = "16-in.html#SP19" > § 19< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > inference_subject< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > infs< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > #< / span > < span class = "identifier-syntax" > ifdef< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > IF_MODULE< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > infs_diversion< / span > < span class = "plain-syntax" > )< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > ((< / span > < span class = "identifier-syntax" > I_yourself< / span > < span class = "plain-syntax" > ) & & (< / span > < span class = "identifier-syntax" > player_VAR< / span > < span class = "plain-syntax" > ) & & < / span >
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< span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > infs< / span > < span class = "plain-syntax" > == < / span > < a href = "6-ins.html#SP12" class = "function-link" > < span class = "function-syntax" > Instances::as_subject< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > I_yourself< / span > < span class = "plain-syntax" > ))) {< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > parse_node< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > val< / span > < span class = "plain-syntax" > = < / span > < a href = "6-nv.html#SP16" class = "function-link" > < span class = "function-syntax" > NonlocalVariables::get_initial_value< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > player_VAR< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > inference_subject< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > divert< / span > < span class = "plain-syntax" > = < / span > < a href = "16-is.html#SP16" class = "function-link" > < span class = "function-syntax" > InferenceSubjects::from_specification< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > val< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > divert< / span > < span class = "plain-syntax" > ) < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > divert< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
< span class = "plain-syntax" > #< / span > < span class = "identifier-syntax" > endif< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > infs< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
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< / pre >
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< p class = "commentary firstcommentary" > < a id = "SP19" class = "paragraph-anchor" > < / a > < b > § 19. Joining an inference to what is known about an object. < / b > As the above will have made clear, it is not altogether easy to join a new
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inference to the linked list of inferences which belong to a given subject: we
can't simply put it at the end of the list. The following routine looks simple
enough, but was a difficult one to get right.
< / p >
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< p class = "commentary" > The loop here completes if and only if the inference is safely joined to the
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list; that is, if it is found to contradict or duplicate existing knowledge,
then the routine exits without completing the loop.
< / p >
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< pre class = "displayed-code all-displayed-code code-font" >
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< span class = "reserved-syntax" > void< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > World::Inferences::join_inference< / span > < button class = "popup" onclick = "togglePopup('usagePopup29')" > < span class = "comment-syntax" > ?< / span > < span class = "popuptext" id = "usagePopup29" > Usage of < span class = "code-font" > < span class = "function-syntax" > World::Inferences::join_inference< / span > < / span > :< br / > < a href = "16-in.html#SP8" > § 8< / a > , < a href = "16-in.html#SP9" > § 9< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > inference< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > , < / span > < span class = "reserved-syntax" > inference_subject< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > infs< / span > < span class = "plain-syntax" > ) {< / span >
2020-05-03 03:01:21 +03:00
< span class = "plain-syntax" > < / span > < span class = "constant-syntax" > PROTECTED_MODEL_PROCEDURE< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ) < / span > < span class = "identifier-syntax" > internal_error< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "joining null inference"< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > infs< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ) < / span > < span class = "identifier-syntax" > internal_error< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "joining to null inference subject"< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > infs< / span > < span class = "plain-syntax" > = < / span > < a href = "16-in.html#SP18" class = "function-link" > < span class = "function-syntax" > World::Inferences::divert_infs< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > infs< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > inserted< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > FALSE< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > inference< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > list< / span > < span class = "plain-syntax" > , *< / span > < span class = "identifier-syntax" > prev< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > for< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > prev< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > list< / span > < span class = "plain-syntax" > = < / span > < a href = "16-is.html#SP15" class = "function-link" > < span class = "function-syntax" > InferenceSubjects::get_inferences< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > infs< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > list< / span > < span class = "plain-syntax" > ) & & (< / span > < span class = "identifier-syntax" > inserted< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > FALSE< / span > < span class = "plain-syntax" > ); < / span > < span class = "identifier-syntax" > prev< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > list< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > list< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > list< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > next< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > c< / span > < span class = "plain-syntax" > = < / span > < a href = "16-in.html#SP18" class = "function-link" > < span class = "function-syntax" > World::Inferences::compare_inferences< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > list< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > d< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > c< / span > < span class = "plain-syntax" > ; < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > d< / span > < span class = "plain-syntax" > < < / span > < span class = "constant-syntax" > 0< / span > < span class = "plain-syntax" > ) < / span > < span class = "identifier-syntax" > d< / span > < span class = "plain-syntax" > = -< / span > < span class = "identifier-syntax" > d< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > icl< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > certainty< / span > < span class = "plain-syntax" > ; < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > icl< / span > < span class = "plain-syntax" > < < / span > < span class = "constant-syntax" > 0< / span > < span class = "plain-syntax" > ) < / span > < span class = "identifier-syntax" > icl< / span > < span class = "plain-syntax" > = -< / span > < span class = "identifier-syntax" > icl< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > lcl< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > list< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > certainty< / span > < span class = "plain-syntax" > ; < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > lcl< / span > < span class = "plain-syntax" > < < / span > < span class = "constant-syntax" > 0< / span > < span class = "plain-syntax" > ) < / span > < span class = "identifier-syntax" > lcl< / span > < span class = "plain-syntax" > = -< / span > < span class = "identifier-syntax" > lcl< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > affinity_threshold< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "named-paragraph-container code-font" > < a href = "16-in.html#SP19_2" class = "named-paragraph-link" > < span class = "named-paragraph" > Determine the affinity threshold, which depends on the inference type< / span > < span class = "named-paragraph-number" > 19.2< / span > < / a > < / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > d< / span > < span class = "plain-syntax" > > = < / span > < span class = "identifier-syntax" > affinity_threshold< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "named-paragraph-container code-font" > < a href = "16-in.html#SP19_3" class = "named-paragraph-link" > < span class = "named-paragraph" > These relate to the same basic fact and one must exclude the other< / span > < span class = "named-paragraph-number" > 19.3< / span > < / a > < / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > c< / span > < span class = "plain-syntax" > < 0) < / span > < span class = "named-paragraph-container code-font" > < a href = "16-in.html#SP19_1" class = "named-paragraph-link" > < span class = "named-paragraph" > Insert the newly-drawn inference before this list position< / span > < span class = "named-paragraph-number" > 19.1< / span > < / a > < / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > }< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > inserted< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > FALSE< / span > < span class = "plain-syntax" > ) < / span > < span class = "named-paragraph-container code-font" > < a href = "16-in.html#SP19_1" class = "named-paragraph-link" > < span class = "named-paragraph" > Insert the newly-drawn inference before this list position< / span > < span class = "named-paragraph-number" > 19.1< / span > < / a > < / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < a href = "16-in.html#SP20" class = "function-link" > < span class = "function-syntax" > World::Inferences::report_inference< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > infs< / span > < span class = "plain-syntax" > , < / span > < span class = "string-syntax" > "drawn"< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > inference_type< / span > < span class = "plain-syntax" > == < / span > < span class = "constant-syntax" > PROPERTY_INF< / span > < span class = "plain-syntax" > )< / span >
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< span class = "plain-syntax" > < / span > < a href = "26-pc.html#SP7" class = "function-link" > < span class = "function-syntax" > Plugins::Call::property_value_notify< / span > < / a > < span class = "plain-syntax" > (< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > inferred_property< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > inferred_property_value< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > }< / span >
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< / pre >
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< p class = "commentary firstcommentary" > < a id = "SP19_1" class = "paragraph-anchor" > < / a > < b > § 19.1. < / b > < span class = "named-paragraph-container code-font" > < span class = "named-paragraph-defn" > Insert the newly-drawn inference before this list position< / span > < span class = "named-paragraph-number" > 19.1< / span > < / span > < span class = "comment-syntax" > =< / span >
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< / p >
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< pre class = "displayed-code all-displayed-code code-font" >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > prev< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ) < / span > < a href = "16-is.html#SP15" class = "function-link" > < span class = "function-syntax" > InferenceSubjects::set_inferences< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > infs< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > ); < / span > < span class = "reserved-syntax" > else< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > prev< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > next< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > next< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > list< / span > < span class = "plain-syntax" > ; < / span > < span class = "identifier-syntax" > inserted< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > TRUE< / span > < span class = "plain-syntax" > ;< / span >
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< / pre >
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< ul class = "endnotetexts" > < li > This code is used in < a href = "16-in.html#SP19" > § 19< / a > (twice).< / li > < / ul >
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< p class = "commentary firstcommentary" > < a id = "SP19_2" class = "paragraph-anchor" > < / a > < b > § 19.2. < / b > The first question we must answer is when our two inferences are talking
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about what is basically the same fact. We do this by requiring that the
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absolute value of the < span class = "extract" > < span class = "extract-syntax" > World::Inferences::compare_inferences< / span > < / span > score — which will always be
one of the < span class = "extract" > < span class = "extract-syntax" > CI_*< / span > < / span > constants enumerated above — must exceed some threshold.
(Recall that higher scores mean greater similarity; the perfect < span class = "extract" > < span class = "extract-syntax" > CI_IDENTICAL< / span > < / span >
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is not possible here.)
< / p >
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< p class = "commentary" > The threshold depends on what type of inference we're looking at, but it's
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always at least half-way down the list, so we can be certain that
< / p >
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< pre class = "displayed-code all-displayed-code code-font" >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > inference_type< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > list< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > inference_type< / span >
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< / pre >
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< p class = "commentary" > (and therefore it's unambiguous what we mean by the type of inference being
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looked at). For two property inferences to be talking about the same fact,
they might still differ in the property value — one might say the carrying
capacity of a table is 10 and the other that it's 15, for example — so
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the threshold is set low enough for a score of < span class = "extract" > < span class = "extract-syntax" > CI_DIFFER_IN_PROPERTY_VALUE< / span > < / span >
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still to get in. But with an arbitrary relation threshold, two inferences
never talk about the same fact unless they're essentially identical.
