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60 lines
1.9 KiB
60 lines
1.9 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/or_n.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/or_n.hpp")
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#endif
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///////////////////////////////////////////////////////////////////////////////
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/// \file or_n.hpp
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/// Definitions of or_N
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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, (2, BOOST_PROTO_MAX_LOGICAL_ARITY, <boost/proto/detail/or_n.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<bool B, typename Expr, typename BasicExpr, BOOST_PP_ENUM_PARAMS(N, typename G)>
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struct BOOST_PP_CAT(or_, N)
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#if 2 == N
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: mpl::bool_<matches_<Expr, BasicExpr, typename G1::proto_grammar>::value>
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{
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typedef G1 which;
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};
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#else
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: BOOST_PP_CAT(or_, BOOST_PP_DEC(N))<
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matches_<Expr, BasicExpr, typename G1::proto_grammar>::value
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, Expr, BasicExpr, BOOST_PP_ENUM_SHIFTED_PARAMS(N, G)
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>
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{};
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#endif
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template<typename Expr, typename BasicExpr BOOST_PP_ENUM_TRAILING_PARAMS(N, typename G)>
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struct BOOST_PP_CAT(or_, N)<true, Expr, BasicExpr, BOOST_PP_ENUM_PARAMS(N, G)>
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: mpl::true_
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{
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typedef G0 which;
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};
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#undef N
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#endif
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