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// Copyright Daniel Wallin 2005.
// 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_FLATTEN_HPP
#define BOOST_PARAMETER_AUX_PREPROCESSOR_IMPL_FLATTEN_HPP
#define BOOST_PARAMETER_AUX_PP_FLATTEN_SPLIT_required required,
#define BOOST_PARAMETER_AUX_PP_FLATTEN_SPLIT_optional optional,
#define BOOST_PARAMETER_AUX_PP_FLATTEN_SPLIT_deduced deduced,
#define BOOST_PARAMETER_AUX_PP_FLATTEN_IDENTITY(x) x
#define BOOST_PARAMETER_AUX_PP_FLATTEN_SPEC0_DUMMY_ELEM(z, n, data) ~
#include <boost/preprocessor/cat.hpp>
#define BOOST_PARAMETER_AUX_PP_FLATTEN_SPLIT(sub) \
BOOST_PP_CAT(BOOST_PARAMETER_AUX_PP_FLATTEN_SPLIT_, sub)
/**/
#define BOOST_PARAMETER_AUX_PP_FLATTEN_SPEC_AS_DEDUCED(x) \
BOOST_PP_CAT(deduced_, x)
/**/
#include <boost/preprocessor/detail/split.hpp>
#define BOOST_PARAMETER_AUX_PP_FLATTEN_QUALIFIER(sub) \
BOOST_PP_SPLIT(0, BOOST_PARAMETER_AUX_PP_FLATTEN_SPLIT(sub))
/**/
#define BOOST_PARAMETER_AUX_PP_FLATTEN_ARGS(sub) \
BOOST_PP_SPLIT(1, BOOST_PARAMETER_AUX_PP_FLATTEN_SPLIT(sub))
/**/
#include <boost/preprocessor/tuple/elem.hpp>
#define BOOST_PARAMETER_AUX_PP_FLATTEN_ARITY_optional(arities) \
BOOST_PP_TUPLE_ELEM(3, 0, arities)
/**/
#define BOOST_PARAMETER_AUX_PP_FLATTEN_ARITY_required(arities) \
BOOST_PP_TUPLE_ELEM(3, 1, arities)
/**/
#include <boost/preprocessor/arithmetic/sub.hpp>
#include <boost/preprocessor/repetition/enum_trailing.hpp>
#include <boost/preprocessor/tuple/rem.hpp>
#define BOOST_PARAMETER_AUX_PP_FLATTEN_SPEC0(r, n, elem, data) \
(( \
BOOST_PP_TUPLE_ELEM(3, 2, data) \
, BOOST_PP_TUPLE_REM(BOOST_PP_TUPLE_ELEM(3, 0, data)) elem \
BOOST_PP_ENUM_TRAILING( \
BOOST_PP_SUB( \
BOOST_PP_TUPLE_ELEM(3, 1, data) \
, BOOST_PP_TUPLE_ELEM(3, 0, data) \
) \
, BOOST_PARAMETER_AUX_PP_FLATTEN_SPEC0_DUMMY_ELEM \
, ~ \
) \
))
/**/
#include <boost/parameter/aux_/preprocessor/impl/for_each.hpp>
#define BOOST_PARAMETER_AUX_PP_FLATTEN_SPEC_AUX( \
r, arity, max_arity, spec, xform \
) \
BOOST_PARAMETER_AUX_PP_FOR_EACH_R( \
r \
, arity \
, BOOST_PARAMETER_AUX_PP_FLATTEN_ARGS(spec) \
, ( \
arity \
, max_arity \
, xform(BOOST_PARAMETER_AUX_PP_FLATTEN_QUALIFIER(spec)) \
) \
, BOOST_PARAMETER_AUX_PP_FLATTEN_SPEC0 \
)
/**/
#define BOOST_PARAMETER_AUX_PP_FLATTEN_SPEC_optional(r, arities, spec) \
BOOST_PARAMETER_AUX_PP_FLATTEN_SPEC_AUX( \
r \
, BOOST_PP_CAT( \
BOOST_PARAMETER_AUX_PP_FLATTEN_ARITY_ \
, BOOST_PARAMETER_AUX_PP_FLATTEN_QUALIFIER(spec) \
)(arities) \
, BOOST_PP_TUPLE_ELEM(3, 2, arities) \
, spec \
, BOOST_PARAMETER_AUX_PP_FLATTEN_IDENTITY \
)
/**/
#define BOOST_PARAMETER_AUX_PP_FLATTEN_SPEC_required(r, arities, spec) \
BOOST_PARAMETER_AUX_PP_FLATTEN_SPEC_optional(r, arities, spec)
/**/
#define BOOST_PARAMETER_AUX_PP_FLATTEN_SPEC_deduced_M(r, arities, n, spec) \
BOOST_PARAMETER_AUX_PP_FLATTEN_SPEC_AUX( \
r \
, BOOST_PP_CAT( \
BOOST_PARAMETER_AUX_PP_FLATTEN_ARITY_ \
, BOOST_PARAMETER_AUX_PP_FLATTEN_QUALIFIER(spec) \
)(arities) \
, BOOST_PP_TUPLE_ELEM(3, 2, arities) \
, spec \
, BOOST_PARAMETER_AUX_PP_FLATTEN_SPEC_AS_DEDUCED \
)
/**/
#include <boost/preprocessor/seq/for_each_i.hpp>
#define BOOST_PARAMETER_AUX_PP_FLATTEN_SPEC_deduced(r, arities, spec) \
BOOST_PP_SEQ_FOR_EACH_I_R( \
r \
, BOOST_PARAMETER_AUX_PP_FLATTEN_SPEC_deduced_M \
, arities \
, BOOST_PARAMETER_AUX_PP_FLATTEN_ARGS(spec) \
)
/**/
#define BOOST_PARAMETER_AUX_PP_FLATTEN_SPEC(r, arities, spec) \
BOOST_PP_CAT( \
BOOST_PARAMETER_AUX_PP_FLATTEN_SPEC_ \
, BOOST_PARAMETER_AUX_PP_FLATTEN_QUALIFIER(spec) \
)(r, arities, spec)
/**/
#include <boost/preprocessor/seq/for_each.hpp>
#define BOOST_PARAMETER_AUX_PP_FLATTEN( \
opt_arity, req_arity, wanted_arity, specs \
) \
BOOST_PP_SEQ_FOR_EACH( \
BOOST_PARAMETER_AUX_PP_FLATTEN_SPEC \
, (opt_arity, req_arity, wanted_arity) \
, specs \
)
/**/
#endif // include guard
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