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//
// Boost.Pointer Container
//
// Copyright Thorsten Ottosen 2003-2005. 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)
//
// For more information, see http://www.boost.org/libs/ptr_container/
//
#ifndef BOOST_PTR_CONTAINER_CLONE_ALLOCATOR_HPP
#define BOOST_PTR_CONTAINER_CLONE_ALLOCATOR_HPP
#include <boost/checked_delete.hpp>
namespace boost
{
/////////////////////////////////////////////////////////////////////////
// Clonable concept
/////////////////////////////////////////////////////////////////////////
template< class T >
inline T* new_clone( const T& r )
{
return new T( r );
}
template< class T >
inline void delete_clone( const T* r )
{
checked_delete( r );
}
/////////////////////////////////////////////////////////////////////////
// CloneAllocator concept
/////////////////////////////////////////////////////////////////////////
struct heap_clone_allocator
{
template< class U >
static U* allocate_clone( const U& r )
{
return new_clone( r );
}
template< class U >
static void deallocate_clone( const U* r )
{
delete_clone( r );
}
};
struct view_clone_allocator
{
template< class U >
static U* allocate_clone( const U& r )
{
return const_cast<U*>( &r );
}
template< class U >
static void deallocate_clone( const U* r )
{
// do nothing
}
};
/////////////////////////////////////////////////////////////////////////
// MapCloneAllocator concept
/////////////////////////////////////////////////////////////////////////
template< class T >
inline T* new_default_clone( const T* )
{
return new T();
}
struct map_heap_clone_allocator : heap_clone_allocator
{
template< class U >
static U* allocate_default_clone()
{
static const U* ptr = 0;
return new_default_clone(ptr);
}
};
} // namespace 'boost'
#endif