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-<h2><span class="refentrytitle">Function call</span></h2>
-<p>boost::type_erasure::call</p>
-</div>
-<h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2>
-<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="../../boost_typeerasure/reference.html#header.boost.type_erasure.call_hpp" title="Header &lt;boost/type_erasure/call.hpp&gt;">boost/type_erasure/call.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Concept<span class="special">,</span> <span class="keyword">typename</span> Op<span class="special">,</span> <span class="keyword">class</span><span class="special">...</span> U<span class="special">&gt;</span>
- <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <span class="identifier">call</span><span class="special">(</span><span class="keyword">const</span> <a class="link" href="binding.html" title="Class template binding">binding</a><span class="special">&lt;</span> <span class="identifier">Concept</span> <span class="special">&gt;</span> <span class="special">&amp;</span> binding<span class="special">,</span> <span class="keyword">const</span> <span class="identifier">Op</span> <span class="special">&amp;</span><span class="special">,</span>
- <span class="identifier">U</span> <span class="special">&amp;&amp;</span><span class="special">...</span> args<span class="special">)</span><span class="special">;</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Op<span class="special">,</span> <span class="keyword">class</span><span class="special">...</span> U<span class="special">&gt;</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <span class="identifier">call</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">Op</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">U</span> <span class="special">&amp;&amp;</span><span class="special">...</span> args<span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm45927741701712"></a><h2>Description</h2>
-<p>Dispatches a type erased function.</p>
-<p><code class="computeroutput">Op</code> must be a primitive concept which is present in <code class="computeroutput">Concept</code>. Its signature determines how the arguments of <code class="computeroutput"><a class="link" href="call_idm46563170497328.html" title="Function call">call</a></code> are handled. If the argument is a <code class="computeroutput"><a class="link" href="placeholder.html" title="Struct placeholder">placeholder</a></code>, <code class="computeroutput"><a class="link" href="call_idm46563170497328.html" title="Function call">call</a></code> expects an <code class="computeroutput"><a class="link" href="any.html" title="Class template any">any</a></code> using that <code class="computeroutput"><a class="link" href="placeholder.html" title="Struct placeholder">placeholder</a></code>. This <code class="computeroutput"><a class="link" href="any.html" title="Class template any">any</a></code> is unwrapped by <code class="computeroutput"><a class="link" href="call_idm46563170497328.html" title="Function call">call</a></code>. The type that it stores must be the same type specified by <code class="computeroutput">binding</code>. Any arguments that are not placeholders in the signature of <code class="computeroutput">Op</code> are passed through unchanged.</p>
-<p>If <code class="computeroutput">binding</code> is not specified, it will be deduced from the arguments. Naturally this requires at least one argument to be an <code class="computeroutput"><a class="link" href="any.html" title="Class template any">any</a></code>. In this case, all <code class="computeroutput"><a class="link" href="any.html" title="Class template any">any</a></code> arguments must have the same <code class="computeroutput"><a class="link" href="binding.html" title="Class template binding">binding</a></code>.</p>
-<p>
-
-Example:</p>
-<pre class="programlisting"><span class="keyword">typedef</span> <span class="identifier">mpl</span><span class="special">::</span><span class="identifier">vector</span><span class="special">&lt;</span>
- <span class="identifier">copy_constructible</span><span class="special">&lt;</span><span class="identifier">_b</span><span class="special">&gt;</span><span class="special">,</span>
- <span class="identifier">addable</span><span class="special">&lt;</span><span class="identifier">_a</span><span class="special">,</span> <span class="keyword">int</span><span class="special">,</span> <span class="identifier">_b</span><span class="special">&gt;</span> <span class="special">&gt;</span> <span class="identifier">concept</span><span class="special">;</span>
-<span class="identifier">any</span><span class="special">&lt;</span><span class="identifier">concept</span><span class="special">,</span> <span class="identifier">_a</span><span class="special">&gt;</span> <span class="identifier">a</span> <span class="special">=</span> <span class="special">...</span><span class="special">;</span>
-<span class="identifier">any</span><span class="special">&lt;</span><span class="identifier">concept</span><span class="special">,</span> <span class="identifier">_b</span><span class="special">&gt;</span> <span class="identifier">b</span><span class="special">(</span><span class="identifier">call</span><span class="special">(</span><span class="identifier">addable</span><span class="special">&lt;</span><span class="identifier">_a</span><span class="special">,</span> <span class="keyword">int</span><span class="special">,</span> <span class="identifier">_b</span><span class="special">&gt;</span><span class="special">(</span><span class="special">)</span><span class="special">,</span> <span class="identifier">a</span><span class="special">,</span> <span class="number">10</span><span class="special">)</span><span class="special">)</span><span class="special">;</span>
-</pre>
-<p>The signature of <code class="computeroutput"><a class="link" href="addable.html" title="Struct template addable">addable</a></code> is <code class="computeroutput">_b(const _a&amp;, const int&amp;)</code> </p>
-<div class="variablelist"><table border="0" class="variablelist compact">
-<colgroup>
-<col align="left" valign="top">
-<col>
-</colgroup>
-<tbody>
-<tr>
-<td><p><span class="term">Returns:</span></p></td>
-<td><p>The result of the operation. If the result type of the signature of <code class="computeroutput">Op</code> is a placeholder, the result will be converted to the appropriate <a class="link" href="any.html" title="Class template any">any</a> type.</p></td>
-</tr>
-<tr>
-<td><p><span class="term">Throws:</span></p></td>
-<td>
-<a class="link" href="../bad_function_call.html" title="Class bad_function_call">bad_function_call</a> if <a class="link" href="relaxed.html" title="Struct relaxed">relaxed</a> is in <code class="computeroutput">Concept</code> and there is a type mismatch.</td>
-</tr>
-</tbody>
-</table></div>
-</div>
-</div>
-<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
-<td align="left"></td>
-<td align="right"><div class="copyright-footer">Copyright &#169; 2011-2013 Steven Watanabe<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>)
- </p>
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