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<!-- Weave of 'Tree Location Lists' generated by Inweb -->
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< ul class = "crumbs" > < li > < a href = "../index.html" > Home< / a > < / li > < li > < a href = "../compiler.html" > Inter Modules< / a > < / li > < li > < a href = "index.html" > bytecode< / a > < / li > < li > < a href = "index.html#2" > Chapter 2: Interoperability< / a > < / li > < li > < b > Tree Location Lists< / b > < / li > < / ul > < / div >
< p class = "purpose" > Utility functions for keeping flexible-sized arrays of locations in a tree of Inter code.< / p >
< p class = "commentary firstcommentary" > < a id = "SP1" class = "paragraph-anchor" > < / a > < b > § 1. < / b > Unlike linked lists, these are accessible in O(1) time, and can easily be
sorted by index.
< / p >
< 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" > inter_tree_location_list< / 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" > list_extent< / 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" > list_used< / 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" > itl_entry< / 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 = "identifier-syntax" > CLASS_DEFINITION< / span >
< span class = "plain-syntax" > } < / span > < span class = "reserved-syntax" > inter_tree_location_list< / span > < span class = "plain-syntax" > ;< / span >
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< 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" > itl_entry< / 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" > sort_key< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > struct< / span > < span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > inter_tree_node< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > node< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > } < / span > < span class = "reserved-syntax" > itl_entry< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "reserved-syntax" > inter_tree_location_list< / span > < span class = "plain-syntax" > *< / span > < span class = "function-syntax" > TreeLists::new< / span > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > void< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > inter_tree_location_list< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > NL< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > CREATE< / span > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > inter_tree_location_list< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > NL< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > list_extent< / 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" > NL< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > list_used< / 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" > NL< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > list< / 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" > NL< / 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" > TreeLists::len< / span > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > inter_tree_location_list< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > NL< / 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" > NL< / 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 inter_tree_location_list"< / 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" > NL< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > list_used< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
< / pre >
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< ul class = "endnotetexts" > < li > The structure inter_tree_location_list is private to this section.< / li > < li > The structure itl_entry is private to this section.< / li > < / ul >
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< p class = "commentary firstcommentary" > < a id = "SP2" class = "paragraph-anchor" > < / a > < b > § 2. < / b > The capacity quadruples each time it is exhausted.
< / p >
< pre class = "displayed-code all-displayed-code code-font" >
< span class = "reserved-syntax" > void< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > TreeLists::add< / span > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > inter_tree_location_list< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > NL< / span > < span class = "plain-syntax" > , < / span > < span class = "reserved-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 = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > NL< / 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 inter_tree_location_list"< / 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" > NL< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > list_extent< / 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" > NL< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > list_extent< / span > < span class = "plain-syntax" > = < / span > < span class = "constant-syntax" > 256< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > NL< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > list< / span > < span class = "plain-syntax" > = (< / span > < span class = "reserved-syntax" > itl_entry< / span > < span class = "plain-syntax" > *)< / span >
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< span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > Memory::calloc< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > NL< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > list_extent< / span > < span class = "plain-syntax" > ,< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > sizeof< / span > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > itl_entry< / span > < span class = "plain-syntax" > ), < / span > < span class = "constant-syntax" > TREE_LIST_MREASON< / span > < span class = "plain-syntax" > ));< / span >
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< 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" > NL< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > list_used< / span > < span class = "plain-syntax" > > = < / span > < span class = "identifier-syntax" > NL< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > list_extent< / 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" > old_extent< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > NL< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > list_extent< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > NL< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > list_extent< / span > < span class = "plain-syntax" > *= < / span > < span class = "constant-syntax" > 4< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > itl_entry< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > new_list< / span > < span class = "plain-syntax" > = (< / span > < span class = "reserved-syntax" > itl_entry< / span > < span class = "plain-syntax" > *)< / span >
