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26 | <a name="BOOST_SCOPE_EXIT_ALL_ID"></a><div class="titlepage"></div> | |
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28 | <h2><span class="refentrytitle">Macro BOOST_SCOPE_EXIT_ALL_ID</span></h2> | |
29 | <p>BOOST_SCOPE_EXIT_ALL_ID — This macro allows to expand on the same line multiple scope exits that capture all variables in scope (C++11 only). </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: <<a class="link" href="reference.html#header.boost.scope_exit_hpp" title="Header <boost/scope_exit.hpp>">boost/scope_exit.hpp</a>> | |
33 | ||
34 | </span>BOOST_SCOPE_EXIT_ALL_ID(id, capture_list)</pre></div> | |
35 | <div class="refsect1"> | |
36 | <a name="id879100"></a><h2>Description</h2> | |
37 | <p>This macro is equivalent to <code class="computeroutput"><a class="link" href="BOOST_SCOPE_EXIT_ALL.html" title="Macro BOOST_SCOPE_EXIT_ALL">BOOST_SCOPE_EXIT_ALL</a></code> but it can be expanded multiple times on the same line if different identifiers <code class="computeroutput">id</code> are provided for each expansion (see <code class="computeroutput"><a class="link" href="BOOST_SCOPE_EXIT_ALL.html" title="Macro BOOST_SCOPE_EXIT_ALL">BOOST_SCOPE_EXIT_ALL</a></code> for more information). As with <code class="computeroutput"><a class="link" href="BOOST_SCOPE_EXIT_ALL.html" title="Macro BOOST_SCOPE_EXIT_ALL">BOOST_SCOPE_EXIT_ALL</a></code>, this macro is only available on C++11 compilers (specifically, on C++11 compilers that do not define the Boost.Config <code class="computeroutput">BOOST_NO_CXX11_LAMBDAS</code> macro).</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">scope_exit_number_1_on_line_123</code>, a combination of alphanumeric tokens, etc). </td> | |
48 | </tr> | |
49 | <tr> | |
50 | <td><span class="bold"><strong><code class="computeroutput">capture_list</code></strong></span></td> | |
51 | <td>Same as the <code class="computeroutput">capture_list</code> parameter of the <code class="computeroutput"><a class="link" href="BOOST_SCOPE_EXIT_ALL.html" title="Macro BOOST_SCOPE_EXIT_ALL">BOOST_SCOPE_EXIT_ALL</a></code> macro. </td> | |
52 | </tr> | |
53 | </tbody> | |
54 | </table></div> | |
55 | <p> | |
56 | </p> | |
57 | <p><span class="bold"><strong>Note:</strong></span> This macro can be useful when the scope exit macros are expanded within user-defined macros (because nested macros 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 is always necessary to ensure portability when expanding multiple scope exit declarations on the same line.</p> | |
58 | <p><span class="bold"><strong>See:</strong></span> <a class="link" href="scope_exit/tutorial.html" title="Tutorial"> Tutorial</a> section, <code class="computeroutput"><a class="link" href="BOOST_SCOPE_EXIT_ALL.html" title="Macro BOOST_SCOPE_EXIT_ALL">BOOST_SCOPE_EXIT_ALL</a></code>, <code class="computeroutput"><a class="link" href="BOOST_SCOPE_EXIT_ID.html" title="Macro BOOST_SCOPE_EXIT_ID">BOOST_SCOPE_EXIT_ID</a></code>. </p> | |
59 | </div> | |
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61 | <table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> | |
62 | <td align="left"></td> | |
63 | <td align="right"><div class="copyright-footer">Copyright © 2006-2012 Alexander Nasonov, Lorenzo Caminiti<p> | |
64 | Distributed under the Boost Software License, Version 1.0 (see accompanying | |
65 | 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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