< / p >
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< p class = "commentary" > We set the affinity threshold purposely low for customised inferences
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belonging to plugins (at present, anyway).
< / p >
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< p class = "commentary" > < span class = "named-paragraph-container code-font" > < span class = "named-paragraph-defn" > Determine the affinity threshold, which depends on the inference type< / span > < span class = "named-paragraph-number" > 19.2< / span > < / span > < span class = "comment-syntax" > =< / span >
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< / p >
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< pre class = "displayed-code all-displayed-code code-font" >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > switch< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > list< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > inference_type< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > case< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > PROPERTY_INF:< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > affinity_threshold< / span > < span class = "plain-syntax" > = < / span > < span class = "constant-syntax" > CI_DIFFER_IN_PROPERTY_VALUE< / span > < span class = "plain-syntax" > ; < / span > < span class = "reserved-syntax" > break< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > case< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > ARBITRARY_RELATION_INF:< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > affinity_threshold< / span > < span class = "plain-syntax" > = < / span > < span class = "constant-syntax" > CI_DIFFER_IN_COPY_ONLY< / span > < span class = "plain-syntax" > ; < / span > < span class = "reserved-syntax" > break< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > default:< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > affinity_threshold< / span > < span class = "plain-syntax" > = < / span > < span class = "constant-syntax" > CI_DIFFER_IN_INFS1< / span > < span class = "plain-syntax" > ; < / span > < span class = "reserved-syntax" > break< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
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< / pre >
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< ul class = "endnotetexts" > < li > This code is used in < a href = "16-in.html#SP19" > § 19< / a > .< / li > < / ul >
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< p class = "commentary firstcommentary" > < a id = "SP19_3" class = "paragraph-anchor" > < / a > < b > § 19.3. < / b > So, let's suppose our new inference < span class = "extract" > < span class = "extract-syntax" > i< / span > < / span > is sufficiently close to the our
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existing one, < span class = "extract" > < span class = "extract-syntax" > list< / span > < / span > . What then?
< / p >
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< p class = "commentary" > < span class = "named-paragraph-container code-font" > < span class = "named-paragraph-defn" > These relate to the same basic fact and one must exclude the other< / span > < span class = "named-paragraph-number" > 19.3< / span > < / span > < span class = "comment-syntax" > =< / span >
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< / p >
< pre class = "displayed-code all-displayed-code code-font" >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > icl< / span > < span class = "plain-syntax" > != < / span > < span class = "identifier-syntax" > lcl< / span > < span class = "plain-syntax" > ) < / span > < span class = "named-paragraph-container code-font" > < a href = "16-in.html#SP19_3_1" class = "named-paragraph-link" > < span class = "named-paragraph" > They have different certainties, so take the more certain to be true< / span > < span class = "named-paragraph-number" > 19.3.1< / span > < / a > < / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > else< / span > < span class = "plain-syntax" > {< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > contradiction_flag< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > FALSE< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "named-paragraph-container code-font" > < a href = "16-in.html#SP19_3_2" class = "named-paragraph-link" > < span class = "named-paragraph" > They are equally certain, so determine whether or not they contradict each other< / span > < span class = "named-paragraph-number" > 19.3.2< / span > < / a > < / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > contradiction_flag< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > icl< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > CERTAIN_CE< / span > < span class = "plain-syntax" > ) < / span > < span class = "named-paragraph-container code-font" > < a href = "16-in.html#SP19_3_3" class = "named-paragraph-link" > < span class = "named-paragraph" > Contradictions of certainty are forbidden, so issue a problem< / span > < span class = "named-paragraph-number" > 19.3.3< / span > < / a > < / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > ((< / span > < span class = "identifier-syntax" > icl< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > LIKELY_CE< / span > < span class = "plain-syntax" > ) & & (< / span > < a href = "16-is.html#SP15" class = "function-link" > < span class = "function-syntax" > InferenceSubjects::get_default_certainty< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > infs< / span > < span class = "plain-syntax" > ) == < / span > < span class = "identifier-syntax" > LIKELY_CE< / span > < span class = "plain-syntax" > ))< / span >
< span class = "plain-syntax" > < / span > < span class = "named-paragraph-container code-font" > < a href = "16-in.html#SP19_3_4" class = "named-paragraph-link" > < span class = "named-paragraph" > Later uncertain data beats earlier, for subjects which generalise about whole domains< / span > < span class = "named-paragraph-number" > 19.3.4< / span > < / a > < / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > }< / span >
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< span class = "plain-syntax" > < / span > < a href = "16-in.html#SP20" class = "function-link" > < span class = "function-syntax" > World::Inferences::report_inference< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > infs< / span > < span class = "plain-syntax" > , < / span > < span class = "string-syntax" > "redundant"< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > }< / span >
< / pre >
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< ul class = "endnotetexts" > < li > This code is used in < a href = "16-in.html#SP19" > § 19< / a > .< / li > < / ul >
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< p class = "commentary firstcommentary" > < a id = "SP19_3_1" class = "paragraph-anchor" > < / a > < b > § 19.3.1. < / b > Where:
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< / p >
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< p class = "commentary" > < span class = "named-paragraph-container code-font" > < span class = "named-paragraph-defn" > They have different certainties, so take the more certain to be true< / span > < span class = "named-paragraph-number" > 19.3.1< / span > < / span > < span class = "comment-syntax" > =< / span >
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< / p >
