sp_counted_impl.h
#ifndef BOOSTER_SMART_PTR_DETAIL_SP_COUNTED_IMPL_HPP_INCLUDED
#define BOOSTER_SMART_PTR_DETAIL_SP_COUNTED_IMPL_HPP_INCLUDED
//
// detail/sp_counted_impl.hpp
//
// Copyright (c) 2001, 2002, 2003 Peter Dimov and Multi Media Ltd.
// Copyright 2004-2005 Peter Dimov
//
// Distributed under 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)
//
#include <booster/config.h>
#include <booster/checked_delete.h>
#include <booster/smart_ptr/sp_counted_base.h>
#if defined(BOOSTER_SP_USE_STD_ALLOCATOR)
#include <memory> // std::allocator
#endif
#include <cstddef> // std::size_t
namespace booster
{
namespace detail
{
template<class X> class sp_counted_impl_p: public sp_counted_base
{
private:
X * px_;
sp_counted_impl_p( sp_counted_impl_p const & );
sp_counted_impl_p & operator= ( sp_counted_impl_p const & );
typedef sp_counted_impl_p<X> this_type;
public:
explicit sp_counted_impl_p( X * px ): px_( px )
{
}
virtual void dispose() // nothrow
{
booster::checked_delete( px_ );
}
virtual void * get_deleter( detail::sp_typeinfo const & )
{
return 0;
}
void * operator new( std::size_t )
{
return std::allocator<this_type>().allocate( 1, static_cast<this_type *>(0) );
}
void operator delete( void * p )
{
std::allocator<this_type>().deallocate( static_cast<this_type *>(p), 1 );
}
};
//
// Borland's Codeguard trips up over the -Vx- option here:
//
#ifdef __CODEGUARD__
# pragma option push -Vx-
#endif
template<class P, class D> class sp_counted_impl_pd: public sp_counted_base
{
private:
P ptr; // copy constructor must not throw
D del; // copy constructor must not throw
sp_counted_impl_pd( sp_counted_impl_pd const & );
sp_counted_impl_pd & operator= ( sp_counted_impl_pd const & );
typedef sp_counted_impl_pd<P, D> this_type;
public:
// pre: d(p) must not throw
sp_counted_impl_pd( P p, D d ): ptr(p), del(d)
{
}
virtual void dispose() // nothrow
{
del( ptr );
}
virtual void * get_deleter( detail::sp_typeinfo const & ti )
{
return ti == BOOSTER_SP_TYPEID(D)? &reinterpret_cast<char&>( del ): 0;
}
void * operator new( std::size_t )
{
return std::allocator<this_type>().allocate( 1, static_cast<this_type *>(0) );
}
void operator delete( void * p )
{
std::allocator<this_type>().deallocate( static_cast<this_type *>(p), 1 );
}
};
template<class P, class D, class A> class sp_counted_impl_pda: public sp_counted_base
{
private:
P p_; // copy constructor must not throw
D d_; // copy constructor must not throw
A a_; // copy constructor must not throw
sp_counted_impl_pda( sp_counted_impl_pda const & );
sp_counted_impl_pda & operator= ( sp_counted_impl_pda const & );
typedef sp_counted_impl_pda<P, D, A> this_type;
public:
// pre: d( p ) must not throw
sp_counted_impl_pda( P p, D d, A a ): p_( p ), d_( d ), a_( a )
{
}
virtual void dispose() // nothrow
{
d_( p_ );
}
virtual void destroy() // nothrow
{
typedef typename A::template rebind< this_type >::other A2;
A2 a2( a_ );
this->~this_type();
a2.deallocate( this, 1 );
}
virtual void * get_deleter( detail::sp_typeinfo const & ti )
{
return ti == BOOSTER_SP_TYPEID( D )? &reinterpret_cast<char&>( d_ ): 0;
}
};
#ifdef __CODEGUARD__
# pragma option pop
#endif
} // namespace detail
} // namespace boost
#endif // #ifndef BOOST_SMART_PTR_DETAIL_SP_COUNTED_IMPL_HPP_INCLUDED
booster::detail::sp_counted_base
Definition: sp_counted_base.h:39
booster::detail::sp_counted_impl_pd
Definition: sp_counted_impl.h:77
booster::detail::sp_counted_impl_p
Definition: sp_counted_impl.h:32
booster::detail::sp_counted_impl_pda
Definition: sp_counted_impl.h:119