// 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/lib/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