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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
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<title>C Namespace</title>
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<!--Weave of 'C Namespace' generated by Inweb-->
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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 Namespace</b></li></ul></div>
<p class="purpose">How identifiers are used in the C code we generate.</p>
<p class="commentary firstcommentary"><a id="SP1" class="paragraph-anchor"></a><b>&#167;1. </b></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">CNamespace::initialise</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">CNamespace::initialise</span></span>:<br/>Final C - <a href="5-fnc.html#SP1">&#167;1</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">code_generator</span><span class="plain-syntax"> *</span><span class="identifier-syntax">gtr</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">METHOD_ADD</span><span class="plain-syntax">(</span><span class="identifier-syntax">gtr</span><span class="plain-syntax">, </span><span class="constant-syntax">MANGLE_IDENTIFIER_MTID</span><span class="plain-syntax">, </span><a href="5-cnm.html#SP3" class="function-link"><span class="function-syntax">CNamespace::mangle</span></a><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">METHOD_ADD</span><span class="plain-syntax">(</span><span class="identifier-syntax">gtr</span><span class="plain-syntax">, </span><span class="constant-syntax">DECLARE_CONSTANT_MTID</span><span class="plain-syntax">, </span><a href="5-cnm.html#SP7" class="function-link"><span class="function-syntax">CNamespace::declare_constant</span></a><span class="plain-syntax">);</span>
<span class="plain-syntax">}</span>
</pre>
<p class="commentary firstcommentary"><a id="SP2" class="paragraph-anchor"></a><b>&#167;2. </b>A fundamental decision we have to make here is what namespace of identifiers
we will use in the code we generate. If an Inter function is called <span class="extract"><span class="extract-syntax">example</span></span>,
we are going to need to compile that to some C function: what should this be
called?
</p>
<p class="commentary">It seems unwise to call it just <span class="extract"><span class="extract-syntax">example</span></span>, that is, to compile Inter identifiers
directly into C ones. What if the Inter code used the identifier <span class="extract"><span class="extract-syntax">printf</span></span> for
something, for example, or indeed the identifiers <span class="extract"><span class="extract-syntax">struct</span></span> or <span class="extract"><span class="extract-syntax">unsigned</span></span>? Moreover,
unlike the Inform 6 generator, this one is expecting the compile code which will
only be part of a larger program. We want to avoid hogging the entire namespace;
in fact, we want our code to use only names beginning <span class="extract"><span class="extract-syntax">i7_</span></span> or <span class="extract"><span class="extract-syntax">glulx_</span></span>, with
the single exception of <span class="extract"><span class="extract-syntax">main</span></span>, and even that only when <span class="extract"><span class="extract-syntax">main</span></span> is compiled.
</p>
<p class="commentary firstcommentary"><a id="SP3" class="paragraph-anchor"></a><b>&#167;3. </b>To that end, we "mangle" identifier names, and this is how. Examples:
</p>
<pre class="displayed-code all-displayed-code code-font">
<span class="plain-syntax"> example i7_mgl_example</span>
<span class="plain-syntax"> ##Attack i7_ss_Attack</span>
<span class="plain-syntax"> #g$self i7_ss_gself</span>
</pre>
<p class="commentary">This is not quite a faithful scheme because, say, <span class="extract"><span class="extract-syntax">#a#a</span></span> and <span class="extract"><span class="extract-syntax">#aa</span></span> both mangle
to the same result, <span class="extract"><span class="extract-syntax">i7_ss_aa</span></span>. But <span class="extract"><span class="extract-syntax">#</span></span> and <span class="extract"><span class="extract-syntax">$</span></span> characters are used extremely
sparingly in Inter, and these can never arise.
