1 // Copyright (C) 2003, Fernando Luis Cacciola Carballal.

     2 //

     3 // Use, modification, and distribution is subject to the Boost Software

     4 // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at

     5 // http://www.boost.org/LICENSE_1_0.txt)

     6 //

     7 // See http://www.boost.org/lib/optional for documentation.

     8 //

     9 // You are welcome to contact the author at:

    10 //  fernando_cacciola@hotmail.com

    11 //

    12 #ifndef BOOST_UTILITY_TYPED_INPLACE_FACTORY_25AGO2003_HPP

    13 #define BOOST_UTILITY_TYPED_INPLACE_FACTORY_25AGO2003_HPP

    14 

    15 #include <boost/utility/detail/in_place_factory_prefix.hpp>

    16 

    17 namespace boost {

    18 

    19 class typed_in_place_factory_base {} ;

    20 

    21 #define BOOST_DEFINE_TYPED_INPLACE_FACTORY_CLASS(z,n,_) \

    22 template< class T, BOOST_PP_ENUM_PARAMS(BOOST_PP_INC(n),class A) > \

    23 class BOOST_PP_CAT(typed_in_place_factory, BOOST_PP_INC(n) ) : public typed_in_place_factory_base \

    24 { \

    25 public: \

    26 \

    27   typedef T value_type ; \

    28 \

    29   BOOST_PP_CAT(typed_in_place_factory, BOOST_PP_INC(n) ) ( BOOST_PP_ENUM_BINARY_PARAMS(BOOST_PP_INC(n),A,const& a) ) \

    30     : \

    31     BOOST_PP_ENUM( BOOST_PP_INC(n), BOOST_DEFINE_INPLACE_FACTORY_CLASS_MEMBER_INIT, _ ) \

    32   {} \

    33 \

    34   void apply ( void* address ) const \

    35   { \

    36     new ( address ) T ( BOOST_PP_ENUM_PARAMS( BOOST_PP_INC(n), m_a ) ) ; \

    37   } \

    38 \

    39   BOOST_PP_REPEAT( BOOST_PP_INC(n), BOOST_DEFINE_INPLACE_FACTORY_CLASS_MEMBER_DECL, _) \

    40 } ; \

    41 \

    42 template< class T, BOOST_PP_ENUM_PARAMS(BOOST_PP_INC(n),class A) > \

    43 BOOST_PP_CAT(typed_in_place_factory, BOOST_PP_INC(n) ) < T , BOOST_PP_ENUM_PARAMS( BOOST_PP_INC(n), A ) > \

    44 in_place ( BOOST_PP_ENUM_BINARY_PARAMS(BOOST_PP_INC(n),A, const& a) ) \

    45 { \

    46   return BOOST_PP_CAT(typed_in_place_factory, BOOST_PP_INC(n) ) < T, BOOST_PP_ENUM_PARAMS( BOOST_PP_INC(n), A ) > \

    47            ( BOOST_PP_ENUM_PARAMS( BOOST_PP_INC(n), a ) ) ; \

    48 } ; \

    49 

    50 BOOST_PP_REPEAT( BOOST_MAX_INPLACE_FACTORY_ARITY, BOOST_DEFINE_TYPED_INPLACE_FACTORY_CLASS, BOOST_PP_EMPTY() )

    51 

    52 } // namespace boost

    53 

    54 #include <boost/utility/detail/in_place_factory_suffix.hpp>

    55 

    56 #endif

    57