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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title>Resolving Conditional Compilation</title>
<link href="../docs-assets/Breadcrumbs.css" rel="stylesheet" rev="stylesheet" type="text/css">
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<main role="main">
<!--Weave of 'Resolving Conditional Compilation' generated by Inweb-->
<div class="breadcrumbs">
<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">pipeline</a></li><li><a href="index.html#2">Chapter 2: Miscellaneous Pipeline Stages</a></li><li><b>Resolving Conditional Compilation</b></li></ul></div>
<p class="purpose">To generate the initial state of storage for variables.</p>
<ul class="toc"><li><a href="2-rcc.html#SP1">&#167;1. Pipeline stage</a></li><li><a href="2-rcc.html#SP2">&#167;2. Resolution</a></li></ul><hr class="tocbar">
<p class="commentary firstcommentary"><a id="SP1" class="paragraph-anchor"></a><b>&#167;1. Pipeline stage. </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">CodeGen::RCC::create_pipeline_stage</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">CodeGen::RCC::create_pipeline_stage</span></span>:<br/>Stages - <a href="1-stg.html#SP2">&#167;2</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">void</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><a href="1-stg.html#SP1" class="function-link"><span class="function-syntax">CodeGen::Stage::new</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">I</span><span class="string-syntax">"resolve-conditional-compilation"</span><span class="plain-syntax">, </span><a href="2-rcc.html#SP1" class="function-link"><span class="function-syntax">CodeGen::RCC::run_pipeline_stage</span></a><span class="plain-syntax">, </span><span class="constant-syntax">NO_STAGE_ARG</span><span class="plain-syntax">, </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">);</span>
<span class="plain-syntax">}</span>
<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="function-syntax">CodeGen::RCC::run_pipeline_stage</span><span class="plain-syntax">(</span><span class="reserved-syntax">pipeline_step</span><span class="plain-syntax"> *</span><span class="identifier-syntax">step</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><a href="2-rcc.html#SP2" class="function-link"><span class="function-syntax">CodeGen::RCC::resolve</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">step</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">repository</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">TRUE</span><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. Resolution. </b></p>
<pre class="definitions code-font"><span class="definition-keyword">define</span> <span class="constant-syntax">MAX_CC_STACK_SIZE</span><span class="plain-syntax"> </span><span class="constant-syntax">32</span>
</pre>
<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">rcc_state</span><span class="plain-syntax"> {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="identifier-syntax">dictionary</span><span class="plain-syntax"> *</span><span class="identifier-syntax">I6_level_symbols</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">cc_stack</span><span class="plain-syntax">[</span><span class="constant-syntax">MAX_CC_STACK_SIZE</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">cc_sp</span><span class="plain-syntax">;</span>
<span class="plain-syntax">} </span><span class="reserved-syntax">rcc_state</span><span class="plain-syntax">;</span>
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">CodeGen::RCC::resolve</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">CodeGen::RCC::resolve</span></span>:<br/><a href="2-rcc.html#SP1">&#167;1</a></span></button><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="plain-syntax"> </span><span class="reserved-syntax">rcc_state</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">state</span><span class="plain-syntax">.</span><span class="identifier-syntax">I6_level_symbols</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Dictionaries::new</span><span class="plain-syntax">(1024, </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">state</span><span class="plain-syntax">.</span><span class="identifier-syntax">cc_sp</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">InterTree::traverse</span><span class="plain-syntax">(</span><span class="identifier-syntax">I</span><span class="plain-syntax">, </span><a href="2-rcc.html#SP2" class="function-link"><span class="function-syntax">CodeGen::RCC::visitor</span></a><span class="plain-syntax">, &amp;</span><span class="identifier-syntax">state</span><span class="plain-syntax">, </span><span class="identifier-syntax">NULL</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">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">state</span><span class="plain-syntax">.</span><span class="element-syntax">cc_sp</span><span class="plain-syntax"> != </span><span class="constant-syntax">0</span><span class="plain-syntax">)</span>