</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">CNamespace::mangle</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">CNamespace::mangle</span></span>:<br/><a href="5-cnm.html#SP1">&#167;1</a>, <a href="5-cnm.html#SP7">&#167;7</a><br/>Final C - <a href="5-fnc.html#SP5_4">&#167;5.4</a><br/>C Memory Model - <a href="5-cmm.html#SP4_2_2">&#167;4.2.2</a>, <a href="5-cmm.html#SP4_2_3">&#167;4.2.3</a>, <a href="5-cmm.html#SP6">&#167;6</a><br/>C Literals - <a href="5-clt.html#SP8">&#167;8</a>, <a href="5-clt.html#SP10">&#167;10</a><br/>C Function Model - <a href="5-cfm.html#SP4">&#167;4</a>, <a href="5-cfm.html#SP6">&#167;6</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">code_generator</span><span class="plain-syntax"> *</span><span class="identifier-syntax">gtr</span><span class="plain-syntax">, </span><span class="identifier-syntax">OUTPUT_STREAM</span><span class="plain-syntax">, </span><span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">identifier</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">Str::get_first_char</span><span class="plain-syntax">(</span><span class="identifier-syntax">identifier</span><span class="plain-syntax">) == </span><span class="character-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">"i7_ss_"</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">LOOP_THROUGH_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">pos</span><span class="plain-syntax">, </span><span class="identifier-syntax">identifier</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">Str::get</span><span class="plain-syntax">(</span><span class="identifier-syntax">pos</span><span class="plain-syntax">) != </span><span class="character-syntax">'#'</span><span class="plain-syntax">) &amp;&amp; (</span><span class="identifier-syntax">Str::get</span><span class="plain-syntax">(</span><span class="identifier-syntax">pos</span><span class="plain-syntax">) != </span><span class="character-syntax">'$'</span><span class="plain-syntax">))</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">PUT</span><span class="plain-syntax">(</span><span class="identifier-syntax">Str::get</span><span class="plain-syntax">(</span><span class="identifier-syntax">pos</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">"i7_mgl_%S"</span><span class="plain-syntax">, </span><span class="identifier-syntax">identifier</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">CNamespace::mangle_with</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">CNamespace::mangle_with</span></span>:<br/>C Function Model - <a href="5-cfm.html#SP3">&#167;3</a>, <a href="5-cfm.html#SP7">&#167;7</a>, <a href="5-cfm.html#SP13">&#167;13</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">code_generator</span><span class="plain-syntax"> *</span><span class="identifier-syntax">gtr</span><span class="plain-syntax">, </span><span class="identifier-syntax">OUTPUT_STREAM</span><span class="plain-syntax">, </span><span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">identifier</span><span class="plain-syntax">,</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">modifier</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">"i7_%S_%S"</span><span class="plain-syntax">, </span><span class="identifier-syntax">modifier</span><span class="plain-syntax">, </span><span class="identifier-syntax">identifier</span><span class="plain-syntax">);</span>
<span class="plain-syntax">}</span>
</pre>
<p class="commentary firstcommentary"><a id="SP4" class="paragraph-anchor"></a><b>&#167;4. </b>Opcode names are also mangled. Each assembly language opcode will use a
corresponding C function, whose name is mangled from that of the opcode. For
example:
</p>
<pre class="displayed-code all-displayed-code code-font">
<span class="plain-syntax"> @jz i7_opcode_jz</span>
<span class="plain-syntax"> @streamnum i7_opcode_streamnum</span>
</pre>
<pre class="displayed-code all-displayed-code code-font">
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">CNamespace::mangle_opcode</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">CNamespace::mangle_opcode</span></span>:<br/>C Assembly - <a href="5-cas.html#SP5_2">&#167;5.2</a>, <a href="5-cas.html#SP6_3">&#167;6.3</a></span></button><span class="plain-syntax">(</span><span class="identifier-syntax">OUTPUT_STREAM</span><span class="plain-syntax">, </span><span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">opcode</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">"i7_opcode_"</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">LOOP_THROUGH_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">pos</span><span class="plain-syntax">, </span><span class="identifier-syntax">opcode</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">Str::get</span><span class="plain-syntax">(</span><span class="identifier-syntax">pos</span><span class="plain-syntax">) != </span><span class="character-syntax">'@'</span><span class="plain-syntax">)</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">PUT</span><span class="plain-syntax">(</span><span class="identifier-syntax">Str::get</span><span class="plain-syntax">(</span><span class="identifier-syntax">pos</span><span class="plain-syntax">));</span>
<span class="plain-syntax">}</span>
</pre>
<p class="commentary firstcommentary"><a id="SP5" class="paragraph-anchor"></a><b>&#167;5. </b>Global variable names are similarly mangled:
</p>
<pre class="displayed-code all-displayed-code code-font">
<span class="plain-syntax"> howmayyou i7_var_howmayyou</span>
</pre>
<pre class="displayed-code all-displayed-code code-font">
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">CNamespace::mangle_variable</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">CNamespace::mangle_variable</span></span>:<br/>C Global Variables - <a href="5-cgv.html#SP3_1">&#167;3.1</a>, <a href="5-cgv.html#SP3_2">&#167;3.2</a>, <a href="5-cgv.html#SP5">&#167;5</a></span></button><span class="plain-syntax">(</span><span class="identifier-syntax">OUTPUT_STREAM</span><span class="plain-syntax">, </span><span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">var</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">"i7_var_%S"</span><span class="plain-syntax">, </span><span class="identifier-syntax">var</span><span class="plain-syntax">);</span>
<span class="plain-syntax">}</span>
</pre>
<p class="commentary firstcommentary"><a id="SP6" class="paragraph-anchor"></a><b>&#167;6. </b>Local variable names have to be handled slightly differently. This is because
Inter frequently makes use of local variables whose identifiers are also used
for some global construct. Of course, C also allows for this: for example &mdash;
</p>
<pre class="displayed-code all-displayed-code code-font">
<span class="plain-syntax"> </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">xerxes</span><span class="plain-syntax"> = </span><span class="constant-syntax">1</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="identifier-syntax">govern_Sophene</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">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">xerxes</span><span class="plain-syntax"> = </span><span class="constant-syntax">2</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">printf</span><span class="plain-syntax">(</span><span class="string-syntax">"%d\n"</span><span class="plain-syntax">, </span><span class="identifier-syntax">xerxes</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> }</span>
</pre>
<p class="commentary">...is legal, and prints 2 when the function is called. So at first sight, there's
no problem giving a local variable the same name as some global construct.