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< pre class = "displayed-code all-displayed-code code-font" >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > lcl< / span > < span class = "plain-syntax" > > < / span > < span class = "identifier-syntax" > icl< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < a href = "16-in.html#SP20" class = "function-link" > < span class = "function-syntax" > World::Inferences::report_inference< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > infs< / span > < span class = "plain-syntax" > , < / span > < span class = "string-syntax" > "discarded (we already know better)"< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > } < / span > < span class = "reserved-syntax" > else< / span > < span class = "plain-syntax" > {< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > next< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > list< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > next< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > prev< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ) < / span > < a href = "16-is.html#SP15" class = "function-link" > < span class = "function-syntax" > InferenceSubjects::set_inferences< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > infs< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > ); < / span > < span class = "reserved-syntax" > else< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > prev< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > next< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < a href = "16-in.html#SP20" class = "function-link" > < span class = "function-syntax" > World::Inferences::report_inference< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > infs< / span > < span class = "plain-syntax" > , < / span > < span class = "string-syntax" > "replaced existing less certain one"< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > }< / span >
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< / pre >
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< ul class = "endnotetexts" > < li > This code is used in < a href = "16-in.html#SP19_3" > § 19.3< / a > .< / li > < / ul >
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< p class = "commentary firstcommentary" > < a id = "SP19_3_2" class = "paragraph-anchor" > < / a > < b > § 19.3.2. < / b > Note that certainties opposite in sign reverse the issue of whether a
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contradiction has occurred. The following, after all, do not conflict:
< / p >
< blockquote >
< p > The box is always open. The box is never closed.< / p >
< / blockquote >
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< p class = "commentary" > These will cause < span class = "extract" > < span class = "extract-syntax" > contradiction_flag< / span > < / span > to be initially set, below, but then
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flipped back again because the certainties are opposite.
< / p >
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< p class = "commentary" > With an arbitrary relation inference, contradictions never occur. (Those
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are always required to be positive in sense, i.e., with positive certainty,
and so clashed are impossible.)
< / p >
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< p class = "commentary" > < span class = "named-paragraph-container code-font" > < span class = "named-paragraph-defn" > They are equally certain, so determine whether or not they contradict each other< / span > < span class = "named-paragraph-number" > 19.3.2< / span > < / span > < span class = "comment-syntax" > =< / span >
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< / p >
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< pre class = "displayed-code all-displayed-code code-font" >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > switch< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > list< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > inference_type< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > case< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > PROPERTY_INF:< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > d< / span > < span class = "plain-syntax" > == < / span > < span class = "constant-syntax" > CI_DIFFER_IN_PROPERTY_VALUE< / span > < span class = "plain-syntax" > ) < / span > < span class = "identifier-syntax" > contradiction_flag< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > TRUE< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > break< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > default:< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < a href = "26-pc.html#SP7" class = "function-link" > < span class = "function-syntax" > Plugins::Call::inferences_contradict< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > list< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > d< / span > < span class = "plain-syntax" > )) < / span > < span class = "identifier-syntax" > contradiction_flag< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > TRUE< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > break< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > list< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > certainty< / span > < span class = "plain-syntax" > == -< / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > certainty< / span > < span class = "plain-syntax" > ) < / span > < span class = "identifier-syntax" > contradiction_flag< / span > < span class = "plain-syntax" > = (< / span > < span class = "identifier-syntax" > contradiction_flag< / span > < span class = "plain-syntax" > )?< / span > < span class = "identifier-syntax" > FALSE:TRUE< / span > < span class = "plain-syntax" > ;< / span >
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< / pre >
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< ul class = "endnotetexts" > < li > This code is used in < a href = "16-in.html#SP19_3" > § 19.3< / a > .< / li > < / ul >
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< p class = "commentary firstcommentary" > < a id = "SP19_3_3" class = "paragraph-anchor" > < / a > < b > § 19.3.3. < / b > < span class = "named-paragraph-container code-font" > < span class = "named-paragraph-defn" > Contradictions of certainty are forbidden, so issue a problem< / span > < span class = "named-paragraph-number" > 19.3.3< / span > < / span > < span class = "comment-syntax" > =< / span >
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< / p >
< pre class = "displayed-code all-displayed-code code-font" >
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< span class = "plain-syntax" > < / span > < a href = "16-in.html#SP20" class = "function-link" > < span class = "function-syntax" > World::Inferences::report_inference< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > infs< / span > < span class = "plain-syntax" > , < / span > < span class = "string-syntax" > "contradiction"< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < a href = "16-in.html#SP20" class = "function-link" > < span class = "function-syntax" > World::Inferences::report_inference< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > list< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > infs< / span > < span class = "plain-syntax" > , < / span > < span class = "string-syntax" > "with"< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > ((< / span > < span class = "identifier-syntax" > list< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > inference_type< / span > < span class = "plain-syntax" > != < / span > < span class = "constant-syntax" > PROPERTY_INF< / span > < span class = "plain-syntax" > ) & & < / span >
< span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > list< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > inference_type< / span > < span class = "plain-syntax" > != < / span > < span class = "constant-syntax" > ARBITRARY_RELATION_INF< / span > < span class = "plain-syntax" > ) & & < / span >
