[857] | 1 | // Copyright (C) 2003, Fernando Luis Cacciola Carballal.
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| 2 | //
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| 3 | // Use, modification, and distribution is subject to the Boost Software
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| 4 | // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
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| 5 | // http://www.boost.org/LICENSE_1_0.txt)
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| 6 | //
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| 7 | // See http://www.boost.org/lib/optional for documentation.
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| 8 | //
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| 9 | // You are welcome to contact the author at:
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| 10 | // fernando_cacciola@hotmail.com
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| 11 | //
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| 12 | #ifndef BOOST_UTILITY_INPLACE_FACTORY_25AGO2003_HPP
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| 13 | #define BOOST_UTILITY_INPLACE_FACTORY_25AGO2003_HPP
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| 14 |
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| 15 | #include <boost/utility/detail/in_place_factory_prefix.hpp>
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| 16 |
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| 17 | #include <boost/type.hpp>
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| 18 |
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| 19 | namespace boost {
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| 20 |
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| 21 | class in_place_factory_base {} ;
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| 22 |
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| 23 | #define BOOST_DEFINE_INPLACE_FACTORY_CLASS(z,n,_) \
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| 24 | template< BOOST_PP_ENUM_PARAMS(BOOST_PP_INC(n),class A) > \
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| 25 | class BOOST_PP_CAT(in_place_factory, BOOST_PP_INC(n) ) : public in_place_factory_base \
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| 26 | { \
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| 27 | public: \
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| 28 | \
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| 29 | BOOST_PP_CAT(in_place_factory, BOOST_PP_INC(n) ) ( BOOST_PP_ENUM_BINARY_PARAMS(BOOST_PP_INC(n),A,const& a) ) \
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| 30 | : \
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| 31 | BOOST_PP_ENUM( BOOST_PP_INC(n), BOOST_DEFINE_INPLACE_FACTORY_CLASS_MEMBER_INIT, _ ) \
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| 32 | {} \
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| 33 | \
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| 34 | template<class T> \
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| 35 | void apply ( void* address BOOST_APPEND_EXPLICIT_TEMPLATE_TYPE(T) ) const \
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| 36 | { \
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| 37 | new ( address ) T ( BOOST_PP_ENUM_PARAMS( BOOST_PP_INC(n), m_a ) ) ; \
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| 38 | } \
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| 39 | \
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| 40 | BOOST_PP_REPEAT( BOOST_PP_INC(n), BOOST_DEFINE_INPLACE_FACTORY_CLASS_MEMBER_DECL, _) \
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| 41 | } ; \
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| 42 | \
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| 43 | template< BOOST_PP_ENUM_PARAMS(BOOST_PP_INC(n),class A) > \
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| 44 | BOOST_PP_CAT(in_place_factory, BOOST_PP_INC(n) ) < BOOST_PP_ENUM_PARAMS( BOOST_PP_INC(n), A ) > \
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| 45 | in_place ( BOOST_PP_ENUM_BINARY_PARAMS(BOOST_PP_INC(n),A, const& a) ) \
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| 46 | { \
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| 47 | return BOOST_PP_CAT(in_place_factory, BOOST_PP_INC(n) ) < BOOST_PP_ENUM_PARAMS( BOOST_PP_INC(n), A ) > \
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| 48 | ( BOOST_PP_ENUM_PARAMS( BOOST_PP_INC(n), a ) ) ; \
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| 49 | } ; \
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| 50 |
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| 51 | BOOST_PP_REPEAT( BOOST_MAX_INPLACE_FACTORY_ARITY, BOOST_DEFINE_INPLACE_FACTORY_CLASS, BOOST_PP_EMPTY() )
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| 52 |
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| 53 | } // namespace boost
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| 54 |
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| 55 | #include <boost/utility/detail/in_place_factory_suffix.hpp>
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| 56 |
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| 57 | #endif
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| 58 |
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