56 lines
1.7 KiB
Plaintext
56 lines
1.7 KiB
Plaintext
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# /* **************************************************************************
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# * *
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# * (C) Copyright Edward Diener 2014.
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# * Distributed under the Boost Software License, Version 1.0. (See
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# * accompanying file LICENSE_1_0.txt or copy at
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# * http://www.boost.org/LICENSE_1_0.txt)
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# * *
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# ************************************************************************** */
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#
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# /* See http://www.boost.org for most recent version. */
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#
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#ifndef BOOST_PREPROCESSOR_DETAIL_IS_EMPTY_HPP
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#define BOOST_PREPROCESSOR_DETAIL_IS_EMPTY_HPP
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#include <boost/preprocessor/punctuation/is_begin_parens.hpp>
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#if BOOST_PP_VARIADICS_MSVC
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# pragma warning(once:4002)
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#define BOOST_PP_DETAIL_IS_EMPTY_IIF_0(t, b) b
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#define BOOST_PP_DETAIL_IS_EMPTY_IIF_1(t, b) t
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#else
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#define BOOST_PP_DETAIL_IS_EMPTY_IIF_0(t, ...) __VA_ARGS__
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#define BOOST_PP_DETAIL_IS_EMPTY_IIF_1(t, ...) t
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#endif
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#if BOOST_PP_VARIADICS_MSVC && _MSC_VER <= 1400
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#define BOOST_PP_DETAIL_IS_EMPTY_PROCESS(param) \
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BOOST_PP_IS_BEGIN_PARENS \
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( \
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BOOST_PP_DETAIL_IS_EMPTY_NON_FUNCTION_C param () \
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) \
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/**/
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#else
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#define BOOST_PP_DETAIL_IS_EMPTY_PROCESS(...) \
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BOOST_PP_IS_BEGIN_PARENS \
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( \
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BOOST_PP_DETAIL_IS_EMPTY_NON_FUNCTION_C __VA_ARGS__ () \
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) \
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/**/
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#endif
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#define BOOST_PP_DETAIL_IS_EMPTY_PRIMITIVE_CAT(a, b) a ## b
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#define BOOST_PP_DETAIL_IS_EMPTY_IIF(bit) BOOST_PP_DETAIL_IS_EMPTY_PRIMITIVE_CAT(BOOST_PP_DETAIL_IS_EMPTY_IIF_,bit)
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#define BOOST_PP_DETAIL_IS_EMPTY_NON_FUNCTION_C(...) ()
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#endif /* BOOST_PREPROCESSOR_DETAIL_IS_EMPTY_HPP */
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