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28<h2><span class="refentrytitle">Macro BOOST_LOCAL_FUNCTION_ID_TPL</span></h2>
29<p>BOOST_LOCAL_FUNCTION_ID_TPL &#8212; This macro allows to declare multiple local functions on the same line within templates. </p>
30</div>
31<h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2>
32<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="reference.html#header.boost.local_function_hpp" title="Header &lt;boost/local_function.hpp&gt;">boost/local_function.hpp</a>&gt;
33
34</span>BOOST_LOCAL_FUNCTION_ID_TPL(id, declarations)</pre></div>
35<div class="refsect1">
36<a name="id906102"></a><h2>Description</h2>
37<p>This macro must be used instead of <code class="computeroutput"><a class="link" href="BOOST_LOCAL_FUNCTION_TPL.html" title="Macro BOOST_LOCAL_FUNCTION_TPL">BOOST_LOCAL_FUNCTION_TPL</a></code> when declaring multiple local functions on the same line within a template. A part from that, this macro has the exact same syntax as <code class="computeroutput"><a class="link" href="BOOST_LOCAL_FUNCTION_TPL.html" title="Macro BOOST_LOCAL_FUNCTION_TPL">BOOST_LOCAL_FUNCTION_TPL</a></code> (see <code class="computeroutput"><a class="link" href="BOOST_LOCAL_FUNCTION_TPL.html" title="Macro BOOST_LOCAL_FUNCTION_TPL">BOOST_LOCAL_FUNCTION_TPL</a></code> for more information).</p>
38<p><span class="bold"><strong>Parameters:</strong></span> </p>
39<div class="informaltable"><table class="table">
40<colgroup>
41<col>
42<col>
43</colgroup>
44<tbody>
45<tr>
46<td><span class="bold"><strong><code class="computeroutput">id</code></strong></span></td>
47<td>A unique identifier token which can be concatenated by the preprocessor (<code class="computeroutput">__LINE__</code>, <code class="computeroutput">local_function_number_1_on_line_123</code>, etc). </td>
48</tr>
49<tr>
50<td><span class="bold"><strong><code class="computeroutput">declarations</code></strong></span></td>
51<td>Same as the <code class="computeroutput">declarations</code> parameter of the <code class="computeroutput"><a class="link" href="BOOST_LOCAL_FUNCTION_TPL.html" title="Macro BOOST_LOCAL_FUNCTION_TPL">BOOST_LOCAL_FUNCTION_TPL</a></code> macro. </td>
52</tr>
53</tbody>
54</table></div>
55<p>
56</p>
57<p>The <code class="computeroutput"><a class="link" href="BOOST_LOCAL_FUNCTION_NAME.html" title="Macro BOOST_LOCAL_FUNCTION_NAME">BOOST_LOCAL_FUNCTION_NAME</a></code> macro should be used to end each one of the multiple local function declarations as usual (and it will specify a unique name for each local function).</p>
58<p>Outside template, the macro <code class="computeroutput"><a class="link" href="BOOST_LOCAL_FUNCTION_ID.html" title="Macro BOOST_LOCAL_FUNCTION_ID">BOOST_LOCAL_FUNCTION_ID</a></code> should be used to declare multiple local functions on the same line.</p>
59<p><span class="bold"><strong>Note:</strong></span> This macro can be useful when the local function macros are expanded within user-defined macros (because macros all expand on the same line). On some compilers (e.g., MSVC which supports the non-standard <code class="computeroutput">__COUNTER__</code> macro) it might not be necessary to use this macro but the use of this macro when expanding multiple local function macros on the same line is always necessary to ensure portability (this is because this library can only portably use <code class="computeroutput">__LINE__</code> to internally generate unique identifiers).</p>
60<p><span class="bold"><strong>See:</strong></span> <a class="link" href="boost_localfunction/advanced_topics.html" title="Advanced Topics"> Advanced Topics</a> section, <code class="computeroutput"><a class="link" href="BOOST_LOCAL_FUNCTION_TPL.html" title="Macro BOOST_LOCAL_FUNCTION_TPL">BOOST_LOCAL_FUNCTION_TPL</a></code>, <code class="computeroutput"><a class="link" href="BOOST_LOCAL_FUNCTION_NAME.html" title="Macro BOOST_LOCAL_FUNCTION_NAME">BOOST_LOCAL_FUNCTION_NAME</a></code>, <code class="computeroutput"><a class="link" href="BOOST_LOCAL_FUNCTION_ID.html" title="Macro BOOST_LOCAL_FUNCTION_ID">BOOST_LOCAL_FUNCTION_ID</a></code>. </p>
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65<td align="right"><div class="copyright-footer">Copyright &#169; 2009-2012 Lorenzo
66 Caminiti<p>
67 Distributed under the Boost Software License, Version 1.0 (see accompanying
68 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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