2012-05-16 01:42:04 +00:00
|
|
|
|
|
|
|
|
// NO INCLUDE GUARDS, THE HEADER IS INTENDED FOR MULTIPLE INCLUSION
|
|
|
|
|
|
|
|
|
|
// Copyright Aleksey Gurtovoy 2000-2004
|
|
|
|
|
//
|
|
|
|
|
// 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/libs/mpl for documentation.
|
|
|
|
|
|
|
|
|
|
// $Id: count_args.hpp 49267 2008-10-11 06:19:02Z agurtovoy $
|
|
|
|
|
// $Date: 2008-10-11 02:19:02 -0400 (Sat, 11 Oct 2008) $
|
|
|
|
|
// $Revision: 49267 $
|
|
|
|
|
|
|
|
|
|
#include <boost/preprocessor/expr_if.hpp>
|
|
|
|
|
#include <boost/preprocessor/inc.hpp>
|
|
|
|
|
#include <boost/preprocessor/cat.hpp>
|
|
|
|
|
|
|
|
|
|
#if !defined(AUX778076_COUNT_ARGS_PARAM_NAME)
|
|
|
|
|
# define AUX778076_COUNT_ARGS_PARAM_NAME T
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
#if !defined(AUX778076_COUNT_ARGS_TEMPLATE_PARAM)
|
|
|
|
|
# define AUX778076_COUNT_ARGS_TEMPLATE_PARAM typename AUX778076_COUNT_ARGS_PARAM_NAME
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
// local macros, #undef-ined at the end of the header
|
|
|
|
|
|
|
|
|
|
#if !defined(AUX778076_COUNT_ARGS_USE_STANDARD_PP_PRIMITIVES)
|
|
|
|
|
|
|
|
|
|
# include <boost/mpl/aux_/preprocessor/repeat.hpp>
|
|
|
|
|
# include <boost/mpl/aux_/preprocessor/params.hpp>
|
|
|
|
|
|
|
|
|
|
# define AUX778076_COUNT_ARGS_REPEAT BOOST_MPL_PP_REPEAT
|
|
|
|
|
# define AUX778076_COUNT_ARGS_PARAMS(param) \
|
|
|
|
|
BOOST_MPL_PP_PARAMS( \
|
|
|
|
|
AUX778076_COUNT_ARGS_ARITY \
|
|
|
|
|
, param \
|
|
|
|
|
) \
|
|
|
|
|
/**/
|
|
|
|
|
|
|
|
|
|
#else
|
|
|
|
|
|
|
|
|
|
# include <boost/preprocessor/enum_shifted_params.hpp>
|
|
|
|
|
# include <boost/preprocessor/repeat.hpp>
|
|
|
|
|
# include <boost/preprocessor/inc.hpp>
|
|
|
|
|
|
|
|
|
|
# define AUX778076_COUNT_ARGS_REPEAT BOOST_PP_REPEAT
|
|
|
|
|
# define AUX778076_COUNT_ARGS_PARAMS(param) \
|
|
|
|
|
BOOST_PP_ENUM_SHIFTED_PARAMS( \
|
|
|
|
|
BOOST_PP_INC(AUX778076_COUNT_ARGS_ARITY) \
|
|
|
|
|
, param \
|
|
|
|
|
) \
|
|
|
|
|
/**/
|
|
|
|
|
|
|
|
|
|
#endif // AUX778076_COUNT_ARGS_USE_STANDARD_PP_PRIMITIVES
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
#define AUX778076_IS_ARG_TEMPLATE_NAME \
|
|
|
|
|
BOOST_PP_CAT(is_,BOOST_PP_CAT(AUX778076_COUNT_ARGS_PREFIX,_arg)) \
|
|
|
|
|
/**/
|
|
|
|
|
|
|
|
|
|
#define AUX778076_COUNT_ARGS_FUNC(unused, i, param) \
|
|
|
|
|
BOOST_PP_EXPR_IF(i, +) \
|
|
|
|
|
AUX778076_IS_ARG_TEMPLATE_NAME<BOOST_PP_CAT(param,BOOST_PP_INC(i))>::value \
|
|
|
|
|
/**/
|
|
|
|
|
|
|
|
|
|
// is_<xxx>_arg
|
|
|
|
|
template< AUX778076_COUNT_ARGS_TEMPLATE_PARAM >
|
|
|
|
|
struct AUX778076_IS_ARG_TEMPLATE_NAME
|
|
|
|
|
{
|
|
|
|
|
BOOST_STATIC_CONSTANT(bool, value = true);
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
template<>
|
|
|
|
|
struct AUX778076_IS_ARG_TEMPLATE_NAME<AUX778076_COUNT_ARGS_DEFAULT>
|
|
|
|
|
{
|
|
|
|
|
BOOST_STATIC_CONSTANT(bool, value = false);
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
// <xxx>_count_args
|
|
|
|
|
template<
|
|
|
|
|
AUX778076_COUNT_ARGS_PARAMS(AUX778076_COUNT_ARGS_TEMPLATE_PARAM)
|
|
|
|
|
>
|
|
|
|
|
struct BOOST_PP_CAT(AUX778076_COUNT_ARGS_PREFIX,_count_args)
|
|
|
|
|
{
|
|
|
|
|
BOOST_STATIC_CONSTANT(int, value = AUX778076_COUNT_ARGS_REPEAT(
|
|
|
|
|
AUX778076_COUNT_ARGS_ARITY
|
|
|
|
|
, AUX778076_COUNT_ARGS_FUNC
|
|
|
|
|
, AUX778076_COUNT_ARGS_PARAM_NAME
|
|
|
|
|
));
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
#undef AUX778076_COUNT_ARGS_FUNC
|
|
|
|
|
#undef AUX778076_IS_ARG_TEMPLATE_NAME
|
|
|
|
|
#undef AUX778076_COUNT_ARGS_PARAMS
|
|
|
|
|
#undef AUX778076_COUNT_ARGS_REPEAT
|
|
|
|
|
|
|
|
|
|
#undef AUX778076_COUNT_ARGS_ARITY
|
|
|
|
|
#undef AUX778076_COUNT_ARGS_DEFAULT
|
|
|
|
|
#undef AUX778076_COUNT_ARGS_PREFIX
|
|
|
|
|
#undef AUX778076_COUNT_ARGS_USE_STANDARD_PP_PRIMITIVES
|
|
|
|
|
#undef AUX778076_COUNT_ARGS_TEMPLATE_PARAM
|
|
|
|
|
#undef AUX778076_COUNT_ARGS_PARAM_NAME
|