<span class="plain-syntax"> </span><a href="2-tr.html#SP12" class="function-link"><span class="function-syntax">TemplateReader::error</span></a><span class="plain-syntax">(</span><span class="string-syntax">"conditional compilation is wrongly structured in the template: not enough #endif"</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">void</span><span class="plain-syntax"> </span><span class="function-syntax">CodeGen::RCC::visitor</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">v_state</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">rcc_state</span><span class="plain-syntax"> *</span><span class="identifier-syntax">state</span><span class="plain-syntax"> = (</span><span class="reserved-syntax">rcc_state</span><span class="plain-syntax"> *) </span><span class="identifier-syntax">v_state</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">allow</span><span class="plain-syntax"> = </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">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">&lt;state-&gt;</span><span class="element-syntax">cc_sp</span><span class="plain-syntax">; </span><span class="identifier-syntax">i</span><span class="plain-syntax">++) </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">state</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">cc_stack</span><span class="plain-syntax">[</span><span class="identifier-syntax">i</span><span class="plain-syntax">] == </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">) </span><span class="identifier-syntax">allow</span><span class="plain-syntax"> = </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">inter_package</span><span class="plain-syntax"> *</span><span class="identifier-syntax">outer</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Inter::Packages::container</span><span class="plain-syntax">(</span><span class="identifier-syntax">P</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> ((</span><span class="identifier-syntax">outer</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) || (</span><span class="identifier-syntax">Inter::Packages::is_codelike</span><span class="plain-syntax">(</span><span class="identifier-syntax">outer</span><span class="plain-syntax">) == </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">)) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">P</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">W</span><span class="plain-syntax">.</span><span class="identifier-syntax">data</span><span class="plain-syntax">[</span><span class="identifier-syntax">ID_IFLD</span><span class="plain-syntax">] == </span><span class="identifier-syntax">SPLAT_IST</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">S</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Inode::ID_to_text</span><span class="plain-syntax">(</span><span class="identifier-syntax">P</span><span class="plain-syntax">, </span><span class="identifier-syntax">P</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">W</span><span class="plain-syntax">.</span><span class="identifier-syntax">data</span><span class="plain-syntax">[</span><span class="identifier-syntax">MATTER_SPLAT_IFLD</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">P</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">W</span><span class="plain-syntax">.</span><span class="identifier-syntax">data</span><span class="plain-syntax">[</span><span class="identifier-syntax">PLM_SPLAT_IFLD</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">CONSTANT_PLM:</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">GLOBAL_PLM:</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">ARRAY_PLM:</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">ROUTINE_PLM:</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">DEFAULT_PLM:</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">STUB_PLM:</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">allow</span><span class="plain-syntax">) </span><span class="named-paragraph-container code-font"><a href="2-rcc.html#SP2_1" class="named-paragraph-link"><span class="named-paragraph">Symbol definition</span><span class="named-paragraph-number">2.1</span></a></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">IFDEF_PLM:</span><span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="2-rcc.html#SP2_2" class="named-paragraph-link"><span class="named-paragraph">Deal with an IFDEF</span><span class="named-paragraph-number">2.2</span></a></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">IFNDEF_PLM:</span><span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="2-rcc.html#SP2_3" class="named-paragraph-link"><span class="named-paragraph">Deal with an IFNDEF</span><span class="named-paragraph-number">2.3</span></a></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">IFTRUE_PLM:</span><span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="2-rcc.html#SP2_4" class="named-paragraph-link"><span class="named-paragraph">Deal with an IFTRUE</span><span class="named-paragraph-number">2.4</span></a></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">IFNOT_PLM:</span><span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="2-rcc.html#SP2_5" class="named-paragraph-link"><span class="named-paragraph">Deal with an IFNOT</span><span class="named-paragraph-number">2.5</span></a></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">ENDIF_PLM:</span><span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="2-rcc.html#SP2_6" class="named-paragraph-link"><span class="named-paragraph">Deal with an ENDIF</span><span class="named-paragraph-number">2.6</span></a></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="plain-syntax"> }</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">allow</span><span class="plain-syntax"> == </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">) </span><span class="identifier-syntax">InterTree::remove_node</span><span class="plain-syntax">(</span><span class="identifier-syntax">P</span><span class="plain-syntax">);</span>
