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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>
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- #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
- </pre></div>
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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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