// Copyright (C) 2003, Fernando Luis Cacciola Carballal. // Copyright (C) 2007, Tobias Schwinger. // // Use, modification, and distribution is subject to 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) // // See http://www.boost.org/libs/optional for documentation. // // You are welcome to contact the author at: // fernando_cacciola@hotmail.com // #ifndef BOOST_UTILITY_TYPED_INPLACE_FACTORY_04APR2007_HPP #ifndef BOOST_PP_IS_ITERATING #include namespace boost { class typed_in_place_factory_base {} ; #define BOOST_PP_ITERATION_LIMITS (0, BOOST_MAX_INPLACE_FACTORY_ARITY) #define BOOST_PP_FILENAME_1 #include BOOST_PP_ITERATE() } // namespace boost #include #define BOOST_UTILITY_TYPED_INPLACE_FACTORY_04APR2007_HPP #else #define N BOOST_PP_ITERATION() template< class T BOOST_PP_ENUM_TRAILING_PARAMS(N,class A) > class BOOST_PP_CAT(typed_in_place_factory,N) : public typed_in_place_factory_base { public: typedef T value_type; explicit BOOST_PP_CAT(typed_in_place_factory,N) ( BOOST_PP_ENUM_BINARY_PARAMS(N, A, const& a) ) #if N > 0 : BOOST_PP_ENUM(N, BOOST_DEFINE_INPLACE_FACTORY_CLASS_MEMBER_INIT, _) #endif {} void* apply (void* address) const { return new(address) T( BOOST_PP_ENUM_PARAMS(N, m_a) ); } void* apply (void* address, std::size_t n) const { for(void* next = address = this->apply(address); !! --n;) this->apply(next = static_cast(next) + sizeof(T)); return address; } BOOST_PP_REPEAT(N, BOOST_DEFINE_INPLACE_FACTORY_CLASS_MEMBER_DECL, _) }; template< class T BOOST_PP_ENUM_TRAILING_PARAMS(N, class A) > inline BOOST_PP_CAT(typed_in_place_factory,N)< T BOOST_PP_ENUM_TRAILING_PARAMS(N, A) > in_place( BOOST_PP_ENUM_BINARY_PARAMS(N, A, const& a) ) { return BOOST_PP_CAT(typed_in_place_factory,N)< T BOOST_PP_ENUM_TRAILING_PARAMS(N, A) >( BOOST_PP_ENUM_PARAMS(N, a) ); } #undef N #endif #endif