<span class="plain-syntax">}</span>
</pre>
<ul class="endnotetexts"><li>The structure rcc_state is private to this section.</li></ul>
<p class="commentary firstcommentary"><a id="SP_1" class="paragraph-anchor"></a><b>&#167;.1. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Extract second token into ident</span><span class="named-paragraph-number">.1</span></span><span class="comment-syntax"> =</span>
</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">tcount</span><span class="plain-syntax"> = </span><span class="constant-syntax">0</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">LOOP_THROUGH_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">pos</span><span class="plain-syntax">, </span><span class="identifier-syntax">S</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">wchar_t</span><span class="plain-syntax"> </span><span class="identifier-syntax">c</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">if</span><span class="plain-syntax"> ((</span><span class="identifier-syntax">c</span><span class="plain-syntax"> == </span><span class="character-syntax">' '</span><span class="plain-syntax">) || (</span><span class="identifier-syntax">c</span><span class="plain-syntax"> == </span><span class="character-syntax">'\t'</span><span class="plain-syntax">) || (</span><span class="identifier-syntax">c</span><span class="plain-syntax"> == </span><span class="character-syntax">'\n'</span><span class="plain-syntax">)) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">tcount</span><span class="plain-syntax"> == </span><span class="constant-syntax">1</span><span class="plain-syntax">) </span><span class="identifier-syntax">tcount</span><span class="plain-syntax"> = </span><span class="constant-syntax">2</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">tcount</span><span class="plain-syntax"> == </span><span class="constant-syntax">2</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">else</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">tcount</span><span class="plain-syntax"> == </span><span class="constant-syntax">0</span><span class="plain-syntax">) </span><span class="identifier-syntax">tcount</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">if</span><span class="plain-syntax"> ((</span><span class="identifier-syntax">c</span><span class="plain-syntax"> == </span><span class="character-syntax">';'</span><span class="plain-syntax">) || (</span><span class="identifier-syntax">c</span><span class="plain-syntax"> == </span><span class="character-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">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">tcount</span><span class="plain-syntax"> == </span><span class="constant-syntax">2</span><span class="plain-syntax">) </span><span class="identifier-syntax">PUT_TO</span><span class="plain-syntax">(</span><span class="identifier-syntax">ident</span><span class="plain-syntax">, </span><span class="identifier-syntax">c</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> }</span>
</pre>
<ul class="endnotetexts"><li>This code is used in <a href="2-rcc.html#SP2_1">&#167;2.1</a>.</li></ul>
<p class="commentary firstcommentary"><a id="SP_1" class="paragraph-anchor"></a><b>&#167;.1. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Extract rest of text into ident</span><span class="named-paragraph-number">.1</span></span><span class="comment-syntax"> =</span>
</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">tcount</span><span class="plain-syntax"> = </span><span class="constant-syntax">0</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">LOOP_THROUGH_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">pos</span><span class="plain-syntax">, </span><span class="identifier-syntax">S</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">wchar_t</span><span class="plain-syntax"> </span><span class="identifier-syntax">c</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">if</span><span class="plain-syntax"> ((</span><span class="identifier-syntax">c</span><span class="plain-syntax"> == </span><span class="character-syntax">' '</span><span class="plain-syntax">) || (</span><span class="identifier-syntax">c</span><span class="plain-syntax"> == </span><span class="character-syntax">'\t'</span><span class="plain-syntax">) || (</span><span class="identifier-syntax">c</span><span class="plain-syntax"> == </span><span class="character-syntax">'\n'</span><span class="plain-syntax">)) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">tcount</span><span class="plain-syntax"> == </span><span class="constant-syntax">1</span><span class="plain-syntax">) </span><span class="identifier-syntax">tcount</span><span class="plain-syntax"> = </span><span class="constant-syntax">2</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> } </span><span class="reserved-syntax">else</span><span class="plain-syntax"> {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">tcount</span><span class="plain-syntax"> == </span><span class="constant-syntax">0</span><span class="plain-syntax">) </span><span class="identifier-syntax">tcount</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">if</span><span class="plain-syntax"> ((</span><span class="identifier-syntax">c</span><span class="plain-syntax"> == </span><span class="character-syntax">';'</span><span class="plain-syntax">) || (</span><span class="identifier-syntax">c</span><span class="plain-syntax"> == </span><span class="character-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">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">tcount</span><span class="plain-syntax"> == </span><span class="constant-syntax">2</span><span class="plain-syntax">) </span><span class="identifier-syntax">PUT_TO</span><span class="plain-syntax">(</span><span class="identifier-syntax">ident</span><span class="plain-syntax">, </span><span class="identifier-syntax">c</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> }</span>
