// Copyright Daniel Wallin 2006.
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// Distributed under the Boost Software License, Version 1.0.
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// (See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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#ifndef BOOST_PARAMETER_AUX_PREPROCESSOR_IMPL_SPLIT_ARGS_HPP
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#define BOOST_PARAMETER_AUX_PREPROCESSOR_IMPL_SPLIT_ARGS_HPP
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#include <boost/preprocessor/tuple/elem.hpp>
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// Accessor macros for the split_args tuple.
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#define BOOST_PARAMETER_SPLIT_ARG_REQ_COUNT(x) BOOST_PP_TUPLE_ELEM(4, 0, x)
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#define BOOST_PARAMETER_SPLIT_ARG_REQ_SEQ(x) BOOST_PP_TUPLE_ELEM(4, 1, x)
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#define BOOST_PARAMETER_SPLIT_ARG_OPT_COUNT(x) BOOST_PP_TUPLE_ELEM(4, 2, x)
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#define BOOST_PARAMETER_SPLIT_ARG_OPT_SEQ(x) BOOST_PP_TUPLE_ELEM(4, 3, x)
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#include <boost/preprocessor/arithmetic/inc.hpp>
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#include <boost/preprocessor/seq/push_back.hpp>
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// Helper macros for BOOST_PARAMETER_FUNCTION_SPLIT_ARGS.
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#define BOOST_PARAMETER_FUNCTION_SPLIT_ARG_required(s_a, arg) \
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( \
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BOOST_PP_INC(BOOST_PARAMETER_SPLIT_ARG_REQ_COUNT(s_a)) \
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, BOOST_PP_SEQ_PUSH_BACK(BOOST_PARAMETER_SPLIT_ARG_REQ_SEQ(s_a), arg) \
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, BOOST_PARAMETER_SPLIT_ARG_OPT_COUNT(s_a) \
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, BOOST_PARAMETER_SPLIT_ARG_OPT_SEQ(s_a) \
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)
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/**/
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#define BOOST_PARAMETER_FUNCTION_SPLIT_ARG_deduced_required(split_args, arg) \
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BOOST_PARAMETER_FUNCTION_SPLIT_ARG_required(split_args, arg)
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/**/
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#define BOOST_PARAMETER_FUNCTION_SPLIT_ARG_optional(s_a, arg) \
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( \
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BOOST_PARAMETER_SPLIT_ARG_REQ_COUNT(s_a) \
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, BOOST_PARAMETER_SPLIT_ARG_REQ_SEQ(s_a) \
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, BOOST_PP_INC(BOOST_PARAMETER_SPLIT_ARG_OPT_COUNT(s_a)) \
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, BOOST_PP_SEQ_PUSH_BACK(BOOST_PARAMETER_SPLIT_ARG_OPT_SEQ(s_a), arg) \
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)
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/**/
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#define BOOST_PARAMETER_FUNCTION_SPLIT_ARG_deduced_optional(split_args, arg) \
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BOOST_PARAMETER_FUNCTION_SPLIT_ARG_optional(split_args, arg)
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/**/
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#include <boost/parameter/aux_/preprocessor/impl/argument_specs.hpp>
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#include <boost/preprocessor/cat.hpp>
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#define BOOST_PARAMETER_FUNCTION_SPLIT_ARG(s, split_args, arg) \
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BOOST_PP_CAT( \
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BOOST_PARAMETER_FUNCTION_SPLIT_ARG_ \
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, BOOST_PARAMETER_FN_ARG_QUALIFIER(arg) \
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)(split_args, arg)
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/**/
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#include <boost/preprocessor/seq/fold_left.hpp>
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#include <boost/preprocessor/seq/seq.hpp>
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// Expands from the flattened BOOST_PARAMETER_FUNCTION et. al. arg sequence to
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// the tuple (required_count, required_args, optional_count, optional_args).
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#define BOOST_PARAMETER_FUNCTION_SPLIT_ARGS(args) \
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BOOST_PP_SEQ_FOLD_LEFT( \
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BOOST_PARAMETER_FUNCTION_SPLIT_ARG \
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, (0, BOOST_PP_SEQ_NIL, 0, BOOST_PP_SEQ_NIL) \
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, args \
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)
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/**/
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#endif // include guard
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