</p>
<p class="commentary">But that does not work if the global definition is made by the C preprocessor
rather than its syntax analyser. Consider:
</p>
<pre class="displayed-code all-displayed-code code-font">
<span class="plain-syntax"> #</span><span class="identifier-syntax">define</span><span class="plain-syntax"> </span><span class="identifier-syntax">xerxes</span><span class="plain-syntax"> </span><span class="constant-syntax">1</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="identifier-syntax">govern_Sophene</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">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">xerxes</span><span class="plain-syntax"> = </span><span class="constant-syntax">2</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">printf</span><span class="plain-syntax">(</span><span class="string-syntax">"%d\n"</span><span class="plain-syntax">, </span><span class="identifier-syntax">xerxes</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> }</span>
</pre>
<p class="commentary">This throws an error message: <span class="extract"><span class="extract-syntax">int xerxes = 2;</span></span> then reads as <span class="extract"><span class="extract-syntax">int 1 = 2;</span></span>. And
since some of our Inter constructs will indeed result in <span class="extract"><span class="extract-syntax">#define</span></span>d values
rather than named C variables, we cannot allow a local variable name to coincide
with the name of anything else (after mangling).
</p>
<p class="commentary">We avoid this by changing the pre-mangled identifiers for all local variables
to begin with <span class="extract"><span class="extract-syntax">local_</span></span>:
</p>
<pre class="displayed-code all-displayed-code code-font">
<span class="plain-syntax"> original translation mangled translation</span>
<span class="plain-syntax"> "xerxes" "local_xerxes" "i7_mgl_local_xerxes"</span>
</pre>
<p class="commentary">This is not an elegant trick, but it works nicely enough.
</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">CNamespace::fix_locals</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">CNamespace::fix_locals</span></span>:<br/>Final C - <a href="5-fnc.html#SP5">&#167;5</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="plain-syntax"> </span><span class="identifier-syntax">InterTree::traverse</span><span class="plain-syntax">(</span><span class="identifier-syntax">gen</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">from</span><span class="plain-syntax">, </span><a href="5-cnm.html#SP6" class="function-link"><span class="function-syntax">CNamespace::sweep_for_locals</span></a><span class="plain-syntax">, </span><span class="identifier-syntax">gen</span><span class="plain-syntax">, </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">, </span><span class="identifier-syntax">LOCAL_IST</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">CNamespace::sweep_for_locals</span><span class="plain-syntax">(</span><span class="identifier-syntax">inter_tree</span><span class="plain-syntax"> *</span><span class="identifier-syntax">I</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><span class="reserved-syntax">void</span><span class="plain-syntax"> *</span><span class="identifier-syntax">state</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">inter_symbol</span><span class="plain-syntax"> *</span><span class="identifier-syntax">var_name</span><span class="plain-syntax"> = </span><span class="identifier-syntax">LocalInstruction::variable</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">TEMPORARY_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">T</span><span class="plain-syntax">)</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE_TO</span><span class="plain-syntax">(</span><span class="identifier-syntax">T</span><span class="plain-syntax">, </span><span class="string-syntax">"local_%S"</span><span class="plain-syntax">, </span><span class="identifier-syntax">InterSymbol::identifier</span><span class="plain-syntax">(</span><span class="identifier-syntax">var_name</span><span class="plain-syntax">));</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">InterSymbol::set_translate</span><span class="plain-syntax">(</span><span class="identifier-syntax">var_name</span><span class="plain-syntax">, </span><span class="identifier-syntax">T</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">DISCARD_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">T</span><span class="plain-syntax">)</span>
<span class="plain-syntax">}</span>
</pre>
<p class="commentary firstcommentary"><a id="SP7" class="paragraph-anchor"></a><b>&#167;7. </b>Constants in Inter are indeed directly converted to <span class="extract"><span class="extract-syntax">#define</span></span>d constants in C,
but with their names of course mangled.