</pre>
<ul class="endnotetexts"><li>This code is used in <a href="2-rcc.html#SP2_2">&#167;2.2</a>, <a href="2-rcc.html#SP2_3">&#167;2.3</a>, <a href="2-rcc.html#SP2_4">&#167;2.4</a>.</li></ul>
<p class="commentary firstcommentary"><a id="SP2_1" class="paragraph-anchor"></a><b>&#167;2.1. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Symbol definition</span><span class="named-paragraph-number">2.1</span></span><span class="comment-syntax"> =</span>
</p>
<pre class="displayed-code all-displayed-code code-font">
<span class="plain-syntax"> </span><span class="identifier-syntax">TEMPORARY_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">ident</span><span class="plain-syntax">)</span>
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="2-rcc.html#SP_1" class="named-paragraph-link"><span class="named-paragraph">Extract second token into ident</span><span class="named-paragraph-number">.1</span></a></span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">LOGIF</span><span class="plain-syntax">(</span><span class="identifier-syntax">RESOLVING_CONDITIONAL_COMPILATION</span><span class="plain-syntax">, </span><span class="string-syntax">"I6 defines %S here\n"</span><span class="plain-syntax">, </span><span class="identifier-syntax">ident</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">Dictionaries::create</span><span class="plain-syntax">(</span><span class="identifier-syntax">state</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">I6_level_symbols</span><span class="plain-syntax">, </span><span class="identifier-syntax">ident</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">ident</span><span class="plain-syntax">)</span>
</pre>
<ul class="endnotetexts"><li>This code is used in <a href="2-rcc.html#SP2">&#167;2</a>.</li></ul>
<p class="commentary firstcommentary"><a id="SP2_2" class="paragraph-anchor"></a><b>&#167;2.2. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Deal with an IFDEF</span><span class="named-paragraph-number">2.2</span></span><span class="comment-syntax"> =</span>
</p>
<pre class="displayed-code all-displayed-code code-font">
<span class="plain-syntax"> </span><span class="identifier-syntax">TEMPORARY_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">ident</span><span class="plain-syntax">)</span>
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="2-rcc.html#SP_1" class="named-paragraph-link"><span class="named-paragraph">Extract rest of text into ident</span><span class="named-paragraph-number">.1</span></a></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">result</span><span class="plain-syntax"> = </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">symbol_name</span><span class="plain-syntax"> = </span><span class="identifier-syntax">ident</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="2-rcc.html#SP2_2_1" class="named-paragraph-link"><span class="named-paragraph">Decide whether symbol defined</span><span class="named-paragraph-number">2.2.1</span></a></span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="2-rcc.html#SP2_2_2" class="named-paragraph-link"><span class="named-paragraph">Stack up the result</span><span class="named-paragraph-number">2.2.2</span></a></span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">allow</span><span class="plain-syntax"> = </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">DISCARD_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">ident</span><span class="plain-syntax">)</span>
</pre>
<ul class="endnotetexts"><li>This code is used in <a href="2-rcc.html#SP2">&#167;2</a>.</li></ul>
<p class="commentary firstcommentary"><a id="SP2_3" class="paragraph-anchor"></a><b>&#167;2.3. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Deal with an IFNDEF</span><span class="named-paragraph-number">2.3</span></span><span class="comment-syntax"> =</span>
</p>
<pre class="displayed-code all-displayed-code code-font">
<span class="plain-syntax"> </span><span class="identifier-syntax">TEMPORARY_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">ident</span><span class="plain-syntax">)</span>
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="2-rcc.html#SP_1" class="named-paragraph-link"><span class="named-paragraph">Extract rest of text into ident</span><span class="named-paragraph-number">.1</span></a></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">result</span><span class="plain-syntax"> = </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">symbol_name</span><span class="plain-syntax"> = </span><span class="identifier-syntax">ident</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="2-rcc.html#SP2_2_1" class="named-paragraph-link"><span class="named-paragraph">Decide whether symbol defined</span><span class="named-paragraph-number">2.2.1</span></a></span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">result</span><span class="plain-syntax"> = (</span><span class="identifier-syntax">result</span><span class="plain-syntax">)?</span><span class="identifier-syntax">FALSE:TRUE</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="2-rcc.html#SP2_2_2" class="named-paragraph-link"><span class="named-paragraph">Stack up the result</span><span class="named-paragraph-number">2.2.2</span></a></span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">allow</span><span class="plain-syntax"> = </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">DISCARD_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">ident</span><span class="plain-syntax">)</span>