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< span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > Memory::calloc< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > NL< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > list_extent< / span > < span class = "plain-syntax" > ,< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > sizeof< / span > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > itl_entry< / span > < span class = "plain-syntax" > ), < / span > < span class = "constant-syntax" > TREE_LIST_MREASON< / 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 = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > =0; < / span > < span class = "identifier-syntax" > i< / span > < span class = "function-syntax" > < NL-> < / span > < span class = "element-syntax" > list_used< / span > < span class = "plain-syntax" > ; < / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > ++)< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > new_list< / span > < span class = "plain-syntax" > [< / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > ] = < / span > < span class = "identifier-syntax" > NL< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > list< / span > < span class = "plain-syntax" > [< / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > ];< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > Memory::I7_free< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > NL< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > list< / span > < span class = "plain-syntax" > , < / span > < span class = "constant-syntax" > TREE_LIST_MREASON< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > old_extent< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > NL< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > list< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > new_list< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > NL< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > list< / span > < span class = "plain-syntax" > [< / span > < span class = "identifier-syntax" > NL< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > list_used< / span > < span class = "plain-syntax" > ].< / span > < span class = "element-syntax" > sort_key< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > NL< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > list_used< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > NL< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > list< / span > < span class = "plain-syntax" > [< / span > < span class = "identifier-syntax" > NL< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > list_used< / span > < span class = "plain-syntax" > ++].< / span > < span class = "element-syntax" > 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 = "reserved-syntax" > void< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > TreeLists::sort< / span > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > inter_tree_location_list< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > NL< / span > < span class = "plain-syntax" > , < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > (*< / span > < span class = "identifier-syntax" > cmp< / span > < span class = "plain-syntax" > )(< / span > < span class = "reserved-syntax" > const< / span > < span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > void< / span > < span class = "plain-syntax" > *, < / span > < span class = "reserved-syntax" > const< / span > < 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 = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > NL< / 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 inter_tree_location_list"< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > qsort< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > NL< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > list< / span > < span class = "plain-syntax" > , (< / span > < span class = "identifier-syntax" > size_t< / span > < span class = "plain-syntax" > ) < / span > < span class = "identifier-syntax" > NL< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > list_used< / span > < span class = "plain-syntax" > , < / span > < span class = "reserved-syntax" > sizeof< / span > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > itl_entry< / span > < span class = "plain-syntax" > ), < / span > < span class = "identifier-syntax" > cmp< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > }< / span >
< / pre >
< nav role = "progress" > < div class = "progresscontainer" >
< ul class = "progressbar" > < li class = "progressprev" > < a href = "2-in.html" > ❮ < / a > < / li > < li class = "progresschapter" > < a href = "P-wtmd.html" > P< / a > < / li > < li class = "progresschapter" > < a href = "1-bm.html" > 1< / a > < / li > < li class = "progresscurrentchapter" > 2< / li > < li class = "progresssection" > < a href = "2-it.html" > it< / a > < / li > < li class = "progresssection" > < a href = "2-bkm.html" > bkm< / a > < / li > < li class = "progresssection" > < a href = "2-in.html" > in< / a > < / li > < li class = "progresscurrent" > tll< / li > < li class = "progresssection" > < a href = "2-tw.html" > tw< / a > < / li > < li class = "progresssection" > < a href = "2-inl.html" > inl< / a > < / li > < li class = "progresssection" > < a href = "2-st.html" > st< / a > < / li > < li class = "progresssection" > < a href = "2-pck.html" > pck< / a > < / li > < li class = "progresssection" > < a href = "2-sym.html" > sym< / a > < / li > < li class = "progresssection" > < a href = "2-ann.html" > ann< / a > < / li > < li class = "progresssection" > < a href = "2-cnn.html" > cnn< / a > < / li > < li class = "progresssection" > < a href = "2-trn.html" > trn< / a > < / li > < li class = "progresschapter" > < a href = "3-ca.html" > 3< / a > < / li > < li class = "progresschapter" > < a href = "4-tnc.html" > 4< / a > < / li > < li class = "progresschapter" > < a href = "5-tlc.html" > 5< / a > < / li > < li class = "progressnext" > < a href = "2-tw.html" > ❯ < / a > < / li > < / ul > < / div >
< / nav > <!-- End of weave -->
< / main >
< / body >
< / html >