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79 lines
3.0 KiB
79 lines
3.0 KiB
#if !defined(BOOST_PROTO_DONT_USE_PREPROCESSED_FILES) |
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#include <boost/proto/detail/preprocessed/deep_copy.hpp> |
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#elif !defined(BOOST_PP_IS_ITERATING) |
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#define BOOST_PROTO_DEFINE_DEEP_COPY_TYPE(Z, N, DATA) \ |
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typename deep_copy_impl< \ |
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typename remove_reference< \ |
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typename Expr::BOOST_PP_CAT(proto_child, N) \ |
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>::type::proto_derived_expr \ |
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>::result_type \ |
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/**/ |
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#define BOOST_PROTO_DEFINE_DEEP_COPY_FUN(Z, N, DATA) \ |
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proto::deep_copy(e.proto_base().BOOST_PP_CAT(child, N)) \ |
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/**/ |
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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/deep_copy.hpp") |
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#endif |
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/////////////////////////////////////////////////////////////////////////////// |
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/// \file deep_copy.hpp |
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/// Replace all nodes stored by reference by nodes stored by value. |
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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/deep_copy.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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#undef BOOST_PROTO_DEFINE_DEEP_COPY_FUN |
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#undef BOOST_PROTO_DEFINE_DEEP_COPY_TYPE |
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#else |
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#define N BOOST_PP_ITERATION() |
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template<typename Expr> |
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struct deep_copy_impl<Expr, N> |
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{ |
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typedef |
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typename base_expr< |
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typename Expr::proto_domain |
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, typename Expr::proto_tag |
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, BOOST_PP_CAT(list, N)< |
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BOOST_PP_ENUM(N, BOOST_PROTO_DEFINE_DEEP_COPY_TYPE, ~) |
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> |
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>::type |
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expr_type; |
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typedef typename Expr::proto_generator proto_generator; |
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typedef typename proto_generator::template result<proto_generator(expr_type)>::type result_type; |
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template<typename Expr2, typename S, typename D> |
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result_type operator()(Expr2 const &e, S const &, D const &) const |
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{ |
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expr_type const that = { |
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BOOST_PP_ENUM(N, BOOST_PROTO_DEFINE_DEEP_COPY_FUN, ~) |
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}; |
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return proto_generator()(that); |
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} |
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}; |
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#undef N |
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#endif
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