56 lines
2.1 KiB
C++
56 lines
2.1 KiB
C++
// Copyright David Abrahams 2005. Distributed under the Boost
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// Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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#ifndef BOOST_PARAMETER_MATCH_DWA2005714_HPP
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# define BOOST_PARAMETER_MATCH_DWA2005714_HPP
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# include <boost/detail/workaround.hpp>
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# include <boost/preprocessor/seq/enum.hpp>
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# if BOOST_WORKAROUND(__MWERKS__, <= 0x3003)
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// Temporary version of BOOST_PP_SEQ_ENUM until Paul M. integrates the workaround.
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# define BOOST_PARAMETER_SEQ_ENUM_I(size,seq) BOOST_PP_CAT(BOOST_PP_SEQ_ENUM_, size) seq
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# define BOOST_PARAMETER_SEQ_ENUM(seq) BOOST_PARAMETER_SEQ_ENUM_I(BOOST_PP_SEQ_SIZE(seq), seq)
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# else
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# define BOOST_PARAMETER_SEQ_ENUM(seq) BOOST_PP_SEQ_ENUM(seq)
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# endif
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# if BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x564))
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# include <boost/parameter/config.hpp>
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# include <boost/parameter/aux_/void.hpp>
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# include <boost/preprocessor/arithmetic/sub.hpp>
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# include <boost/preprocessor/facilities/intercept.hpp>
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# include <boost/preprocessor/repetition/enum_trailing_params.hpp>
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# define BOOST_PARAMETER_MATCH_DEFAULTS(ArgTypes) \
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BOOST_PP_ENUM_TRAILING_PARAMS( \
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BOOST_PP_SUB( \
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BOOST_PARAMETER_MAX_ARITY \
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, BOOST_PP_SEQ_SIZE(ArgTypes) \
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) \
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, ::boost::parameter::void_ BOOST_PP_INTERCEPT \
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)
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# else
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# define BOOST_PARAMETER_MATCH_DEFAULTS(ArgTypes)
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# endif
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//
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// Generates, e.g.
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//
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// typename dfs_params::match<A1,A2>::type name = dfs_params()
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//
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// with workarounds for Borland compatibility.
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//
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# define BOOST_PARAMETER_MATCH(ParameterSpec, ArgTypes, name) \
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typename ParameterSpec ::match< \
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BOOST_PARAMETER_SEQ_ENUM(ArgTypes) \
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BOOST_PARAMETER_MATCH_DEFAULTS(ArgTypes) \
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>::type name = ParameterSpec ()
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#endif // BOOST_PARAMETER_MATCH_DWA2005714_HPP
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