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| <title>BOOST_PP_CAT</title> |
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| The <b>BOOST_PP_CAT</b> macro concatenates its arguments after they have been expanded. |
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| <h4>Usage</h4> |
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| <b>BOOST_PP_CAT</b>(<i>a</i>, <i>b</i>) |
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| <h4>Arguments</h4> |
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| <dt>a</dt> |
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| The left operand of the concatenation. |
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| <dt>b</dt> |
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| The right operand of the concatenation. |
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| <h4>Remarks</h4> |
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| The preprocessor token-pasting operator (<b>##</b>) prevents arguments from expanding. |
| This macro allows its arguments to expand before concatenation. |
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| Concatenation must not result in an invocation of a macro that uses <b>BOOST_PP_CAT</b>. |
| If that happens, <b>BOOST_PP_CAT</b> will not expand the second time. |
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| <!-- <h4>See Also</h4> --> |
| <h4>Requirements</h4> |
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| <b>Header:</b> <a href="../headers/cat.html"><boost/preprocessor/cat.hpp></a> |
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| <h4>Sample Code</h4> |
| <div><pre> |
| #include <<a href="../headers/cat.html">boost/preprocessor/cat.hpp</a>> |
| |
| <a href="cat.html">BOOST_PP_CAT</a>(x, <a href="cat.html">BOOST_PP_CAT</a>(y, z)) // expands to xyz |
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| <div style="margin-left: 0px;"> |
| <i>© Copyright <a href="http://www.housemarque.com" target="_top">Housemarque Oy</a> 2002</i> |
| </br><i>© Copyright Paul Mensonides 2002</i> |
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| <div style="margin-left: 0px;"> |
| <p><small>Distributed under the Boost Software License, Version 1.0. (See |
| accompanying file <a href="../../../../LICENSE_1_0.txt">LICENSE_1_0.txt</a> or |
| copy at <a href= |
| "http://www.boost.org/LICENSE_1_0.txt">www.boost.org/LICENSE_1_0.txt</a>)</small></p> |
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