// Copyright Daniel Wallin 2006.
|
// 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)
|
|
#ifndef BOOST_PARAMETER_AUX_PREPROCESSOR_IMPL_ARITY_RANGE_HPP
|
#define BOOST_PARAMETER_AUX_PREPROCESSOR_IMPL_ARITY_RANGE_HPP
|
|
// Helper macros for BOOST_PARAMETER_ARITY_RANGE.
|
#define BOOST_PARAMETER_ARITY_RANGE_M_optional(state) state
|
#define BOOST_PARAMETER_ARITY_RANGE_M_deduced_optional(state) state
|
|
#include <boost/preprocessor/arithmetic/inc.hpp>
|
|
#define BOOST_PARAMETER_ARITY_RANGE_M_required(state) BOOST_PP_INC(state)
|
#define BOOST_PARAMETER_ARITY_RANGE_M_deduced_required(state) \
|
BOOST_PP_INC(state)
|
/**/
|
|
#include <boost/parameter/aux_/preprocessor/impl/argument_specs.hpp>
|
#include <boost/preprocessor/cat.hpp>
|
|
#define BOOST_PARAMETER_ARITY_RANGE_M(s, state, x) \
|
BOOST_PP_CAT( \
|
BOOST_PARAMETER_ARITY_RANGE_M_ \
|
, BOOST_PARAMETER_FN_ARG_QUALIFIER(x) \
|
)(state)
|
/**/
|
|
#include <boost/preprocessor/seq/fold_left.hpp>
|
#include <boost/preprocessor/seq/size.hpp>
|
|
// Calculates [begin, end) arity range.
|
#define BOOST_PARAMETER_ARITY_RANGE(args) \
|
( \
|
BOOST_PP_SEQ_FOLD_LEFT(BOOST_PARAMETER_ARITY_RANGE_M, 0, args) \
|
, BOOST_PP_INC(BOOST_PP_SEQ_SIZE(args)) \
|
)
|
/**/
|
|
#endif // include guard
|
