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< ul class = "crumbs" > < li > < a href = "../index.html" > Home< / a > < / li > < li > < a href = "../intern.html" > Inter Modules< / a > < / li > < li > < a href = "index.html" > final< / a > < / li > < li > < a href = "index.html#5" > Chapter 5: C< / a > < / li > < li > < b > C Conditions< / b > < / li > < / ul > < / div >
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< p class = "purpose" > Evaluating conditions.< / p >
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< p class = "commentary firstcommentary" > < a id = "SP1" class = "paragraph-anchor" > < / a > < b > § 1. < / b > This section implements the primitives which evaluate conditions. < span class = "extract" > < span class = "extract-syntax" > !propertyvalue< / span > < / span >
might seem a surprising inclusion in the list: as the name suggests, this finds
a property value. But although it is often used in a value context, it's also used
as a condition. For example, if kit code (written in Inform 6 notation) does this:
< / p >
< 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" > obj< / span > < span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > has< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > concealed< / span > < span class = "plain-syntax" > ) ...< / span >
< / pre >
< p class = "commentary" > then the condition amounts to an < span class = "extract" > < span class = "extract-syntax" > inv !propertyvalue< / span > < / span > . Now, since any value can
be used as a condition, this may still not seem to mean that < span class = "extract" > < span class = "extract-syntax" > !propertyvalue< / span > < / span >
belongs here; but consider that it is also legal to write —
< / p >
< 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" > obj< / span > < span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > has< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > concealed< / span > < span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > or< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > scenery< / span > < span class = "plain-syntax" > ) ...< / span >
< / pre >
< p class = "commentary" > Here the < span class = "extract" > < span class = "extract-syntax" > inv !propertyvalue< / span > < / span > involves an < span class = "extract" > < span class = "extract-syntax" > inv !alternative< / span > < / span > in its children,
and handling that requires the mechanism below.
< / 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" > CConditions::invoke_primitive< / 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" > CConditions::invoke_primitive< / span > < / span > :< br / > C Program Control - < a href = "5-cpc.html#SP1" > § 1< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > code_generation< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > gen< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > inter_ti< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > bip< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > inter_tree_node< / 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" > text_stream< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > OUT< / span > < span class = "plain-syntax" > = < / span > < a href = "2-cg.html#SP14" class = "function-link" > < span class = "function-syntax" > CodeGen::current< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > gen< / 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" > bip< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > case< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > NOT_BIP:< / 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 = "constant-syntax" > VNODE_1C< / 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 = "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" > AND_BIP:< / 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 = "constant-syntax" > VNODE_1C< / 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 = "constant-syntax" > VNODE_2C< / 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 = "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" > OR_BIP:< / 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 = "constant-syntax" > VNODE_1C< / 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 = "constant-syntax" > VNODE_2C< / 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 = "reserved-syntax" > break< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > case< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > PROPERTYEXISTS_BIP:< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > C_GEN_DATA< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > objdata< / span > < span class = "plain-syntax" > .< / span > < span class = "element-syntax" > value_ranges_needed< / span > < span class = "plain-syntax" > ) = < / span > < span class = "identifier-syntax" > TRUE< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > C_GEN_DATA< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > objdata< / span > < span class = "plain-syntax" > .< / span > < span class = "element-syntax" > value_property_holders_needed< / 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" > WRITE< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "(i7_provides_gprop(proc, "< / span > < span class = "plain-syntax" > ); < / span > < span class = "constant-syntax" > VNODE_1C< / 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 >
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< span class = "plain-syntax" > < / span > < span class = "constant-syntax" > VNODE_2C< / 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 = "constant-syntax" > VNODE_3C< / 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 >
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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 > < span class = "reserved-syntax" > case< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > EQ_BIP:< / span > < span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > case< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > NE_BIP:< / span > < span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > case< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > GT_BIP:< / span > < span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > case< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > GE_BIP:< / span > < span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > case< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > LT_BIP:< / span > < span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > case< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > LE_BIP:< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > case< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > OFCLASS_BIP:< / span > < span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > case< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > IN_BIP:< / span > < span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > case< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > NOTIN_BIP:< / span >