</p>
<p class="commentary">For the reason why <span class="extract"><span class="extract-syntax">Serial</span></span> and <span class="extract"><span class="extract-syntax">Release</span></span> are placed higher-up in the file, see
<a href="5-cmm.html" class="internal">C Memory Model</a>.
</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">CNamespace::declare_constant</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">CNamespace::declare_constant</span></span>:<br/><a href="5-cnm.html#SP1">&#167;1</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">code_generator</span><span class="plain-syntax"> *</span><span class="identifier-syntax">gtr</span><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="plain-syntax"> </span><span class="identifier-syntax">inter_symbol</span><span class="plain-syntax"> *</span><span class="identifier-syntax">const_s</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">form</span><span class="plain-syntax">, </span><span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">val</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">name</span><span class="plain-syntax"> = </span><span class="identifier-syntax">InterSymbol::trans</span><span class="plain-syntax">(</span><span class="identifier-syntax">const_s</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">seg</span><span class="plain-syntax"> = </span><span class="constant-syntax">c_constants_I7CGS</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">Str::eq</span><span class="plain-syntax">(</span><span class="identifier-syntax">name</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"Serial"</span><span class="plain-syntax">)) </span><span class="identifier-syntax">seg</span><span class="plain-syntax"> = </span><span class="constant-syntax">c_ids_and_maxima_I7CGS</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">Str::eq</span><span class="plain-syntax">(</span><span class="identifier-syntax">name</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"Release"</span><span class="plain-syntax">)) </span><span class="identifier-syntax">seg</span><span class="plain-syntax"> = </span><span class="constant-syntax">c_ids_and_maxima_I7CGS</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">Str::eq</span><span class="plain-syntax">(</span><span class="identifier-syntax">name</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"BASICINFORMKIT"</span><span class="plain-syntax">)) </span><span class="identifier-syntax">seg</span><span class="plain-syntax"> = </span><span class="constant-syntax">c_ids_and_maxima_I7CGS</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">Str::eq</span><span class="plain-syntax">(</span><span class="identifier-syntax">name</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"DICT_WORD_SIZE"</span><span class="plain-syntax">)) </span><span class="identifier-syntax">seg</span><span class="plain-syntax"> = </span><span class="constant-syntax">c_ids_and_maxima_I7CGS</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">segmentation_pos</span><span class="plain-syntax"> </span><span class="identifier-syntax">saved</span><span class="plain-syntax"> = </span><a href="2-cg.html#SP12" class="function-link"><span class="function-syntax">CodeGen::select_layered</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">gen</span><span class="plain-syntax">, </span><span class="identifier-syntax">seg</span><span class="plain-syntax">,</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">ConstantInstruction::constant_depth</span><span class="plain-syntax">(</span><span class="identifier-syntax">const_s</span><span class="plain-syntax">));</span>
<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>
<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">"#define "</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="5-cnm.html#SP3" class="function-link"><span class="function-syntax">CNamespace::mangle</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">gtr</span><span class="plain-syntax">, </span><span class="identifier-syntax">OUT</span><span class="plain-syntax">, </span><span class="identifier-syntax">name</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><a href="2-vc.html#SP2" class="function-link"><span class="function-syntax">VanillaConstants::definition_value</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">gen</span><span class="plain-syntax">, </span><span class="identifier-syntax">form</span><span class="plain-syntax">, </span><span class="identifier-syntax">const_s</span><span class="plain-syntax">, </span><span class="identifier-syntax">val</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">"\n"</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="2-cg.html#SP12" class="function-link"><span class="function-syntax">CodeGen::deselect</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">gen</span><span class="plain-syntax">, </span><span class="identifier-syntax">saved</span><span class="plain-syntax">);</span>
<span class="plain-syntax">}</span>
</pre>
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