12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758 |
- # /* **************************************************************************
- # * *
- # * (C) Copyright Edward Diener 2014.
- # * Distributed under the Boost Software License, Version 1.0. (See
- # * accompanying file LICENSE_1_0.txt or copy at
- # * http://www.boost.org/LICENSE_1_0.txt)
- # * *
- # ************************************************************************** */
- #
- # /* See http://www.boost.org for most recent version. */
- #
- # ifndef BOOST_PREPROCESSOR_FACILITIES_IS_EMPTY_VARIADIC_HPP
- # define BOOST_PREPROCESSOR_FACILITIES_IS_EMPTY_VARIADIC_HPP
- #
- # include <boost/preprocessor/config/config.hpp>
- #
- # if BOOST_PP_VARIADICS
- #
- # include <boost/preprocessor/punctuation/is_begin_parens.hpp>
- # include <boost/preprocessor/facilities/detail/is_empty.hpp>
- #
- #if BOOST_PP_VARIADICS_MSVC && _MSC_VER <= 1400
- #
- #define BOOST_PP_IS_EMPTY(param) \
- BOOST_PP_DETAIL_IS_EMPTY_IIF \
- ( \
- BOOST_PP_IS_BEGIN_PARENS \
- ( \
- param \
- ) \
- ) \
- ( \
- BOOST_PP_IS_EMPTY_ZERO, \
- BOOST_PP_DETAIL_IS_EMPTY_PROCESS \
- ) \
- (param) \
- /**/
- #define BOOST_PP_IS_EMPTY_ZERO(param) 0
- # else
- #define BOOST_PP_IS_EMPTY(...) \
- BOOST_PP_DETAIL_IS_EMPTY_IIF \
- ( \
- BOOST_PP_IS_BEGIN_PARENS \
- ( \
- __VA_ARGS__ \
- ) \
- ) \
- ( \
- BOOST_PP_IS_EMPTY_ZERO, \
- BOOST_PP_DETAIL_IS_EMPTY_PROCESS \
- ) \
- (__VA_ARGS__) \
- /**/
- #define BOOST_PP_IS_EMPTY_ZERO(...) 0
- # endif /* BOOST_PP_VARIADICS_MSVC && _MSC_VER <= 1400 */
- # endif /* BOOST_PP_VARIADICS */
- # endif /* BOOST_PREPROCESSOR_FACILITIES_IS_EMPTY_VARIADIC_HPP */
|