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<title>fatal error C1204:Compiler limit:internal structure overflow</title>
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<div class="titlepage"><div><div><h3 class="title">
<a name="faq.fatal_error_c1204_compiler_limit"></a><a class="link" href="fatal_error_c1204_compiler_limit.html" title="fatal error C1204:Compiler limit:internal structure overflow">fatal error C1204:Compiler
      limit:internal structure overflow</a>
</h3></div></div></div>
<p>
        <span class="bold"><strong>Q:</strong></span> <span class="emphasis"><em>I get this error message when
        compiling a large source file. What can I do?</em></span>
      </p>
<p>
        <span class="bold"><strong>A:</strong></span> You have two choices:
      </p>
<div class="orderedlist"><ol class="orderedlist" type="1">
<li class="listitem">
            Upgrade your compiler (preferred)
          </li>
<li class="listitem">
<p class="simpara">
            Break your source file up into multiple translation units.
          </p>
<p class="simpara">
            <code class="computeroutput"><span class="identifier">my_module</span><span class="special">.</span><span class="identifier">cpp</span></code>:
          </p>
<pre class="programlisting"><span class="special">...</span>
<span class="keyword">void</span> <span class="identifier">more_of_my_module</span><span class="special">();</span>
<span class="identifier">BOOST_PYTHON_MODULE</span><span class="special">(</span><span class="identifier">my_module</span><span class="special">)</span>
<span class="special">{</span>
  <span class="identifier">def</span><span class="special">(</span><span class="string">"foo"</span><span class="special">,</span> <span class="identifier">foo</span><span class="special">);</span>
  <span class="identifier">def</span><span class="special">(</span><span class="string">"bar"</span><span class="special">,</span> <span class="identifier">bar</span><span class="special">);</span>
  <span class="special">...</span>
  <span class="identifier">more_of_my_module</span><span class="special">();</span>
<span class="special">}</span>
</pre>
<p class="simpara">
            <code class="computeroutput"><span class="identifier">more_of_my_module</span><span class="special">.</span><span class="identifier">cpp</span></code>:
          </p>
<pre class="programlisting"><span class="keyword">void</span> <span class="identifier">more_of_my_module</span><span class="special">()</span>
<span class="special">{</span>
  <span class="identifier">def</span><span class="special">(</span><span class="string">"baz"</span><span class="special">,</span> <span class="identifier">baz</span><span class="special">);</span>
  <span class="special">...</span>
<span class="special">}</span>
</pre>
<p class="simpara">
            If you find that a <code class="computeroutput"><span class="identifier">class_</span><span class="special">&lt;...&gt;</span></code> declaration can't fit in a
            single source file without triggering the error, you can always pass
            a reference to the <code class="computeroutput"><span class="identifier">class_</span></code>
            object to a function in another source file, and call some of its member
            functions (e.g. <code class="computeroutput"><span class="special">.</span><span class="identifier">def</span><span class="special">(...)</span></code>) in the auxilliary source file:
          </p>
<p class="simpara">
            <code class="computeroutput"><span class="identifier">more_of_my_class</span><span class="special">.</span><span class="identifier">cpp</span></code>:
          </p>
<pre class="programlisting"><span class="keyword">void</span> <span class="identifier">more_of_my_class</span><span class="special">(</span><span class="keyword">class</span><span class="special">&amp;</span><span class="identifier">lt</span><span class="special">;</span><span class="identifier">my_class</span><span class="special">&amp;</span><span class="identifier">gt</span><span class="special">;&amp;</span><span class="identifier">amp</span><span class="special">;</span> <span class="identifier">x</span><span class="special">)</span>
<span class="special">{</span>
  <span class="identifier">x</span>
   <span class="special">.</span><span class="identifier">def</span><span class="special">(</span><span class="string">"baz"</span><span class="special">,</span> <span class="identifier">baz</span><span class="special">)</span>
   <span class="special">.</span><span class="identifier">add_property</span><span class="special">(</span><span class="string">"xx"</span><span class="special">,</span> <span class="special">&amp;</span><span class="identifier">my_class</span><span class="special">::</span><span class="identifier">get_xx</span><span class="special">,</span> <span class="special">&amp;</span><span class="identifier">my_class</span><span class="special">::</span><span class="identifier">set_xx</span><span class="special">)</span>
   <span class="special">;</span>
  <span class="special">...</span>
<span class="special">}</span>
</pre>
</li>
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<td align="right"><div class="copyright-footer">Copyright &#169; 2002-2015 David
      Abrahams, Stefan Seefeld<p>
        Distributed under the Boost Software License, Version 1.0. (See accompanying
        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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