</pre>
<ul class="endnotetexts"><li>This code is used in <a href="2-rcc.html#SP2">&#167;2</a>.</li></ul>
<p class="commentary firstcommentary"><a id="SP2_2_1" class="paragraph-anchor"></a><b>&#167;2.2.1. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Decide whether symbol defined</span><span class="named-paragraph-number">2.2.1</span></span><span class="comment-syntax"> =</span>
</p>
<pre class="displayed-code all-displayed-code code-font">
<span class="plain-syntax"> </span><span class="identifier-syntax">inter_symbol</span><span class="plain-syntax"> *</span><span class="identifier-syntax">symbol</span><span class="plain-syntax"> = </span><span class="identifier-syntax">InterSymbolsTables::symbol_from_name_in_main_or_basics</span><span class="plain-syntax">(</span><span class="identifier-syntax">I</span><span class="plain-syntax">, </span><span class="identifier-syntax">symbol_name</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">symbol</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">result</span><span class="plain-syntax"> = </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">Inter::Symbols::is_extern</span><span class="plain-syntax">(</span><span class="identifier-syntax">symbol</span><span class="plain-syntax">)) </span><span class="identifier-syntax">result</span><span class="plain-syntax"> = </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> } </span><span class="reserved-syntax">else</span><span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">Dictionaries::find</span><span class="plain-syntax">(</span><span class="identifier-syntax">state</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">I6_level_symbols</span><span class="plain-syntax">, </span><span class="identifier-syntax">symbol_name</span><span class="plain-syntax">)) </span><span class="identifier-syntax">result</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">LOGIF</span><span class="plain-syntax">(</span><span class="identifier-syntax">RESOLVING_CONDITIONAL_COMPILATION</span><span class="plain-syntax">, </span><span class="string-syntax">"Must decide if %S defined: %s\n"</span><span class="plain-syntax">, </span><span class="identifier-syntax">symbol_name</span><span class="plain-syntax">, (</span><span class="identifier-syntax">result</span><span class="plain-syntax">)?</span><span class="string-syntax">"yes"</span><span class="plain-syntax">:</span><span class="string-syntax">"no"</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">Log::aspect_switched_on</span><span class="plain-syntax">(</span><span class="constant-syntax">RESOLVING_CONDITIONAL_COMPILATION_DA</span><span class="plain-syntax">)) </span><span class="identifier-syntax">LOG_INDENT</span><span class="plain-syntax">;</span>
</pre>
<ul class="endnotetexts"><li>This code is used in <a href="2-rcc.html#SP2_2">&#167;2.2</a>, <a href="2-rcc.html#SP2_3">&#167;2.3</a>.</li></ul>
<p class="commentary firstcommentary"><a id="SP2_4" class="paragraph-anchor"></a><b>&#167;2.4. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Deal with an IFTRUE</span><span class="named-paragraph-number">2.4</span></span><span class="comment-syntax"> =</span>
</p>
<pre class="displayed-code all-displayed-code code-font">
<span class="plain-syntax"> </span><span class="identifier-syntax">TEMPORARY_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">ident</span><span class="plain-syntax">)</span>
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="2-rcc.html#SP_1" class="named-paragraph-link"><span class="named-paragraph">Extract rest of text into ident</span><span class="named-paragraph-number">.1</span></a></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">result</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NOT_APPLICABLE</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">cond</span><span class="plain-syntax"> = </span><span class="identifier-syntax">ident</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">match_results</span><span class="plain-syntax"> </span><span class="identifier-syntax">mr2</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Regexp::create_mr</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">Regexp::match</span><span class="plain-syntax">(&amp;</span><span class="identifier-syntax">mr2</span><span class="plain-syntax">, </span><span class="identifier-syntax">cond</span><span class="plain-syntax">, </span><span class="identifier-syntax">L</span><span class="string-syntax">" *(%C+?) *== *(%d+) *"</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">identifier</span><span class="plain-syntax"> = </span><span class="identifier-syntax">mr2</span><span class="plain-syntax">.</span><span class="identifier-syntax">exp</span><span class="plain-syntax">[0];</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">inter_symbol</span><span class="plain-syntax"> *</span><span class="identifier-syntax">symbol</span><span class="plain-syntax"> = </span><span class="identifier-syntax">InterSymbolsTables::symbol_from_name_in_main_or_basics</span><span class="plain-syntax">(</span><span class="identifier-syntax">I</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">symbol</span><span class="plain-syntax">) {</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="identifier-syntax">Inter::Symbols::definition</span><span class="plain-syntax">(</span><span class="identifier-syntax">symbol</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> ((</span><span class="identifier-syntax">P</span><span class="plain-syntax">) &amp;&amp;</span>
