apply.hpp

来自「boost库提供标准的C++ API 配合dev c++使用,功能更加强大」· HPP 代码 · 共 36 行

# /* **************************************************************************
#  *                                                                          *
#  *     (C) Copyright Paul Mensonides 2002.  Permission to copy, use,        *
#  *     modify, sell, and distribute this software is granted provided       *
#  *     this copyright notice appears in all copies.  This software is       *
#  *     provided "as is" without express or implied warranty, and with       *
#  *     no claim at to its suitability for any purpose.                      *
#  *                                                                          *
#  ************************************************************************** */
#
# /* See http://www.boost.org for most recent version. */
#
# ifndef BOOST_PREPROCESSOR_FACILITIES_APPLY_HPP
# define BOOST_PREPROCESSOR_FACILITIES_APPLY_HPP
#
# include <boost/preprocessor/config/config.hpp>
# include <boost/preprocessor/control/expr_iif.hpp>
# include <boost/preprocessor/detail/is_unary.hpp>
# include <boost/preprocessor/tuple/rem.hpp>
#
# /* BOOST_PP_APPLY */
#
# if BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG()
#    define BOOST_PP_APPLY(x) BOOST_PP_APPLY_I(x)
#    define BOOST_PP_APPLY_I(x) BOOST_PP_EXPR_IIF(BOOST_PP_IS_UNARY(x), BOOST_PP_TUPLE_REM_1 x)
# elif BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_BCC()
#    define BOOST_PP_APPLY(x) BOOST_PP_APPLY_I(x)
#    define BOOST_PP_APPLY_I(x) BOOST_PP_APPLY_ ## x
#    define BOOST_PP_APPLY_(x) x
#    define BOOST_PP_APPLY_BOOST_PP_NIL
# else
#    define BOOST_PP_APPLY(x) BOOST_PP_EXPR_IIF(BOOST_PP_IS_UNARY(x), BOOST_PP_TUPLE_REM_1 x)
# endif
#
# endif