doc/html/boost/proto/context/null_context.html

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  27 <a name="boost.proto.context.null_context"></a><div class="titlepage"></div>
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  29 <h2><span class="refentrytitle">Struct null_context</span></h2>
  30 <p>boost::proto::context::null_context &#8212; An evaluation context for <a class="link" href="../eval_idp700521824.html" title="Function eval">proto::eval()</a> that simply evaluates
  31               each child expression, doesn't combine the results at all, and returns void.</p>
  32 </div>
  33 <h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2>
  34 <div xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../../proto/reference.html#header.boost.proto.context.null_hpp" title="Header &lt;boost/proto/context/null.hpp&gt;">boost/proto/context/null.hpp</a>&gt;
  35
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  37 <span class="keyword">struct</span> <a class="link" href="null_context.html" title="Struct null_context">null_context</a> <span class="special">{</span>
  38   <span class="comment">// member classes/structs/unions</span>
  39   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> <a class="link" href="../../../Expr.html" title="Concept Expr">Expr</a><span class="special">,</span> <span class="keyword">typename</span> ThisContext <span class="special">=</span> <span class="identifier">null_context</span> <span class="keyword">const</span><span class="special">&gt;</span>
  40   <span class="keyword">struct</span> <a class="link" href="null_context/eval.html" title="Struct template eval">eval</a> <span class="special">:</span> <span class="keyword"></span> <a class="link" href="null_eval.html" title="Struct template null_eval">proto::context::null_eval</a><span class="special">&lt;</span> <span class="identifier">Expr</span><span class="special">,</span> <span class="identifier">ThisContext</span> <span class="special">&gt;</span> <span class="special">{</span>
  41   <span class="special">}</span><span class="special">;</span>
  42 <span class="special">}</span><span class="special">;</span></pre></div>
  43 <div class="refsect1">
  44 <a name="idp486149872"></a><h2>Description</h2>
  45 </div>
  46 </div>
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  48 <td align="left"></td>
  49 <td align="right"><div class="copyright-footer">Copyright &#169; 2008 Eric Niebler<p>
  50         Distributed under the Boost Software License, Version 1.0. (See accompanying
  51         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>)
  52       </p>
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