<span class="plain-syntax"> (</span><span class="identifier-syntax">P</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">W</span><span class="plain-syntax">.</span><span class="identifier-syntax">data</span><span class="plain-syntax">[</span><span class="identifier-syntax">ID_IFLD</span><span class="plain-syntax">] == </span><span class="identifier-syntax">CONSTANT_IST</span><span class="plain-syntax">) &amp;&amp;</span>
<span class="plain-syntax"> (</span><span class="identifier-syntax">P</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">W</span><span class="plain-syntax">.</span><span class="identifier-syntax">data</span><span class="plain-syntax">[</span><span class="identifier-syntax">FORMAT_CONST_IFLD</span><span class="plain-syntax">] == </span><span class="identifier-syntax">CONSTANT_DIRECT</span><span class="plain-syntax">) &amp;&amp;</span>
<span class="plain-syntax"> (</span><span class="identifier-syntax">P</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">W</span><span class="plain-syntax">.</span><span class="identifier-syntax">data</span><span class="plain-syntax">[</span><span class="identifier-syntax">DATA_CONST_IFLD</span><span class="plain-syntax">] == </span><span class="identifier-syntax">LITERAL_IVAL</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">V</span><span class="plain-syntax"> = (</span><span class="reserved-syntax">int</span><span class="plain-syntax">) </span><span class="identifier-syntax">P</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">W</span><span class="plain-syntax">.</span><span class="identifier-syntax">data</span><span class="plain-syntax">[</span><span class="identifier-syntax">DATA_CONST_IFLD</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">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">W</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Str::atoi</span><span class="plain-syntax">(</span><span class="identifier-syntax">mr2</span><span class="plain-syntax">.</span><span class="identifier-syntax">exp</span><span class="plain-syntax">[1], </span><span class="constant-syntax">0</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">V</span><span class="plain-syntax"> == </span><span class="identifier-syntax">W</span><span class="plain-syntax">) </span><span class="identifier-syntax">result</span><span class="plain-syntax"> = </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">; </span><span class="reserved-syntax">else</span><span class="plain-syntax"> </span><span class="identifier-syntax">result</span><span class="plain-syntax"> = </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">result</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NOT_APPLICABLE</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><a href="2-tr.html#SP12" class="function-link"><span class="function-syntax">TemplateReader::error</span></a><span class="plain-syntax">(</span><span class="string-syntax">"conditional compilation is too difficult in the template: #iftrue on %S"</span><span class="plain-syntax">, </span><span class="identifier-syntax">cond</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">result</span><span class="plain-syntax"> = </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">LOGIF</span><span class="plain-syntax">(</span><span class="identifier-syntax">RESOLVING_CONDITIONAL_COMPILATION</span><span class="plain-syntax">, </span><span class="string-syntax">"Must decide if %S: "</span><span class="plain-syntax">, </span><span class="identifier-syntax">cond</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">LOGIF</span><span class="plain-syntax">(</span><span class="identifier-syntax">RESOLVING_CONDITIONAL_COMPILATION</span><span class="plain-syntax">, </span><span class="string-syntax">"%s\n"</span><span class="plain-syntax">, (</span><span class="identifier-syntax">result</span><span class="plain-syntax">)?</span><span class="string-syntax">"true"</span><span class="plain-syntax">:</span><span class="string-syntax">"false"</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">Log::aspect_switched_on</span><span class="plain-syntax">(</span><span class="constant-syntax">RESOLVING_CONDITIONAL_COMPILATION_DA</span><span class="plain-syntax">)) </span><span class="identifier-syntax">LOG_INDENT</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="2-rcc.html#SP2_2_2" class="named-paragraph-link"><span class="named-paragraph">Stack up the result</span><span class="named-paragraph-number">2.2.2</span></a></span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">allow</span><span class="plain-syntax"> = </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">DISCARD_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">ident</span><span class="plain-syntax">)</span>
</pre>
<ul class="endnotetexts"><li>This code is used in <a href="2-rcc.html#SP2">&#167;2</a>.</li></ul>
<p class="commentary firstcommentary"><a id="SP2_2_2" class="paragraph-anchor"></a><b>&#167;2.2.2. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Stack up the result</span><span class="named-paragraph-number">2.2.2</span></span><span class="comment-syntax"> =</span>
