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predicate support for object-like config macros

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[SVN r16767]
This commit is contained in:
Paul Mensonides
2003-01-06 01:07:12 +00:00
parent ad641c4b14
commit fbe6a2a52e
3 changed files with 99 additions and 0 deletions
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24
include/boost/preprocessor/facilities/is_1.hpp Normal file
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# /* **************************************************************************
# * *
# * (C) Copyright Paul Mensonides 2003. 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_IS_1_HPP
# define BOOST_PREPROCESSOR_FACILITIES_IS_1_HPP
#
# include <boost/preprocessor/cat.hpp>
# include <boost/preprocessor/facilities/is_empty.hpp>
#
# /* BOOST_PP_IS_1 */
#
# define BOOST_PP_IS_1(x) BOOST_PP_IS_EMPTY(BOOST_PP_CAT(BOOST_PP_IS_1_HELPER_, x))
# define BOOST_PP_IS_1_HELPER_1
#
# endif

44
include/boost/preprocessor/facilities/is_empty.hpp Normal file
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# /* **************************************************************************
# * *
# * (C) Copyright Paul Mensonides 2003. 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_IS_EMPTY_HPP
# define BOOST_PREPROCESSOR_FACILITIES_IS_EMPTY_HPP
#
# include <boost/preprocessor/config/config.hpp>
# include <boost/preprocessor/cat.hpp>
# include <boost/preprocessor/tuple/elem.hpp>
# include <boost/preprocessor/facilities/empty.hpp>
# include <boost/preprocessor/detail/split.hpp>
#
# /* BOOST_PP_IS_EMPTY */
#
# if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_MSVC() && ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_MWCC()
# define BOOST_PP_IS_EMPTY(x) BOOST_PP_IS_EMPTY_I(x BOOST_PP_IS_EMPTY_HELPER)
# define BOOST_PP_IS_EMPTY_I(contents) BOOST_PP_TUPLE_ELEM(2, 1, (BOOST_PP_IS_EMPTY_DEF_ ## contents()))
# define BOOST_PP_IS_EMPTY_DEF_BOOST_PP_IS_EMPTY_HELPER 1, 1 BOOST_PP_EMPTY
# define BOOST_PP_IS_EMPTY_HELPER() , 0
# else
# if BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_MSVC()
# define BOOST_PP_IS_EMPTY(x) BOOST_PP_IS_EMPTY_I(BOOST_PP_IS_EMPTY_HELPER x ())
# define BOOST_PP_IS_EMPTY_I(test) BOOST_PP_IS_EMPTY_II(BOOST_PP_SPLIT(0, BOOST_PP_CAT(BOOST_PP_IS_EMPTY_DEF_, test)))
# define BOOST_PP_IS_EMPTY_II(id) id
# else
# define BOOST_PP_IS_EMPTY(x) BOOST_PP_IS_EMPTY_I((BOOST_PP_IS_EMPTY_HELPER x ()))
# define BOOST_PP_IS_EMPTY_I(par) BOOST_PP_IS_EMPTY_II ## par
# define BOOST_PP_IS_EMPTY_II(test) BOOST_PP_SPLIT(0, BOOST_PP_CAT(BOOST_PP_IS_EMPTY_DEF_, test))
# endif
# define BOOST_PP_IS_EMPTY_HELPER() 1
# define BOOST_PP_IS_EMPTY_DEF_1 1, BOOST_PP_NIL
# define BOOST_PP_IS_EMPTY_DEF_BOOST_PP_IS_EMPTY_HELPER 0, BOOST_PP_NIL
# endif
#
# endif

31
include/boost/preprocessor/facilities/is_empty_or_1.hpp Normal file
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# /* **************************************************************************
# * *
# * (C) Copyright Paul Mensonides 2003. 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_IS_EMPTY_OR_1_HPP
# define BOOST_PREPROCESSOR_FACILITIES_IS_EMPTY_OR_1_HPP
#
# include <boost/preprocessor/control/iif.hpp>
# include <boost/preprocessor/facilities/empty.hpp>
# include <boost/preprocessor/facilities/is_1.hpp>
# include <boost/preprocessor/facilities/is_empty.hpp>
#
# /* BOOST_PP_IS_EMPTY_OR_1 */
#
# define BOOST_PP_IS_EMPTY_OR_1(x) \
BOOST_PP_IIF( \
BOOST_PP_IS_EMPTY(x BOOST_PP_EMPTY()), \
1 BOOST_PP_EMPTY, \
BOOST_PP_IS_1 \
)(x) \
/**/
#
# endif