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| 2 | // (C) Copyright Edward Diener 2011-2015 |
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| 3 | // Use, modification and distribution are subject to the Boost Software License, |
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| 4 | // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at |
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| 5 | // http://www.boost.org/LICENSE_1_0.txt). |
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| 6 | |
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| 7 | #if !defined(BOOST_VMD_EMPTY_HPP) |
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| 8 | #define BOOST_VMD_EMPTY_HPP |
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| 9 | |
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| 10 | #include <boost/vmd/detail/setup.hpp> |
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| 11 | |
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| 12 | #if BOOST_PP_VARIADICS |
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| 13 | |
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| 14 | /* |
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| 15 | |
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| 16 | The succeeding comments in this file are in doxygen format. |
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| 17 | |
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| 18 | */ |
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| 19 | |
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| 20 | /** \file |
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| 21 | */ |
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| 22 | |
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| 23 | /** \def BOOST_VMD_EMPTY(...) |
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| 24 | |
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| 25 | \brief Outputs emptiness. |
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| 26 | |
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| 27 | ... = any variadic parameters. The parameters are ignored. |
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| 28 | |
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| 29 | This macro is used to output emptiness ( nothing ) no matter |
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| 30 | what is passed to it. |
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| 31 | |
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| 32 | If you use this macro to return a result, as in 'result BOOST_VMD_EMPTY' |
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| 33 | subsequently invoked, you should surround the result with |
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| 34 | BOOST_VMD_IDENTITY_RESULT to smooth over a VC++ problem. |
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| 35 | |
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| 36 | */ |
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| 37 | |
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| 38 | #define BOOST_VMD_EMPTY(...) |
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| 39 | |
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| 40 | #endif /* BOOST_PP_VARIADICS */ |
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| 41 | #endif /* BOOST_VMD_EMPTY_HPP */ |
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| 42 | |
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