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< span class = "plain-syntax" > (< / span > < a href = "26-pc.html#SP7" class = "function-link" > < span class = "function-syntax" > Plugins::Call::explain_contradiction< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > list< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > d< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > infs< / span > < span class = "plain-syntax" > ))) < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > inference_type< / span > < span class = "plain-syntax" > == < / span > < span class = "constant-syntax" > PROPERTY_INF< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > inferred_property< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > P_variable_initial_value< / span > < span class = "plain-syntax" > )< / span >
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< span class = "plain-syntax" > < / span > < a href = "2-si.html#SP1" class = "function-link" > < span class = "function-syntax" > StandardProblems::two_sentences_problem< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > _p_< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > PM_VariableContradiction< / span > < span class = "plain-syntax" > ),< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > list< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > inferred_from< / span > < span class = "plain-syntax" > ,< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "this looks like a contradiction"< / span > < span class = "plain-syntax" > ,< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "because the initial value of this variable seems to be being set "< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "in each of these sentences, but with a different outcome."< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > else< / span > < span class = "plain-syntax" > {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < a href = "15-pr.html#SP15" class = "function-link" > < span class = "function-syntax" > Properties::is_value_property< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > inferred_property< / span > < span class = "plain-syntax" > )) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > binary_predicate< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > bp< / span > < span class = "plain-syntax" > =< / span >
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< span class = "plain-syntax" > < / span > < a href = "15-vp.html#SP8" class = "function-link" > < span class = "function-syntax" > Properties::Valued::get_stored_relation< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > inferred_property< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > bp< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > Wordings::match< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > Node::get_text< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > current_sentence< / span > < span class = "plain-syntax" > ), < / span > < span class = "identifier-syntax" > Node::get_text< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > list< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > inferred_from< / span > < span class = "plain-syntax" > ))) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > Problems::quote_source< / span > < span class = "plain-syntax" > (1, < / span > < span class = "identifier-syntax" > current_sentence< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < a href = "2-sq.html#SP1" class = "function-link" > < span class = "function-syntax" > Problems::quote_relation< / span > < / a > < span class = "plain-syntax" > (3, < / span > < span class = "identifier-syntax" > bp< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < a href = "2-sq.html#SP2" class = "function-link" > < span class = "function-syntax" > Problems::quote_subject< / span > < / a > < span class = "plain-syntax" > (4, < / span > < span class = "identifier-syntax" > infs< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < a href = "2-sq.html#SP1" class = "function-link" > < span class = "function-syntax" > Problems::quote_spec< / span > < / a > < span class = "plain-syntax" > (5, < / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > inferred_property_value< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < a href = "2-sq.html#SP1" class = "function-link" > < span class = "function-syntax" > Problems::quote_spec< / span > < / a > < span class = "plain-syntax" > (6, < / span > < span class = "identifier-syntax" > list< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > inferred_property_value< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > StandardProblems::handmade_problem< / span > < span class = "plain-syntax" > (< / span > < a href = "1-wtc.html#SP6" class = "function-link" > < span class = "function-syntax" > Task::syntax_tree< / span > < / a > < span class = "plain-syntax" > (), < / span > < span class = "identifier-syntax" > _p_< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > PM_RelationContradiction2< / span > < span class = "plain-syntax" > ));< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > Problems::issue_problem_segment< / span > < span class = "plain-syntax" > (< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "I'm finding a contradiction at the sentence %1, "< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "because it means I can't set up %3. "< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "On the one hand, %4 should relate to %5, but on the other "< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "hand to %6, and this is a relation which doesn't allow "< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "such clashes."< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > Problems::issue_problem_end< / span > < span class = "plain-syntax" > ();< / span >
< span class = "plain-syntax" > } < / span > < span class = "reserved-syntax" > else< / span > < span class = "plain-syntax" > {< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > Problems::quote_source< / span > < span class = "plain-syntax" > (1, < / span > < span class = "identifier-syntax" > current_sentence< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > Problems::quote_source< / span > < span class = "plain-syntax" > (2, < / span > < span class = "identifier-syntax" > list< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > inferred_from< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < a href = "2-sq.html#SP1" class = "function-link" > < span class = "function-syntax" > Problems::quote_relation< / span > < / a > < span class = "plain-syntax" > (3, < / span > < span class = "identifier-syntax" > bp< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < a href = "2-sq.html#SP2" class = "function-link" > < span class = "function-syntax" > Problems::quote_subject< / span > < / a > < span class = "plain-syntax" > (4, < / span > < span class = "identifier-syntax" > infs< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < a href = "2-sq.html#SP1" class = "function-link" > < span class = "function-syntax" > Problems::quote_spec< / span > < / a > < span class = "plain-syntax" > (5, < / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > inferred_property_value< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < a href = "2-sq.html#SP1" class = "function-link" > < span class = "function-syntax" > Problems::quote_spec< / span > < / a > < span class = "plain-syntax" > (6, < / span > < span class = "identifier-syntax" > list< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > inferred_property_value< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > StandardProblems::handmade_problem< / span > < span class = "plain-syntax" > (< / span > < a href = "1-wtc.html#SP6" class = "function-link" > < span class = "function-syntax" > Task::syntax_tree< / span > < / a > < span class = "plain-syntax" > (), < / span > < span class = "identifier-syntax" > _p_< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > PM_RelationContradiction< / span > < span class = "plain-syntax" > ));< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > Problems::issue_problem_segment< / span > < span class = "plain-syntax" > (< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "I'm finding a contradiction at the sentences %1 and %2, "< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "because between them they set up rival versions of %3. "< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "On the one hand, %4 should relate to %5, but on the other "< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "hand to %6, and this is a relation which doesn't allow "< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "such clashes."< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > Problems::issue_problem_end< / span > < span class = "plain-syntax" > ();< / span >
