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  28 <h2><span class="refentrytitle">Macro BOOST_PROTO_ASSERT_MATCHES</span></h2>
  29 <p>BOOST_PROTO_ASSERT_MATCHES &#8212;
  30       Assert at compile time that a particular expression
  31       matches the specified grammar.
  32     </p>
  33 </div>
  34 <h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2>
  35 <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.debug_hpp" title="Header &lt;boost/proto/debug.hpp&gt;">boost/proto/debug.hpp</a>&gt;
  36
  37 </span>BOOST_PROTO_ASSERT_MATCHES(expr, Grammar)</pre></div>
  38 <div class="refsect1">
  39 <a name="idp368932368"></a><h2>Description</h2>
  40 <p>
  41         Use <code class="computeroutput">BOOST_PROTO_ASSERT_MATCHES()</code> to assert at compile-time that
  42         an expression matches a grammar.
  43       </p>
  44 <p>
  45         <span class="bold"><strong>Example:</strong></span></p>
  46 <pre class="programlisting"><span class="keyword">typedef</span> <a class="link" href="boost/proto/plus.html" title="Struct template plus">proto::plus</a><span class="special">&lt;</span> <a class="link" href="boost/proto/terminal.html" title="Struct template terminal">proto::terminal</a><span class="special">&lt;</span> <span class="keyword">int</span> <span class="special">&gt;</span><span class="special">,</span> <a class="link" href="boost/proto/terminal.html" title="Struct template terminal">proto::terminal</a><span class="special">&lt;</span> <span class="keyword">int</span> <span class="special">&gt;</span> <span class="special">&gt;</span> <span class="identifier">PlusInts</span><span class="special">;</span>
  47
  48 <span class="identifier">BOOST_PROTO_ASSERT_MATCHES</span><span class="special">(</span> <a class="link" href="boost/proto/lit.html" title="Function lit">proto::lit</a><span class="special">(</span><span class="number">1</span><span class="special">)</span> <span class="special">+</span> <span class="number">42</span><span class="special">,</span> <span class="identifier">PlusInts</span> <span class="special">)</span><span class="special">;</span></pre>
  49 <p>
  50       </p>
  51 <p>
  52         See also:
  53         </p>
  54 <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
  55 <li class="listitem"><code class="computeroutput"><a class="link" href="boost/proto/assert_matches.html" title="Function template assert_matches">proto::assert_matches</a>()</code></li>
  56 <li class="listitem"><code class="computeroutput"><a class="link" href="boost/proto/assert_matches_not.html" title="Function template assert_matches_not">proto::assert_matches_not</a>()</code></li>
  57 <li class="listitem"><code class="computeroutput"><a class="link" href="BOOST_PROTO_ASSERT_MATCHES_NOT.html" title="Macro BOOST_PROTO_ASSERT_MATCHES_NOT">BOOST_PROTO_ASSERT_MATCHES_NOT</a>()</code></li>
  58 </ul></div>
  59 <p>
  60       </p>
  61 </div>
  62 </div>
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  64 <td align="left"></td>
  65 <td align="right"><div class="copyright-footer">Copyright &#169; 2008 Eric Niebler<p>
  66         Distributed under the Boost Software License, Version 1.0. (See accompanying
  67         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>)
  68       </p>
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