< span class = "plain-syntax" > < / span > < a href = "5-ccn.html#SP2" class = "function-link" > < span class = "function-syntax" > CConditions::comparison_r< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > gen< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > bip< / 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" > InterTree::first_child< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > P< / span > < span class = "plain-syntax" > ), < / span > < span class = "identifier-syntax" > InterTree::second_child< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > P< / 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" > 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" > PROPERTYVALUE_BIP:< / span >
< span class = "plain-syntax" > < / span > < a href = "5-ccn.html#SP2" class = "function-link" > < span class = "function-syntax" > CConditions::comparison_r< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > gen< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > bip< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > InterTree::first_child< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > P< / span > < span class = "plain-syntax" > ),< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > InterTree::second_child< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > P< / span > < span class = "plain-syntax" > ), < / span > < span class = "identifier-syntax" > InterTree::third_child< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > P< / span > < span class = "plain-syntax" > ), < / span > < span class = "constant-syntax" > 0< / 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 >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > case< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > ALTERNATIVE_BIP:< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > internal_error< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "misplaced !alternative in Inter tree"< / 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 = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > NOT_APPLICABLE< / span > < span class = "plain-syntax" > ;< / span >
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< 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" > FALSE< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
< / pre >
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< p class = "commentary firstcommentary" > < a id = "SP2" class = "paragraph-anchor" > < / a > < b > § 2. < / b > The following recursive mechanism exists because of the need to support
alternative choices in Inter conditions, as here:
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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" > inv< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > !if< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > inv< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > !eq< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > val< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > K_number< / span > < span class = "plain-syntax" > x< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > inv< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > !alternative< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > val< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > K_number< / span > < span class = "plain-syntax" > < / span > < span class = "constant-syntax" > 4< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > val< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > K_number< / span > < span class = "plain-syntax" > < / span > < span class = "constant-syntax" > 8< / span >
< span class = "plain-syntax" > ...< / span >
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< / pre >
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< p class = "commentary" > This is the equivalent of writing < span class = "extract" > < span class = "extract-syntax" > if (x == 4 or 8) ...< / span > < / span > in Inform 6, but C does
not have an < span class = "extract" > < span class = "extract-syntax" > or< / span > < / span > operator like that. We could with care sometimes compile this
as < span class = "extract" > < span class = "extract-syntax" > if ((x == 4) < / span > < / span > < span class = "extract" > < span class = "extract-syntax" > (x == 8))< / span > < / span > , but if evaluating < span class = "extract" > < span class = "extract-syntax" > x< / span > < / span > has side-effects, or is
slow, this will cause problems. Instead we compile < span class = "extract" > < span class = "extract-syntax" > if (t = x, ((t == 4) < / span > < / span > < span class = "extract" > < span class = "extract-syntax" > (t == 8)))< / span > < / span >
where < span class = "extract" > < span class = "extract-syntax" > t< / span > < / span > is temporary storage.
< / p >
< p class = "commentary" > Note that < span class = "extract" > < span class = "extract-syntax" > !ne< / span > < / span > and < span class = "extract" > < span class = "extract-syntax" > !notin< / span > < / span > interpret < span class = "extract" > < span class = "extract-syntax" > !alternative< / span > < / span > in a de Morgan-like way,
so that we compile < span class = "extract" > < span class = "extract-syntax" > if ((x != 4) & & (x != 8))< / span > < / span > rather than < span class = "extract" > < span class = "extract-syntax" > if ((x != 4) < / span > < / span > < span class = "extract" > < span class = "extract-syntax" > (x != 8))< / span > < / span > .
The former is equivalent to negating < span class = "extract" > < span class = "extract-syntax" > !eq< / span > < / span > on the same choices, which is what we want;
the latter would be universally true, which is useless.
