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- #if !defined(BOOST_PROTO_DONT_USE_PREPROCESSED_FILES)
- #include <boost/proto/context/detail/preprocessed/default_eval.hpp>
- #elif !defined(BOOST_PP_IS_ITERATING)
- #define BOOST_PROTO_DEFAULT_EVAL_SHIFTED(Z, M, DATA) \
- BOOST_PROTO_DEFAULT_EVAL(Z, BOOST_PP_ADD(M, 2), DATA) \
- /**/
- #if defined(__WAVE__) && defined(BOOST_PROTO_CREATE_PREPROCESSED_FILES)
- #pragma wave option(preserve: 2, line: 0, output: "preprocessed/default_eval.hpp")
- #endif
- ///////////////////////////////////////////////////////////////////////////////
- /// \file default_eval.hpp
- /// Contains specializations of the default_eval\<\> class template.
- //
- // Copyright 2008 Eric Niebler. Distributed under the Boost
- // Software License, Version 1.0. (See accompanying file
- // LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
- #if defined(__WAVE__) && defined(BOOST_PROTO_CREATE_PREPROCESSED_FILES)
- #pragma wave option(preserve: 1)
- #endif
- #define BOOST_PP_ITERATION_PARAMS_1 \
- (3, (3, BOOST_PROTO_MAX_ARITY, <boost/proto/context/detail/default_eval.hpp>))
- #include BOOST_PP_ITERATE()
- #if defined(__WAVE__) && defined(BOOST_PROTO_CREATE_PREPROCESSED_FILES)
- #pragma wave option(output: null)
- #endif
- #undef BOOST_PROTO_DEFAULT_EVAL_SHIFTED
- #else
- #define N BOOST_PP_ITERATION()
- template<typename Expr, typename Context>
- struct default_eval<Expr, Context, proto::tag::function, N>
- {
- typedef
- typename proto::detail::result_of_fixup<
- BOOST_PROTO_DEFAULT_EVAL_TYPE(~, 0, Expr)
- >::type
- function_type;
- typedef
- typename BOOST_PROTO_RESULT_OF<
- function_type(BOOST_PP_ENUM_SHIFTED(N, BOOST_PROTO_DEFAULT_EVAL_TYPE, Expr))
- >::type
- result_type;
- result_type operator ()(Expr &expr, Context &context) const
- {
- return this->invoke(expr, context, is_member_function_pointer<function_type>());
- }
- private:
- result_type invoke(Expr &expr, Context &context, mpl::false_) const
- {
- return BOOST_PROTO_DEFAULT_EVAL(~, 0, expr)(
- BOOST_PP_ENUM_SHIFTED(N, BOOST_PROTO_DEFAULT_EVAL, expr)
- );
- }
- result_type invoke(Expr &expr, Context &context, mpl::true_) const
- {
- BOOST_PROTO_USE_GET_POINTER();
- typedef typename detail::class_member_traits<function_type>::class_type class_type;
- return (
- BOOST_PROTO_GET_POINTER(class_type, (BOOST_PROTO_DEFAULT_EVAL(~, 1, expr))) ->*
- BOOST_PROTO_DEFAULT_EVAL(~, 0, expr)
- )(BOOST_PP_ENUM(BOOST_PP_SUB(N, 2), BOOST_PROTO_DEFAULT_EVAL_SHIFTED, expr));
- }
- };
- #undef N
- #endif
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