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< ul class = "crumbs" > < li > < a href = "../index.html" > Home< / a > < / li > < li > < a href = "../compiler.html" > Inform7< / a > < / li > < li > < a href = "index.html" > runtime< / a > < / li > < li > < a href = "index.html#4" > Chapter 4: Compilation Utilities< / a > < / li > < li > < b > Equations Support< / b > < / li > < / ul > < / div >
< p class = "purpose" > To compile unique identifiers for equations.< / p >
< p class = "commentary firstcommentary" > < a id = "SP1" class = "paragraph-anchor" > < / a > < b > § 1. < / b > Each equation has a distinct runtime identifier, which in fact is a stub
function returning false; but because these functions are all different,
they provide values different from each other and from all other functions.
< / 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" > RTEquations::new_identifier< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > equation< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > eqn< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > package_request< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > PR< / span > < span class = "plain-syntax" > = < / span > < a href = "2-hrr.html#SP4" class = "function-link" > < span class = "function-syntax" > Hierarchy::local_package< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "constant-syntax" > EQUATIONS_HAP< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > eqn< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > eqn_iname< / span > < span class = "plain-syntax" > = < / span > < a href = "2-hrr.html#SP4" class = "function-link" > < span class = "function-syntax" > Hierarchy::make_iname_in< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "constant-syntax" > SOLVE_FN_HL< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > PR< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > }< / span >
< span class = "identifier-syntax" > inter_name< / span > < span class = "plain-syntax" > *< / span > < span class = "function-syntax" > RTEquations::identifier< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > equation< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > eqn< / 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" > eqn< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > eqn_iname< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
< span class = "reserved-syntax" > void< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > RTEquations::compile_identifiers< / 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" > equation< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > eqn< / 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" > eqn< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > equation< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > packaging_state< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > save< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > Functions::begin< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > eqn< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > eqn_iname< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > Produce::rfalse< / span > < span class = "plain-syntax" > (< / span > < a href = "2-emt.html#SP2" class = "function-link" > < span class = "function-syntax" > Emit::tree< / span > < / a > < span class = "plain-syntax" > ());< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > Functions::end< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > save< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > }< / span >
< span class = "plain-syntax" > }< / span >
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