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<h2><span class="refentrytitle">Macro BOOST_LOCAL_FUNCTION_TPL</span></h2>
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<p>BOOST_LOCAL_FUNCTION_TPL — This macro is used to start a local function declaration within templates. </p>
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<h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2>
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<div xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: <<a class="link" href="reference.html#header.boost.local_function_hpp" title="Header <boost/local_function.hpp>">boost/local_function.hpp</a>>
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</span>BOOST_LOCAL_FUNCTION_TPL(declarations)</pre></div>
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<div class="refsect1">
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<a name="id904606"></a><h2>Description</h2>
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<p>This macro must be used instead of <code class="computeroutput"><a class="link" href="BOOST_LOCAL_FUNCTION.html" title="Macro BOOST_LOCAL_FUNCTION">BOOST_LOCAL_FUNCTION</a></code> when declaring a local function within a template. A part from that, this macro has the exact same syntax a <code class="computeroutput"><a class="link" href="BOOST_LOCAL_FUNCTION.html" title="Macro BOOST_LOCAL_FUNCTION">BOOST_LOCAL_FUNCTION</a></code> (see <code class="computeroutput"><a class="link" href="BOOST_LOCAL_FUNCTION.html" title="Macro BOOST_LOCAL_FUNCTION">BOOST_LOCAL_FUNCTION</a></code> for more information): </p>
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<pre class="programlisting"><span class="special">{</span> <span class="comment">// Some declarative context within a template.</span>
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<span class="special">...</span>
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<span class="identifier">result_type</span> <span class="identifier">BOOST_LOCAL_FUNCTION_TPL</span><span class="special">(</span><span class="identifier">declarations</span><span class="special">)</span> <span class="special">{</span>
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<span class="special">...</span> <span class="comment">// Body code.</span>
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<span class="special">}</span> <span class="identifier">BOOST_LOCAL_FUNCTION_NAME_TPL</span><span class="special">(</span><span class="identifier">qualified_name</span><span class="special">)</span>
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<span class="special">...</span>
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<span class="special">}</span>
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</pre>
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<p>Note that <code class="computeroutput"><a class="link" href="BOOST_LOCAL_FUNCTION_NAME_TPL.html" title="Macro BOOST_LOCAL_FUNCTION_NAME_TPL">BOOST_LOCAL_FUNCTION_NAME_TPL</a></code> must be used with this macro instead of <code class="computeroutput"><a class="link" href="BOOST_LOCAL_FUNCTION_NAME.html" title="Macro BOOST_LOCAL_FUNCTION_NAME">BOOST_LOCAL_FUNCTION_NAME</a></code>.</p>
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<p>This macro cannot be portably expanded multiple times on the same line. In these cases, use the <code class="computeroutput"><a class="link" href="BOOST_LOCAL_FUNCTION_ID_TPL.html" title="Macro BOOST_LOCAL_FUNCTION_ID_TPL">BOOST_LOCAL_FUNCTION_ID_TPL</a></code> macro instead.</p>
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<p><span class="bold"><strong>Note:</strong></span> C++03 does not allow to use <code class="computeroutput">typename</code> outside templates. This library internally manipulates types, these operations require <code class="computeroutput">typename</code> but only within templates. This macro is used to indicate to the library when the enclosing scope is a template so the library can correctly use <code class="computeroutput">typename</code>.</p>
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<p><span class="bold"><strong>See:</strong></span> <a class="link" href="boost_localfunction/tutorial.html" title="Tutorial"> Tutorial</a> section, <code class="computeroutput"><a class="link" href="BOOST_LOCAL_FUNCTION.html" title="Macro BOOST_LOCAL_FUNCTION">BOOST_LOCAL_FUNCTION</a></code>, <code class="computeroutput"><a class="link" href="BOOST_LOCAL_FUNCTION_ID_TPL.html" title="Macro BOOST_LOCAL_FUNCTION_ID_TPL">BOOST_LOCAL_FUNCTION_ID_TPL</a></code>, <code class="computeroutput"><a class="link" href="BOOST_LOCAL_FUNCTION_NAME_TPL.html" title="Macro BOOST_LOCAL_FUNCTION_NAME_TPL">BOOST_LOCAL_FUNCTION_NAME_TPL</a></code>. </p>
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<td align="right"><div class="copyright-footer">Copyright © 2009-2012 Lorenzo
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Caminiti<p>
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Distributed under the Boost Software License, Version 1.0 (see accompanying
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file LICENSE_1_0.txt or a 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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