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59 lines
1.9 KiB
59 lines
1.9 KiB
#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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