< span class = "plain-syntax" > }< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
< span class = "plain-syntax" > }< / span >
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< span class = "plain-syntax" > < / span > < a href = "2-si.html#SP1" class = "function-link" > < span class = "function-syntax" > StandardProblems::two_sentences_problem< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > _p_< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > PM_PropertyContradiction< / span > < span class = "plain-syntax" > ),< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > list< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > inferred_from< / span > < span class = "plain-syntax" > ,< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "this looks like a contradiction"< / span > < span class = "plain-syntax" > ,< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "because the same property seems to be being set in each of these sentences, "< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "but with a different outcome."< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > }< / span >
< span class = "plain-syntax" > } < / span > < span class = "reserved-syntax" > else< / span >
< span class = "plain-syntax" > #< / span > < span class = "identifier-syntax" > ifdef< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > IF_MODULE< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > inference_type< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > IS_ROOM_INF< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < a href = "2-si.html#SP1" class = "function-link" > < span class = "function-syntax" > StandardProblems::two_sentences_problem< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > _p_< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > PM_WhenIsARoomNotARoom< / span > < span class = "plain-syntax" > ),< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > list< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > inferred_from< / span > < span class = "plain-syntax" > ,< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "this looks like a contradiction"< / span > < span class = "plain-syntax" > ,< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "because apparently something would have to be both a room and not a "< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "room at the same time."< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > } < / span > < span class = "reserved-syntax" > else< / span >
< span class = "plain-syntax" > #< / span > < span class = "identifier-syntax" > endif< / span >
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< span class = "plain-syntax" > < / span > < a href = "2-si.html#SP1" class = "function-link" > < span class = "function-syntax" > StandardProblems::two_sentences_problem< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > _p_< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > PM_Contradiction< / span > < span class = "plain-syntax" > ),< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > list< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > inferred_from< / span > < span class = "plain-syntax" > ,< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "this looks like a contradiction"< / span > < span class = "plain-syntax" > ,< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "which might be because I have misunderstood what was meant to be the subject "< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "of one or both of those sentences."< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > ;< / span >
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< / pre >
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< ul class = "endnotetexts" > < li > This code is used in < a href = "16-in.html#SP19_3" > § 19.3< / a > .< / li > < / ul >
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< p class = "commentary firstcommentary" > < a id = "SP19_3_4" class = "paragraph-anchor" > < / a > < b > § 19.3.4. < / b > When talking about kinds or kinds of value, we allow new merely likely
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information to displace old; but not when talking about specific objects or
values, when the initial information stands. (This is to make it easier for
people to change the effect of extensions which create kinds and specify their
likely properties.)
< / p >
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< p class = "commentary" > < span class = "named-paragraph-container code-font" > < span class = "named-paragraph-defn" > Later uncertain data beats earlier, for subjects which generalise about whole domains< / span > < span class = "named-paragraph-number" > 19.3.4< / span > < / span > < span class = "comment-syntax" > =< / span >
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< / p >
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< pre class = "displayed-code all-displayed-code code-font" >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > next< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > list< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > next< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > prev< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ) < / span > < a href = "16-is.html#SP15" class = "function-link" > < span class = "function-syntax" > InferenceSubjects::set_inferences< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > infs< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > ); < / span > < span class = "reserved-syntax" > else< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > prev< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > next< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < a href = "16-in.html#SP20" class = "function-link" > < span class = "function-syntax" > World::Inferences::report_inference< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > infs< / span > < span class = "plain-syntax" > , < / span > < span class = "string-syntax" > "replaced existing also only likely one"< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > ;< / span >
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< / pre >
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< ul class = "endnotetexts" > < li > This code is used in < a href = "16-in.html#SP19_3" > § 19.3< / a > .< / li > < / ul >
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< p class = "commentary firstcommentary" > < a id = "SP20" class = "paragraph-anchor" > < / a > < b > § 20. Logging inferences. < / b > We keep the debugging log file more than usually well informed about what
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goes on with inferences, as there is obviously great potential for mystifying
bugs if inferences are incorrectly ignored.
