// 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_INPLACE_FACTORY_04APR2007_HPP | |
#ifndef BOOST_PP_IS_ITERATING | |
#include <boost/utility/detail/in_place_factory_prefix.hpp> | |
namespace boost { | |
class in_place_factory_base {} ; | |
#define BOOST_PP_ITERATION_LIMITS (0, BOOST_MAX_INPLACE_FACTORY_ARITY) | |
#define BOOST_PP_FILENAME_1 <boost/utility/in_place_factory.hpp> | |
#include BOOST_PP_ITERATE() | |
} // namespace boost | |
#include <boost/utility/detail/in_place_factory_suffix.hpp> | |
#define BOOST_UTILITY_INPLACE_FACTORY_04APR2007_HPP | |
#else | |
#define N BOOST_PP_ITERATION() | |
#if N | |
template< BOOST_PP_ENUM_PARAMS(N, class A) > | |
#endif | |
class BOOST_PP_CAT(in_place_factory,N) | |
: | |
public in_place_factory_base | |
{ | |
public: | |
explicit BOOST_PP_CAT(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 | |
{} | |
template<class T> | |
void* apply(void* address | |
BOOST_APPEND_EXPLICIT_TEMPLATE_TYPE(T)) const | |
{ | |
return new(address) T( BOOST_PP_ENUM_PARAMS(N, m_a) ); | |
} | |
template<class T> | |
void* apply(void* address, std::size_t n | |
BOOST_APPEND_EXPLICIT_TEMPLATE_TYPE(T)) const | |
{ | |
for(char* next = address = this->BOOST_NESTED_TEMPLATE apply<T>(address); | |
!! --n;) | |
this->BOOST_NESTED_TEMPLATE apply<T>(next = next+sizeof(T)); | |
return address; | |
} | |
BOOST_PP_REPEAT(N, BOOST_DEFINE_INPLACE_FACTORY_CLASS_MEMBER_DECL, _) | |
}; | |
#if N > 0 | |
template< BOOST_PP_ENUM_PARAMS(N, class A) > | |
inline BOOST_PP_CAT(in_place_factory,N)< BOOST_PP_ENUM_PARAMS(N, A) > | |
in_place( BOOST_PP_ENUM_BINARY_PARAMS(N, A, const& a) ) | |
{ | |
return BOOST_PP_CAT(in_place_factory,N)< BOOST_PP_ENUM_PARAMS(N, A) > | |
( BOOST_PP_ENUM_PARAMS(N, a) ); | |
} | |
#else | |
inline in_place_factory0 in_place() | |
{ | |
return in_place_factory0(); | |
} | |
#endif | |
#undef N | |
#endif | |
#endif | |