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Viewing changes to contrib/boost/include/boost/utility/in_place_factory.hpp

  • Committer: Bazaar Package Importer
  • Author(s): Adam C. Powell, IV
  • Date: 2009-05-08 23:13:50 UTC
  • Revision ID: james.westby@ubuntu.com-20090508231350-rrh1ltgi0tifabwc
Tags: upstream-6.2.0
Import upstream version 6.2.0

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contrib/boost/include/boost/utility/in_place_factory.hpp
 
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// Copyright (C) 2003, Fernando Luis Cacciola Carballal.
 
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// Copyright (C) 2007, Tobias Schwinger.
 
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//
 
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// Use, modification, and distribution is subject to the Boost Software
 
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// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
 
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// http://www.boost.org/LICENSE_1_0.txt)
 
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//
 
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// See http://www.boost.org/lib/optional for documentation.
 
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//
 
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// You are welcome to contact the author at:
 
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//  fernando_cacciola@hotmail.com
 
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//
 
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#ifndef BOOST_UTILITY_INPLACE_FACTORY_04APR2007_HPP
 
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#ifndef BOOST_PP_IS_ITERATING
 
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#include <boost/utility/detail/in_place_factory_prefix.hpp>
 
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namespace boost {
 
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class in_place_factory_base {} ;
 
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#define  BOOST_PP_ITERATION_LIMITS (0, BOOST_MAX_INPLACE_FACTORY_ARITY)
 
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#define  BOOST_PP_FILENAME_1 <boost/utility/in_place_factory.hpp>
 
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#include BOOST_PP_ITERATE()
 
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} // namespace boost
 
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#include <boost/utility/detail/in_place_factory_suffix.hpp>
 
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#define BOOST_UTILITY_INPLACE_FACTORY_04APR2007_HPP
 
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#else
 
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#define N BOOST_PP_ITERATION()
 
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#if N
 
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template< BOOST_PP_ENUM_PARAMS(N, class A) >
 
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#endif
 
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class BOOST_PP_CAT(in_place_factory,N)
 
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  : 
 
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  public in_place_factory_base
 
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{
 
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public:
 
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  explicit BOOST_PP_CAT(in_place_factory,N)
 
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      ( BOOST_PP_ENUM_BINARY_PARAMS(N,A,const& a) )
 
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#if N > 0
 
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    : BOOST_PP_ENUM(N, BOOST_DEFINE_INPLACE_FACTORY_CLASS_MEMBER_INIT, _)
 
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#endif
 
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  {}
 
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  template<class T>
 
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  void* apply(void* address
 
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      BOOST_APPEND_EXPLICIT_TEMPLATE_TYPE(T)) const
 
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  {
 
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    return new(address) T( BOOST_PP_ENUM_PARAMS(N, m_a) );
 
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  }
 
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  template<class T>
 
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  void* apply(void* address, std::size_t n
 
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      BOOST_APPEND_EXPLICIT_TEMPLATE_TYPE(T)) const
 
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  {
 
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    for(char* next = address = this->BOOST_NESTED_TEMPLATE apply<T>(address);
 
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        !! --n;)
 
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      this->BOOST_NESTED_TEMPLATE apply<T>(next = next+sizeof(T));
 
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    return address; 
 
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  }
 
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  BOOST_PP_REPEAT(N, BOOST_DEFINE_INPLACE_FACTORY_CLASS_MEMBER_DECL, _)
 
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};
 
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#if N > 0
 
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template< BOOST_PP_ENUM_PARAMS(N, class A) >
 
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inline BOOST_PP_CAT(in_place_factory,N)< BOOST_PP_ENUM_PARAMS(N, A) >
 
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in_place( BOOST_PP_ENUM_BINARY_PARAMS(N, A, const& a) )
 
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{
 
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  return BOOST_PP_CAT(in_place_factory,N)< BOOST_PP_ENUM_PARAMS(N, A) >
 
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      ( BOOST_PP_ENUM_PARAMS(N, a) );
 
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}
 
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#else
 
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inline in_place_factory0 in_place()
 
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{
 
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  return in_place_factory0();
 
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}
 
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#endif
 
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#undef N
 
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#endif
 
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#endif
 
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