< / p >
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< pre class = "displayed-code all-displayed-code code-font" >
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< span class = "reserved-syntax" > void< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > World::Inferences::report_inference< / span > < button class = "popup" onclick = "togglePopup('usagePopup30')" > < span class = "comment-syntax" > ?< / span > < span class = "popuptext" id = "usagePopup30" > Usage of < span class = "code-font" > < span class = "function-syntax" > World::Inferences::report_inference< / span > < / span > :< br / > < a href = "16-in.html#SP19" > § 19< / a > , < a href = "16-in.html#SP19_3" > § 19.3< / a > , < a href = "16-in.html#SP19_3_1" > § 19.3.1< / a > , < a href = "16-in.html#SP19_3_3" > § 19.3.3< / a > , < a href = "16-in.html#SP19_3_4" > § 19.3.4< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > inference< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > , < / span > < span class = "reserved-syntax" > inference_subject< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > infs< / span > < span class = "plain-syntax" > , < / span > < span class = "reserved-syntax" > char< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > what_happened< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > LOGIF< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > INFERENCES< / span > < span class = "plain-syntax" > , < / span > < span class = "string-syntax" > ":::: %s: $j - $I\n"< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > what_happened< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > infs< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > }< / span >
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< / pre >
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< p class = "commentary firstcommentary" > < a id = "SP21" class = "paragraph-anchor" > < / a > < b > § 21. < / b > And more generally:
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< / p >
< pre class = "displayed-code all-displayed-code code-font" >
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< span class = "reserved-syntax" > void< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > World::Inferences::log_kind< / span > < button class = "popup" onclick = "togglePopup('usagePopup31')" > < span class = "comment-syntax" > ?< / span > < span class = "popuptext" id = "usagePopup31" > Usage of < span class = "code-font" > < span class = "function-syntax" > World::Inferences::log_kind< / span > < / span > :< br / > Core Module - < a href = "1-cm.html#SP5" > § 5< / a > , < a href = "1-cm.html#SP6_6" > § 6.6< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > it< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > switch< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > it< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > case< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > ARBITRARY_RELATION_INF:< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > LOG< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "ARBITRARY_RELATION_INF"< / span > < span class = "plain-syntax" > ); < / span > < span class = "reserved-syntax" > break< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > case< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > PROPERTY_INF:< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > LOG< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "PROPERTY_INF"< / span > < span class = "plain-syntax" > ); < / span > < span class = "reserved-syntax" > break< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > default:< / span > < span class = "plain-syntax" > < / span > < a href = "26-pc.html#SP7" class = "function-link" > < span class = "function-syntax" > Plugins::Call::log_inference_type< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > it< / span > < span class = "plain-syntax" > ); < / span > < span class = "reserved-syntax" > break< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > }< / span >
< span class = "plain-syntax" > }< / span >
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< span class = "reserved-syntax" > void< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > World::Inferences::log< / span > < button class = "popup" onclick = "togglePopup('usagePopup32')" > < span class = "comment-syntax" > ?< / span > < span class = "popuptext" id = "usagePopup32" > Usage of < span class = "code-font" > < span class = "function-syntax" > World::Inferences::log< / span > < / span > :< br / > Core Module - < a href = "1-cm.html#SP5" > § 5< / a > , < a href = "1-cm.html#SP6_6" > § 6.6< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > inference< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > in< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > in< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ) { < / span > < span class = "identifier-syntax" > LOG< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "< null-inference> "< / span > < span class = "plain-syntax" > ); < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > ; }< / span >
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< span class = "plain-syntax" > < / span > < a href = "16-in.html#SP21" class = "function-link" > < span class = "function-syntax" > World::Inferences::log_kind< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > in< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > inference_type< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > LOG< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "-"< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > switch< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > in< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > certainty< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > case< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > IMPOSSIBLE_CE:< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > LOG< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "Impossible "< / span > < span class = "plain-syntax" > ); < / span > < span class = "reserved-syntax" > break< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > case< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > UNLIKELY_CE:< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > LOG< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "Unlikely "< / span > < span class = "plain-syntax" > ); < / span > < span class = "reserved-syntax" > break< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > case< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > UNKNOWN_CE:< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > LOG< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "< No information> "< / span > < span class = "plain-syntax" > ); < / span > < span class = "reserved-syntax" > break< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > case< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > LIKELY_CE:< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > LOG< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "Likely "< / span > < span class = "plain-syntax" > ); < / span > < span class = "reserved-syntax" > break< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > case< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > CERTAIN_CE:< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > LOG< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "Certain "< / span > < span class = "plain-syntax" > ); < / span > < span class = "reserved-syntax" > break< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > default:< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > LOG< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "< unknown-certainty> "< / span > < span class = "plain-syntax" > ); < / span > < span class = "reserved-syntax" > break< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > in< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > inferred_property< / span > < span class = "plain-syntax" > ) < / span > < span class = "identifier-syntax" > LOG< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "(%W)"< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > in< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > inferred_property< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > name< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > in< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > inferred_property_value< / span > < span class = "plain-syntax" > ) < / span > < span class = "identifier-syntax" > LOG< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "-1:$P"< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > in< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > inferred_property_value< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > in< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > infs_ref1< / span > < span class = "plain-syntax" > ) < / span > < span class = "identifier-syntax" > LOG< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "-1:$j"< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > in< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > infs_ref1< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > in< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > infs_ref2< / span > < span class = "plain-syntax" > ) < / span > < span class = "identifier-syntax" > LOG< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "-2:$j"< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > in< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > infs_ref2< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > in< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > spec_ref1< / span > < span class = "plain-syntax" > ) < / span > < span class = "identifier-syntax" > LOG< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "-s1:$P"< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > in< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > spec_ref1< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > in< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > spec_ref2< / span > < span class = "plain-syntax" > ) < / span > < span class = "identifier-syntax" > LOG< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "-s2:$P"< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > in< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > spec_ref2< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > }< / span >
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< / pre >
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< nav role = "progress" > < div class = "progresscontainer" >
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< ul class = "progressbar" > < li class = "progressprev" > < a href = "16-pp.html" > ❮ < / a > < / li > < li class = "progresschapter" > < a href = "P-wtmd.html" > P< / a > < / li > < li class = "progresschapter" > < a href = "1-cm.html" > 1< / a > < / li > < li class = "progresschapter" > < a href = "2-up.html" > 2< / a > < / li > < li class = "progresschapter" > < a href = "3-bv.html" > 3< / a > < / li > < li class = "progresschapter" > < a href = "4-dlr.html" > 4< / a > < / li > < li class = "progresschapter" > < a href = "5-rpt.html" > 5< / a > < / li > < li class = "progresschapter" > < a href = "6-lp.html" > 6< / a > < / li > < li class = "progresschapter" > < a href = "7-am.html" > 7< / a > < / li > < li class = "progresschapter" > < a href = "8-ptu.html" > 8< / a > < / li > < li class = "progresschapter" > < a href = "9-ef.html" > 9< / a > < / li > < li class = "progresschapter" > < a href = "10-its.html" > 10< / a > < / li > < li class = "progresschapter" > < / li > < li class = "progresschapter" > < a href = "12-terr.html" > 12< / a > < / li > < li class = "progresschapter" > < a href = "13-kak.html" > 13< / a > < / li > < li class = "progresschapter" > < a href = "14-sp.html" > 14< / a > < / li > < li class = "progresschapter" > < a href = "15-pr.html" > 15< / a > < / li > < li class = "progresscurrentchapter" > 16< / li > < li class = "progresssection" > < a href = "16-is.html" > is< / a > < / li > < li class = "progresssection" > < a href = "16-kar.html" > kar< / a > < / li > < li class = "progresssection" > < a href = "16-pp.html" > pp< / a > < / li > < li class = "progresscurrent" > in< / li > < li class = "progresssection" > < a href = "16-cmw.html" > cmw< / a > < / li > < li class = "progresssection" > < a href = "16-cmw2.html" > cmw2< / a > < / li > < li class = "progresssection" > < a href = "16-ic.html" > ic< / a > < / li > < li class = "progresschapter" > < a href = "17-tl.html" > 17< / a > < / li > < li class = "progresschapter" > < a href = "18-lc.html" > 18< / a > < / li > < li class = "progresschapter" > < a href = "19-tc.html" > 19< / a > < / li > < li class = "progresschapter" > < a href = "20-eq.html" > 20< / a > < / li > < li class = "progresschapter" > < a href = "21-rl.html" > 21< / a > < / li > < li class = "progresschapter" > < a href = "22-itp.html" > 22< / a > < / li > < li class = "progresschapter" > < a href = "23-ad.html" > 23< / a > < / li > < li class = "progresschapter" > < a href = "24-lv.html" > 24< / a > < / li > < li class = "progresschapter" > < a href = "25-in.html" > 25< / a > < / li > < li class = "progresschapter" > < a href = "26-fc.html" > 26< / a > < / li > < li class = "progresschapter" > < a href = "27-hr.html" > 27< / a > < / li > < li class = "progressnext" > < a href = "16-cmw.html" > ❯ < / a > < / li > < / ul > < / div >
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< / nav > <!-- End of weave -->
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< / main >
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< / body >
< / html >
