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Diffstat (limited to '3rdParty/Boost/src/boost/proto/detail/expr.hpp')
| -rw-r--r-- | 3rdParty/Boost/src/boost/proto/detail/expr.hpp | 474 |
1 files changed, 474 insertions, 0 deletions
diff --git a/3rdParty/Boost/src/boost/proto/detail/expr.hpp b/3rdParty/Boost/src/boost/proto/detail/expr.hpp new file mode 100644 index 0000000..3f3291b --- /dev/null +++ b/3rdParty/Boost/src/boost/proto/detail/expr.hpp @@ -0,0 +1,474 @@ +#if !defined(BOOST_PROTO_DONT_USE_PREPROCESSED_FILES) + + #ifndef BOOST_NO_VARIADIC_TEMPLATES + #include <boost/proto/detail/preprocessed/expr_variadic.hpp> + #else + #include <boost/proto/detail/preprocessed/expr.hpp> + #endif + +#elif !defined(BOOST_PP_IS_ITERATING) + + /// INTERNAL ONLY + /// + #define BOOST_PROTO_CHILD(Z, N, DATA) \ + typedef BOOST_PP_CAT(Arg, N) BOOST_PP_CAT(proto_child, N); \ + BOOST_PP_CAT(proto_child, N) BOOST_PP_CAT(child, N); \ + /**< INTERNAL ONLY */ + + /// INTERNAL ONLY + /// + #define BOOST_PROTO_VOID(Z, N, DATA) \ + typedef void BOOST_PP_CAT(proto_child, N); \ + /**< INTERNAL ONLY */ + + // Generate variadic versions of expr + #if defined(__WAVE__) && defined(BOOST_PROTO_CREATE_PREPROCESSED_FILES) + #pragma wave option(preserve: 2, line: 0, output: "preprocessed/expr_variadic.hpp") + #endif + + /////////////////////////////////////////////////////////////////////////////// + /// \file expr_variadic.hpp + /// Contains definition of expr\<\> 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 + + // The expr<> specializations are actually defined here. + #define BOOST_PROTO_DEFINE_TERMINAL + #define BOOST_PP_ITERATION_PARAMS_1 \ + (3, (0, 0, <boost/proto/detail/expr.hpp>)) + #include BOOST_PP_ITERATE() + + #undef BOOST_PROTO_DEFINE_TERMINAL + #define BOOST_PP_ITERATION_PARAMS_1 \ + (3, (1, BOOST_PROTO_MAX_ARITY, <boost/proto/detail/expr.hpp>)) + #include BOOST_PP_ITERATE() + + // Generate non-variadic versions of expr + #if defined(__WAVE__) && defined(BOOST_PROTO_CREATE_PREPROCESSED_FILES) + #define BOOST_NO_VARIADIC_TEMPLATES + #pragma wave option(preserve: 2, line: 0, output: "preprocessed/expr.hpp") + + /////////////////////////////////////////////////////////////////////////////// + /// \file expr.hpp + /// Contains definition of expr\<\> 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) + + #pragma wave option(preserve: 1) + + // The expr<> specializations are actually defined here. + #define BOOST_PROTO_DEFINE_TERMINAL + #define BOOST_PP_ITERATION_PARAMS_1 (3, (0, 0, <boost/proto/detail/expr.hpp>)) + #include BOOST_PP_ITERATE() + + #undef BOOST_PROTO_DEFINE_TERMINAL + #define BOOST_PP_ITERATION_PARAMS_1 (3, (1, BOOST_PROTO_MAX_ARITY, <boost/proto/detail/expr.hpp>)) + #include BOOST_PP_ITERATE() + + #pragma wave option(output: null) + #undef BOOST_NO_VARIADIC_TEMPLATES + #endif + + #undef BOOST_PROTO_CHILD + #undef BOOST_PROTO_VOID + +#else + + #define ARG_COUNT BOOST_PP_MAX(1, BOOST_PP_ITERATION()) + + /// \brief Representation of a node in an expression tree. + /// + /// \c proto::expr\<\> is a node in an expression template tree. It + /// is a container for its child sub-trees. It also serves as + /// the terminal nodes of the tree. + /// + /// \c Tag is type that represents the operation encoded by + /// this expression. It is typically one of the structs + /// in the \c boost::proto::tag namespace, but it doesn't + /// have to be. + /// + /// \c Args is a type list representing the type of the children + /// of this expression. It is an instantiation of one + /// of \c proto::list1\<\>, \c proto::list2\<\>, etc. The + /// child types must all themselves be either \c expr\<\> + /// or <tt>proto::expr\<\>&</tt>. If \c Args is an + /// instantiation of \c proto::term\<\> then this + /// \c expr\<\> type represents a terminal expression; + /// the parameter to the \c proto::term\<\> template + /// represents the terminal's value type. + /// + /// \c Arity is an integral constant representing the number of child + /// nodes this node contains. If \c Arity is 0, then this + /// node is a terminal. + /// + /// \c proto::expr\<\> is a valid Fusion random-access sequence, where + /// the elements of the sequence are the child expressions. + #ifdef BOOST_PROTO_DEFINE_TERMINAL + template<typename