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preliminary set support

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[SVN r15909]
This commit is contained in:
Paul Mensonides
2002-10-13 06:11:19 +00:00
parent 33daabd87d
commit d701bf8d47
35 changed files with 3460 additions and 2 deletions
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31
include/boost/preprocessor/set/first_n.hpp Normal file
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# /* **************************************************************************
# * *
# * (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_SET_FIRST_N_HPP
# define BOOST_PREPROCESSOR_SET_FIRST_N_HPP
#
# include <boost/preprocessor/config/config.hpp>
# include <boost/preprocessor/control/if.hpp>
# include <boost/preprocessor/set/detail/split.hpp>
# include <boost/preprocessor/tuple/eat.hpp>
# include <boost/preprocessor/tuple/elem.hpp>
#
# /* BOOST_PP_SET_FIRST_N */
#
# if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG()
# define BOOST_PP_SET_FIRST_N(n, set) BOOST_PP_IF(n, BOOST_PP_TUPLE_ELEM, BOOST_PP_TUPLE_EAT_3)(2, 0, BOOST_PP_SET_SPLIT(n, set))
# else
# define BOOST_PP_SET_FIRST_N(n, set) BOOST_PP_SET_FIRST_N_I(n, set)
# define BOOST_PP_SET_FIRST_N_I(n, set) BOOST_PP_IF(n, BOOST_PP_TUPLE_ELEM, BOOST_PP_TUPLE_EAT_3)(2, 0, BOOST_PP_SET_SPLIT(n, set))
# endif
#
# endif