| 1 | // Copyright (C) 2003, Fernando Luis Cacciola Carballal. |
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| 2 | // Copyright (C) 2007, Tobias Schwinger. |
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| 3 | // |
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| 4 | // Use, modification, and distribution is subject to the Boost Software |
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| 5 | // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at |
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| 6 | // http://www.boost.org/LICENSE_1_0.txt) |
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| 7 | // |
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| 8 | // See http://www.boost.org/libs/optional for documentation. |
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| 9 | // |
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| 10 | // You are welcome to contact the author at: |
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| 11 | // fernando_cacciola@hotmail.com |
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| 12 | // |
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| 13 | #ifndef BOOST_UTILITY_TYPED_INPLACE_FACTORY_04APR2007_HPP |
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| 14 | #ifndef BOOST_PP_IS_ITERATING |
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| 15 | |
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| 16 | #include <boost/utility/detail/in_place_factory_prefix.hpp> |
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| 17 | |
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| 18 | namespace boost { |
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| 19 | |
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| 20 | class typed_in_place_factory_base {} ; |
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| 21 | |
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| 22 | #define BOOST_PP_ITERATION_LIMITS (0, BOOST_MAX_INPLACE_FACTORY_ARITY) |
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| 23 | #define BOOST_PP_FILENAME_1 <boost/utility/typed_in_place_factory.hpp> |
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| 24 | #include BOOST_PP_ITERATE() |
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| 25 | |
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| 26 | } // namespace boost |
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| 27 | |
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| 28 | #include <boost/utility/detail/in_place_factory_suffix.hpp> |
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| 29 | |
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| 30 | #define BOOST_UTILITY_TYPED_INPLACE_FACTORY_04APR2007_HPP |
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| 31 | #else |
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| 32 | #define N BOOST_PP_ITERATION() |
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| 33 | |
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| 34 | template< class T BOOST_PP_ENUM_TRAILING_PARAMS(N,class A) > |
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| 35 | class BOOST_PP_CAT(typed_in_place_factory,N) |
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| 36 | : |
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| 37 | public typed_in_place_factory_base |
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| 38 | { |
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| 39 | public: |
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| 40 | |
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| 41 | typedef T value_type; |
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| 42 | |
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| 43 | explicit BOOST_PP_CAT(typed_in_place_factory,N) |
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| 44 | ( BOOST_PP_ENUM_BINARY_PARAMS(N, A, const& a) ) |
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| 45 | #if N > 0 |
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| 46 | : BOOST_PP_ENUM(N, BOOST_DEFINE_INPLACE_FACTORY_CLASS_MEMBER_INIT, _) |
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| 47 | #endif |
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| 48 | {} |
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| 49 | |
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| 50 | void* apply (void* address) const |
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| 51 | { |
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| 52 | return new(address) T( BOOST_PP_ENUM_PARAMS(N, m_a) ); |
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| 53 | } |
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| 54 | |
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| 55 | void* apply (void* address, std::size_t n) const |
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| 56 | { |
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| 57 | for(void* next = address = this->apply(address); !! --n;) |
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| 58 | this->apply(next = static_cast<char *>(next) + sizeof(T)); |
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| 59 | return address; |
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| 60 | } |
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| 61 | |
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| 62 | BOOST_PP_REPEAT(N, BOOST_DEFINE_INPLACE_FACTORY_CLASS_MEMBER_DECL, _) |
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| 63 | }; |
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| 64 | |
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| 65 | template< class T BOOST_PP_ENUM_TRAILING_PARAMS(N, class A) > |
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| 66 | inline BOOST_PP_CAT(typed_in_place_factory,N)< |
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| 67 | T BOOST_PP_ENUM_TRAILING_PARAMS(N, A) > |
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| 68 | in_place( BOOST_PP_ENUM_BINARY_PARAMS(N, A, const& a) ) |
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| 69 | { |
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| 70 | return BOOST_PP_CAT(typed_in_place_factory,N)< |
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| 71 | T BOOST_PP_ENUM_TRAILING_PARAMS(N, A) >( BOOST_PP_ENUM_PARAMS(N, a) ); |
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| 72 | } |
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| 73 | |
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| 74 | #undef N |
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| 75 | #endif |
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| 76 | #endif |
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| 77 | |
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| 78 | |
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