Tag, typename Arg0> + struct expr<Tag, term<Arg0>, 0> + #else + template<typename Tag BOOST_PP_ENUM_TRAILING_PARAMS(ARG_COUNT, typename Arg)> + struct expr<Tag, BOOST_PP_CAT(list, BOOST_PP_ITERATION())<BOOST_PP_ENUM_PARAMS(ARG_COUNT, Arg)>, BOOST_PP_ITERATION() > + #endif + { + typedef Tag proto_tag; + static const long proto_arity_c = BOOST_PP_ITERATION(); + typedef mpl::long_<BOOST_PP_ITERATION() > proto_arity; + typedef expr proto_base_expr; + #ifdef BOOST_PROTO_DEFINE_TERMINAL + typedef term<Arg0> proto_args; + #else + typedef BOOST_PP_CAT(list, BOOST_PP_ITERATION())<BOOST_PP_ENUM_PARAMS(ARG_COUNT, Arg)> proto_args; + #endif + typedef basic_expr<Tag, proto_args, BOOST_PP_ITERATION() > proto_grammar; + typedef default_domain proto_domain; + typedef default_generator proto_generator; + typedef proto::tag::proto_expr<Tag, proto_domain> fusion_tag; + typedef expr proto_derived_expr; + typedef void proto_is_expr_; /**< INTERNAL ONLY */ + + BOOST_PP_REPEAT(ARG_COUNT, BOOST_PROTO_CHILD, ~) + BOOST_PP_REPEAT_FROM_TO(ARG_COUNT, BOOST_PROTO_MAX_ARITY, BOOST_PROTO_VOID, ~) + + /// \return *this + /// + BOOST_FORCEINLINE + expr const &proto_base() const + { + return *this; + } + + /// \overload + /// + BOOST_FORCEINLINE + expr &proto_base() + { + return *this; + } + + #ifdef BOOST_PROTO_DEFINE_TERMINAL + /// \return A new \c expr\<\> object initialized with the specified + /// arguments. + /// + template<typename A0> + BOOST_FORCEINLINE + static expr const make(A0 &a0) + { + return detail::make_terminal(a0, static_cast<expr *>(0), static_cast<proto_args *>(0)); + } + + /// \overload + /// + template<typename A0> + BOOST_FORCEINLINE + static expr const make(A0 const &a0) + { + return detail::make_terminal(a0, static_cast<expr *>(0), static_cast<proto_args *>(0)); + } + #else + /// \return A new \c expr\<\> object initialized with the specified + /// arguments. + /// + template<BOOST_PP_ENUM_PARAMS(ARG_COUNT, typename A)> + BOOST_FORCEINLINE + static expr const make(BOOST_PP_ENUM_BINARY_PARAMS(ARG_COUNT, A, const &a)) + { + expr that = {BOOST_PP_ENUM_PARAMS(ARG_COUNT, a)}; + return that; + } + #endif + + #if 1 == BOOST_PP_ITERATION() + /// If \c Tag is \c boost::proto::tag::address_of and \c proto_child0 is + /// <tt>T&</tt>, then \c address_of_hack_type_ is <tt>T*</tt>. + /// Otherwise, it is some undefined type. + typedef typename detail::address_of_hack<Tag, proto_child0>::type address_of_hack_type_; + + /// \return The address of <tt>this->child0</tt> if \c Tag is + /// \c boost::proto::tag::address_of. Otherwise, this function will + /// fail to compile. + /// + /// \attention Proto overloads <tt>operator&</tt>, which means that + /// proto-ified objects cannot have their addresses taken, unless we use + /// the following hack to make \c &x implicitly convertible to \c X*. + BOOST_FORCEINLINE + operator address_of_hack_type_() const + { + return boost::addressof(this->child0); + } + #else + /// INTERNAL ONLY + /// + typedef detail::not_a_valid_type address_of_hack_type_; + #endif + + /// Assignment + /// + /// \param a The rhs. + /// \return A new \c expr\<\> node representing an assignment of \c that to \c *this. + BOOST_FORCEINLINE + proto::expr< + proto::tag::assign + , list2<expr &, expr const &> + , 2 + > const + operator =(expr const &a) + { + proto::expr< + proto::tag::assign + , list2<expr &, expr const &> + , 2 + > that = {*this, a}; + return that; + } + + /// Assignment + /// + /// \param a The rhs. + /// \return A new \c expr\<\> node representing an assignment of \c a to \c *this. + template<typename A> + BOOST_FORCEINLINE + proto::expr< + proto::tag::assign + , list2<expr const &, typename result_of::as_child<A>::type> + , 2 + > const + operator =(A &a) const + { + proto::expr< + proto::tag::assign + , list2<expr const &, typename result_of::as_child<A>::type> + , 2 + > that = {*this, proto::as_child(a)}; + return that; + } + + /// \overload + /// + template<typename A> + BOOST_FORCEINLINE + proto::expr< + proto::tag::assign + , list2<expr const &, typename result_of::as_child<A const>::type> + , 2 + > const + operator =(A const &a) const + { + proto::expr< + proto::tag::assign + , list2<expr const &, typename result_of::as_child<A const>::type> + , 2 + > that = {*this, proto::as_child(a)}; + return that; + } + + #ifdef BOOST_PROTO_DEFINE_TERMINAL + /// \overload + /// + template<typename A> + BOOST_FORCEINLINE + proto::expr< + proto::tag::assign + , list2<expr &, typename result_of::as_child<A>::type> + , 2 + > const + operator =(A &a) + { + proto::expr< + proto::tag::assign + , list2<expr &, typename result_of::as_child<A>::type> + , 2 + > that = {*this, proto::as_child(a)}; + return that; + } + + /// \overload + /// + template<typename A> + BOOST_FORCEINLINE + proto::expr< + proto::tag::assign + , list2<expr &, typename result_of::as_child<A const>::type> + , 2 + > const + operator =(A const &a) + { + proto::expr< + proto::tag::assign + , list2<expr &, typename result_of::as_child<A const>::type> + , 2 + > that = {*this, proto::as_child(a)}; + return that; + } + #endif + + /// Subscript + /// + /// \param a The rhs. + /// \return A new \c expr\<\> node representing \c *this subscripted with \c a. + template<typename A> + BOOST_FORCEINLINE + proto::expr< + proto::tag::subscript + , list2<expr const &, typename result_of::as_child<A>::type> + , 2 + > const + operator [](A &a) const + { + proto::expr< + proto::tag::subscript + , list2<expr const &, typename result_of::as_child<A>::type> + , 2 + > that = {*this, proto::as_child(a)}; + return that; + } + + /// \overload + /// + template<typename A> + BOOST_FORCEINLINE + proto::expr< + proto::tag::subscript + , list2<expr const &, typename result_of::as_child<A const>::type> + , 2 + > const + operator [](A const &a) const + { + proto::expr< + proto::tag::subscript + , list2<expr const &, typename result_of::as_child<A const>::type> + , 2 + > that = {*this, proto::as_child(a)}; + return that; + } + + #ifdef BOOST_PROTO_DEFINE_TERMINAL + /// \overload + /// + template<typename A> + BOOST_FORCEINLINE + proto::expr< + proto::tag::subscript + , list2<expr &, typename result_of::as_child<A>::type> + , 2 + > const + operator [](A &a) + { + proto::expr< + proto::tag::subscript + , list2<expr &, typename result_of::as_child<A>::type> + , 2 + > that = {*this, proto::as_child(a)}; + return that; + } + + /// \overload + /// + template<typename A> + BOOST_FORCEINLINE + proto::expr< + proto::tag::subscript + , list2<expr &, typename result_of::as_child<A const>::type> + , 2 + > const + operator [](A const &a) + { + proto::expr< + proto::tag::subscript + , list2<expr &, typename result_of::as_child<A const>::type> + , 2 + > that = {*this, proto::as_child(a)}; + return that; + } + #endif + + /// Encodes the return type of \c expr\<\>::operator(), for use with \c boost::result_of\<\> + /// + template<typename Sig> + struct result + { + typedef typename result_of::funop<Sig, expr, default_domain>::type const type; + }; + + #ifndef BOOST_NO_VARIADIC_TEMPLATES + /// \overload + /// + template<typename ...A> + BOOST_FORCEINLINE + typename result_of::funop< + expr const(A const &...) + , expr + , default_domain + >::type const + operator ()(A const &... a) const + { + return result_of::funop< + expr const(A const &...) + , expr + , default_domain + >::call(*this, a...); + } + + #ifdef BOOST_PROTO_DEFINE_TERMINAL + /// \overload + /// + template<typename ...A> + BOOST_FORCEINLINE + typename result_of::funop< + expr(A const &...) + , expr + , default_domain + >::type const + operator ()(A const &... a) + { + return result_of::funop< + expr(A const &...) + , expr + , default_domain + >::call(*this, a...); + } + #endif + + #else // BOOST_NO_VARIADIC_TEMPLATES + + /// Function call + /// + /// \return A new \c expr\<\> node representing the function invocation of \c (*this)(). + BOOST_FORCEINLINE + proto::expr<proto::tag::function, list1<expr const &>, 1> const + operator ()() const + { + proto::expr<proto::tag::function, list1<expr const &>, 1> that = {*this}; + return that; + } + + #ifdef BOOST_PROTO_DEFINE_TERMINAL + /// \overload + /// + BOOST_FORCEINLINE + proto::expr<proto::tag::function, list1<expr &>, 1> const + operator ()() + { + proto::expr<proto::tag::function, list1<expr &>, 1> that = {*this}; + return that; + } + #endif + + #define BOOST_PP_ITERATION_PARAMS_2 \ + (3, (1, BOOST_PP_DEC(BOOST_PROTO_MAX_FUNCTION_CALL_ARITY), <boost/proto/detail/expr_funop.hpp>)) + #include BOOST_PP_ITERATE() + +#endif + }; + +#undef ARG_COUNT + +#endif |