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94 lines
2.9 KiB
94 lines
2.9 KiB
3 years ago
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#if !defined(BOOST_PROTO_DONT_USE_PREPROCESSED_FILES)
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#include <boost/proto/detail/preprocessed/generate_by_value.hpp>
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#elif !defined(BOOST_PP_IS_ITERATING)
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#if defined(__WAVE__) && defined(BOOST_PROTO_CREATE_PREPROCESSED_FILES)
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#pragma wave option(preserve: 2, line: 0, output: "preprocessed/generate_by_value.hpp")
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#endif
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///////////////////////////////////////////////////////////////////////////////
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/// \file generate_by_value.hpp
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/// Contains definition of by_value_generator_\<\> class template.
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//
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// Copyright 2008 Eric Niebler. Distributed under the Boost
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// Software License, Version 1.0. (See accompanying file
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// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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#if defined(__WAVE__) && defined(BOOST_PROTO_CREATE_PREPROCESSED_FILES)
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#pragma wave option(preserve: 1)
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#endif
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#define BOOST_PP_ITERATION_PARAMS_1 \
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(3, (1, BOOST_PROTO_MAX_ARITY, <boost/proto/detail/generate_by_value.hpp>))
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#include BOOST_PP_ITERATE()
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#if defined(__WAVE__) && defined(BOOST_PROTO_CREATE_PREPROCESSED_FILES)
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#pragma wave option(output: null)
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#endif
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#else // BOOST_PP_IS_ITERATING
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#define N BOOST_PP_ITERATION()
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template<typename Tag BOOST_PP_ENUM_TRAILING_PARAMS(N, typename Arg) >
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struct by_value_generator_<
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proto::expr<Tag, BOOST_PP_CAT(list, N)<BOOST_PP_ENUM_PARAMS(N, Arg)>, N>
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>
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{
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typedef
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BOOST_PP_CAT(list, N)<BOOST_PP_ENUM_PARAMS(N, Arg)>
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src_args;
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typedef
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BOOST_PP_CAT(list, N)<
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BOOST_PP_ENUM_BINARY_PARAMS(N, typename uncvref<Arg, >::type BOOST_PP_INTERCEPT)
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>
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dst_args;
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typedef proto::expr<Tag, src_args, N> src_type;
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typedef proto::expr<Tag, dst_args, N> type;
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BOOST_FORCEINLINE
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static type const call(src_type const &e)
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{
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type that = {
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BOOST_PP_ENUM_PARAMS(N, e.child)
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};
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return that;
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}
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};
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template<typename Tag BOOST_PP_ENUM_TRAILING_PARAMS(N, typename Arg) >
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struct by_value_generator_<
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proto::basic_expr<Tag, BOOST_PP_CAT(list, N)<BOOST_PP_ENUM_PARAMS(N, Arg)>, N>
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>
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{
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typedef
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BOOST_PP_CAT(list, N)<BOOST_PP_ENUM_PARAMS(N, Arg)>
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src_args;
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typedef
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BOOST_PP_CAT(list, N)<
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BOOST_PP_ENUM_BINARY_PARAMS(N, typename uncvref<Arg, >::type BOOST_PP_INTERCEPT)
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>
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dst_args;
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typedef proto::basic_expr<Tag, src_args, N> src_type;
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typedef proto::basic_expr<Tag, dst_args, N> type;
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BOOST_FORCEINLINE
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static type const call(src_type const &e)
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{
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type that = {
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BOOST_PP_ENUM_PARAMS(N, e.child)
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};
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return that;
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}
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};
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#undef N
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#endif
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