</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">state</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">cc_sp</span><span class="plain-syntax"> &gt;= </span><span class="constant-syntax">MAX_CC_STACK_SIZE</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">state</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">cc_sp</span><span class="plain-syntax"> = </span><span class="constant-syntax">MAX_CC_STACK_SIZE</span><span class="plain-syntax">; </span><a href="2-tr.html#SP12" class="function-link"><span class="function-syntax">TemplateReader::error</span></a><span class="plain-syntax">(</span><span class="string-syntax">"conditional compilation is wrongly structured in the template: too many nested #ifdef or #iftrue"</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">else</span><span class="plain-syntax"> {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">state</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">cc_stack</span><span class="plain-syntax">[</span><span class="identifier-syntax">state</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">cc_sp</span><span class="plain-syntax">++] = </span><span class="identifier-syntax">result</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> }</span>
</pre>
<ul class="endnotetexts"><li>This code is used in <a href="2-rcc.html#SP2_2">&#167;2.2</a>, <a href="2-rcc.html#SP2_3">&#167;2.3</a>, <a href="2-rcc.html#SP2_4">&#167;2.4</a>.</li></ul>
<p class="commentary firstcommentary"><a id="SP2_5" class="paragraph-anchor"></a><b>&#167;2.5. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Deal with an IFNOT</span><span class="named-paragraph-number">2.5</span></span><span class="comment-syntax"> =</span>
</p>
<pre class="displayed-code all-displayed-code code-font">
<span class="plain-syntax"> </span><span class="identifier-syntax">LOGIF</span><span class="plain-syntax">(</span><span class="identifier-syntax">RESOLVING_CONDITIONAL_COMPILATION</span><span class="plain-syntax">, </span><span class="string-syntax">"ifnot\n"</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">state</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">cc_sp</span><span class="plain-syntax"> == </span><span class="constant-syntax">0</span><span class="plain-syntax">) </span><a href="2-tr.html#SP12" class="function-link"><span class="function-syntax">TemplateReader::error</span></a><span class="plain-syntax">(</span><span class="string-syntax">"conditional compilation is wrongly structured in the template: #ifnot at top level"</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">else</span><span class="plain-syntax"> </span><span class="identifier-syntax">state</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">cc_stack</span><span class="plain-syntax">[</span><span class="identifier-syntax">state</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">cc_sp</span><span class="plain-syntax">-1] = (</span><span class="identifier-syntax">state</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">cc_stack</span><span class="plain-syntax">[</span><span class="identifier-syntax">state</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">cc_sp</span><span class="plain-syntax">-1])?</span><span class="identifier-syntax">FALSE:TRUE</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">allow</span><span class="plain-syntax"> = </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">;</span>
</pre>
<ul class="endnotetexts"><li>This code is used in <a href="2-rcc.html#SP2">&#167;2</a>.</li></ul>
<p class="commentary firstcommentary"><a id="SP2_6" class="paragraph-anchor"></a><b>&#167;2.6. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Deal with an ENDIF</span><span class="named-paragraph-number">2.6</span></span><span class="comment-syntax"> =</span>
</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">Log::aspect_switched_on</span><span class="plain-syntax">(</span><span class="constant-syntax">RESOLVING_CONDITIONAL_COMPILATION_DA</span><span class="plain-syntax">)) </span><span class="identifier-syntax">LOG_OUTDENT</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">LOGIF</span><span class="plain-syntax">(</span><span class="identifier-syntax">RESOLVING_CONDITIONAL_COMPILATION</span><span class="plain-syntax">, </span><span class="string-syntax">"endif\n"</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">state</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">cc_sp</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">state</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">cc_sp</span><span class="plain-syntax"> &lt; </span><span class="constant-syntax">0</span><span class="plain-syntax">) { </span><span class="identifier-syntax">state</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">cc_sp</span><span class="plain-syntax"> = </span><span class="constant-syntax">0</span><span class="plain-syntax">; </span><a href="2-tr.html#SP12" class="function-link"><span class="function-syntax">TemplateReader::error</span></a><span class="plain-syntax">(</span><span class="string-syntax">"conditional compilation is wrongly structured in the template: too many #endif"</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">allow</span><span class="plain-syntax"> = </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">;</span>
</pre>
<ul class="endnotetexts"><li>This code is used in <a href="2-rcc.html#SP2">&#167;2</a>.</li></ul>
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