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