< / p >
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< pre class = "displayed-code all-displayed-code code-font" >
2021-11-01 02:07:47 +02:00
< span class = "reserved-syntax" > void< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > CConditions::comparison_r< / 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" > CConditions::comparison_r< / span > < / span > :< br / > < a href = "5-ccn.html#SP1" > § 1< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > code_generation< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > gen< / span > < span class = "plain-syntax" > ,< / span >
2021-10-18 00:55:41 +03:00
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > inter_ti< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > bip< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > inter_tree_node< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > K< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > inter_tree_node< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > X< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > inter_tree_node< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > Y< / span > < span class = "plain-syntax" > , < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > depth< / span > < span class = "plain-syntax" > ) {< / span >
2022-03-14 00:08:41 +02:00
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > Inode::is< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > Y< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > INV_IST< / span > < span class = "plain-syntax" > )) {< / span >
2022-03-13 13:28:33 +02:00
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > InvInstruction::method< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > Y< / span > < span class = "plain-syntax" > ) == < / span > < span class = "identifier-syntax" > PRIMITIVE_INVMETH< / span > < span class = "plain-syntax" > ) {< / span >
2022-03-13 01:44:46 +02:00
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > inter_symbol< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > prim< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > InvInstruction::primitive< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > Y< / span > < span class = "plain-syntax" > );< / span >
2022-01-14 12:56:42 +02:00
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > inter_ti< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > ybip< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > Primitives::to_BIP< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > gen< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > from< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > prim< / span > < span class = "plain-syntax" > );< / span >
2021-08-13 01:31:23 +03:00
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > ybip< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > ALTERNATIVE_BIP< / span > < span class = "plain-syntax" > ) {< / span >
2022-03-20 15:41:13 +02:00
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > text_stream< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > OUT< / span > < span class = "plain-syntax" > = < / span > < a href = "2-cg.html#SP14" class = "function-link" > < span class = "function-syntax" > CodeGen::current< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > gen< / span > < span class = "plain-syntax" > );< / span >
2021-11-01 02:07:47 +02:00
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > depth< / 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" > WRITE< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "(proc-> state.tmp[0] = "< / span > < span class = "plain-syntax" > ); < / span > < a href = "2-vnl.html#SP3" class = "function-link" > < span class = "function-syntax" > Vanilla::node< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > gen< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > X< / 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 >
2021-10-18 00:55:41 +03:00
< span class = "plain-syntax" > < / span > < a href = "5-ccn.html#SP2" class = "function-link" > < span class = "function-syntax" > CConditions::comparison_r< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > gen< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > bip< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > K< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > InterTree::first_child< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > Y< / span > < span class = "plain-syntax" > ), < / span > < span class = "identifier-syntax" > depth< / span > < span class = "plain-syntax" > +1);< / span >
2021-10-15 01:53:44 +03:00
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > ((< / span > < span class = "identifier-syntax" > bip< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > NE_BIP< / span > < span class = "plain-syntax" > ) || (< / span > < span class = "identifier-syntax" > bip< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > NOTIN_BIP< / 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 >
2021-08-19 01:59:31 +03:00
< 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 >
2021-10-18 00:55:41 +03:00
< span class = "plain-syntax" > < / span > < a href = "5-ccn.html#SP2" class = "function-link" > < span class = "function-syntax" > CConditions::comparison_r< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > gen< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > bip< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > K< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > InterTree::second_child< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > Y< / span > < span class = "plain-syntax" > ), < / span > < span class = "identifier-syntax" > depth< / span > < span class = "plain-syntax" > +1);< / span >
2021-08-13 01:31:23 +03:00
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > depth< / 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" > "))"< / 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 >
< span class = "plain-syntax" > }< / span >
2022-03-20 15:41:13 +02:00
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > text_stream< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > OUT< / span > < span class = "plain-syntax" > = < / span > < a href = "2-cg.html#SP14" class = "function-link" > < span class = "function-syntax" > CodeGen::current< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > gen< / span > < span class = "plain-syntax" > );< / span >
2021-08-13 01:31:23 +03:00
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > positive< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > TRUE< / span > < span class = "plain-syntax" > ;< / span >
2021-11-01 02:07:47 +02:00
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > text_stream< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > test_fn< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > , *< / span > < span class = "identifier-syntax" > test_operator< / 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" > switch< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > bip< / 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" > OFCLASS_BIP:< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > positive< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > TRUE< / span > < span class = "plain-syntax" > ; < / span > < span class = "identifier-syntax" > test_fn< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > I< / span > < span class = "string-syntax" > "i7_ofclass"< / 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" > IN_BIP:< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > positive< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > TRUE< / span > < span class = "plain-syntax" > ; < / span > < span class = "identifier-syntax" > test_fn< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > I< / span > < span class = "string-syntax" > "i7_in"< / 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" > NOTIN_BIP:< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > positive< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > FALSE< / span > < span class = "plain-syntax" > ; < / span > < span class = "identifier-syntax" > test_fn< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > I< / span > < span class = "string-syntax" > "i7_in"< / 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" > EQ_BIP:< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > test_operator< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > I< / span > < span class = "string-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 = "reserved-syntax" > case< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > NE_BIP:< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > test_operator< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > I< / span > < span class = "string-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 = "reserved-syntax" > case< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > GT_BIP:< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > test_operator< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > I< / span > < span class = "string-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 = "reserved-syntax" > case< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > GE_BIP:< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > test_operator< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > I< / span > < span class = "string-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 = "reserved-syntax" > case< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > LT_BIP:< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > test_operator< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > I< / span > < span class = "string-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 = "reserved-syntax" > case< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > LE_BIP:< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > test_operator< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > I< / span > < span class = "string-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 = "reserved-syntax" > case< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > PROPERTYVALUE_BIP:< / 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" > internal_error< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "unsupported condition"< / 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" > bip< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > PROPERTYVALUE_BIP< / span > < span class = "plain-syntax" > ) {< / span >
2021-11-08 12:16:46 +02:00
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > WRITE< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "(i7_read_gprop_value(proc, "< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > test_fn< / span > < span class = "plain-syntax" > );< / span >
2021-11-01 02:07:47 +02:00
< span class = "plain-syntax" > < / span > < a href = "2-vnl.html#SP3" class = "function-link" > < span class = "function-syntax" > Vanilla::node< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > gen< / 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" > ", "< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "named-paragraph-container code-font" > < a href = "5-ccn.html#SP2_1" class = "named-paragraph-link" > < span class = "named-paragraph" > Compile first comparand< / span > < span class = "named-paragraph-number" > 2.1< / span > < / a > < / 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 = "named-paragraph-container code-font" > < a href = "5-ccn.html#SP2_2" class = "named-paragraph-link" > < span class = "named-paragraph" > Compile second comparand< / span > < span class = "named-paragraph-number" > 2.2< / span > < / a > < / 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 = "reserved-syntax" > else< / span > < span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > Str::len< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > test_fn< / span > < span class = "plain-syntax" > ) > < / span > < span class = "constant-syntax" > 0< / span > < span class = "plain-syntax" > ) {< / span >
2021-09-08 01:28:19 +03:00
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > WRITE< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "(%S(proc, "< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > test_fn< / span > < span class = "plain-syntax" > );< / span >
2021-11-01 02:07:47 +02:00
< span class = "plain-syntax" > < / span > < span class = "named-paragraph-container code-font" > < a href = "5-ccn.html#SP2_1" class = "named-paragraph-link" > < span class = "named-paragraph" > Compile first comparand< / span > < span class = "named-paragraph-number" > 2.1< / span > < / a > < / span > < span class = "plain-syntax" > ;< / span >
2021-08-13 01:31:23 +03:00
< 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 >
2021-11-01 02:07:47 +02:00
< span class = "plain-syntax" > < / span > < span class = "named-paragraph-container code-font" > < a href = "5-ccn.html#SP2_2" class = "named-paragraph-link" > < span class = "named-paragraph" > Compile second comparand< / span > < span class = "named-paragraph-number" > 2.2< / span > < / a > < / span > < span class = "plain-syntax" > ;< / span >
2021-08-13 01:31:23 +03:00
< 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" > positive< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > FALSE< / span > < span class = "plain-syntax" > ) < / span > < span class = "identifier-syntax" > WRITE< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > " == 0"< / 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 = "reserved-syntax" > else< / 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" > "("< / span > < span class = "plain-syntax" > ); < / span > < span class = "named-paragraph-container code-font" > < a href = "5-ccn.html#SP2_1" class = "named-paragraph-link" > < span class = "named-paragraph" > Compile first comparand< / span > < span class = "named-paragraph-number" > 2.1< / span > < / a > < / 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" > " %S "< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > test_operator< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "named-paragraph-container code-font" > < a href = "5-ccn.html#SP2_2" class = "named-paragraph-link" > < span class = "named-paragraph" > Compile second comparand< / span > < span class = "named-paragraph-number" > 2.2< / span > < / a > < / 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 >
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< span class = "plain-syntax" > }< / span >
< span class = "plain-syntax" > }< / span >
< / pre >
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< p class = "commentary firstcommentary" > < a id = "SP2_1" class = "paragraph-anchor" > < / a > < b > § 2.1. < / b > < span class = "named-paragraph-container code-font" > < span class = "named-paragraph-defn" > Compile first comparand< / span > < span class = "named-paragraph-number" > 2.1< / 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" > X< / span > < span class = "plain-syntax" > ) < / span > < a href = "2-vnl.html#SP3" class = "function-link" > < span class = "function-syntax" > Vanilla::node< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > gen< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > X< / 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" > "proc-> state.tmp[0]"< / 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 = "5-ccn.html#SP2" > § 2< / a > (three times).< / li > < / ul >
< p class = "commentary firstcommentary" > < a id = "SP2_2" class = "paragraph-anchor" > < / a > < b > § 2.2. < / b > < span class = "named-paragraph-container code-font" > < span class = "named-paragraph-defn" > Compile second comparand< / span > < span class = "named-paragraph-number" > 2.2< / 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 = "2-vnl.html#SP3" class = "function-link" > < span class = "function-syntax" > Vanilla::node< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > gen< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > Y< / 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 = "5-ccn.html#SP2" > § 2< / a > (three times).< / li > < / ul >
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< nav role = "progress" > < div class = "progresscontainer" >
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< / nav > <!-- End of weave -->
< / main >
< / body >
< / html >