#ifndef BOOST_SMART_PTR_DETAIL_SP_COUNTED_IMPL_HPP_INCLUDED
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#define BOOST_SMART_PTR_DETAIL_SP_COUNTED_IMPL_HPP_INCLUDED
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// MS compatible compilers support #pragma once
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#if defined(_MSC_VER) && (_MSC_VER >= 1020)
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# pragma once
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#endif
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//
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// detail/sp_counted_impl.hpp
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//
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// Copyright (c) 2001, 2002, 2003 Peter Dimov and Multi Media Ltd.
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// Copyright 2004-2005 Peter Dimov
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//
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// Distributed under the Boost Software License, Version 1.0. (See
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// 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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#if defined(BOOST_SP_USE_STD_ALLOCATOR) && defined(BOOST_SP_USE_QUICK_ALLOCATOR)
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# error BOOST_SP_USE_STD_ALLOCATOR and BOOST_SP_USE_QUICK_ALLOCATOR are incompatible.
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#endif
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#include <boost/smart_ptr/detail/sp_counted_base.hpp>
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#include <boost/smart_ptr/detail/sp_noexcept.hpp>
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#include <boost/checked_delete.hpp>
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#include <boost/core/addressof.hpp>
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#include <boost/config.hpp>
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#if defined(BOOST_SP_USE_QUICK_ALLOCATOR)
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#include <boost/smart_ptr/detail/quick_allocator.hpp>
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#endif
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#include <memory> // std::allocator, std::allocator_traits
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#include <cstddef> // std::size_t
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namespace boost
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{
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#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
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void sp_scalar_constructor_hook( void * px, std::size_t size, void * pn );
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void sp_scalar_destructor_hook( void * px, std::size_t size, void * pn );
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#endif
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namespace detail
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{
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// get_local_deleter
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template<class D> class local_sp_deleter;
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template<class D> D * get_local_deleter( D * /*p*/ ) BOOST_SP_NOEXCEPT
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{
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return 0;
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}
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template<class D> D * get_local_deleter( local_sp_deleter<D> * p ) BOOST_SP_NOEXCEPT;
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//
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template<class X> class BOOST_SYMBOL_VISIBLE sp_counted_impl_p: public sp_counted_base
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{
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private:
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X * px_;
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sp_counted_impl_p( sp_counted_impl_p const & );
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sp_counted_impl_p & operator= ( sp_counted_impl_p const & );
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typedef sp_counted_impl_p<X> this_type;
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public:
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explicit sp_counted_impl_p( X * px ): px_( px )
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{
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#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
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boost::sp_scalar_constructor_hook( px, sizeof(X), this );
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#endif
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}
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void dispose() BOOST_SP_NOEXCEPT BOOST_OVERRIDE
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{
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#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
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boost::sp_scalar_destructor_hook( px_, sizeof(X), this );
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#endif
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boost::checked_delete( px_ );
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}
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void * get_deleter( sp_typeinfo_ const & ) BOOST_SP_NOEXCEPT BOOST_OVERRIDE
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{
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return 0;
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}
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void * get_local_deleter( sp_typeinfo_ const & ) BOOST_SP_NOEXCEPT BOOST_OVERRIDE
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{
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return 0;
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}
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void * get_untyped_deleter() BOOST_SP_NOEXCEPT BOOST_OVERRIDE
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{
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return 0;
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}
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#if defined(BOOST_SP_USE_STD_ALLOCATOR)
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void * operator new( std::size_t )
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{
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return std::allocator<this_type>().allocate( 1, static_cast<this_type *>(0) );
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}
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void operator delete( void * p )
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{
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std::allocator<this_type>().deallocate( static_cast<this_type *>(p), 1 );
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}
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#endif
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#if defined(BOOST_SP_USE_QUICK_ALLOCATOR)
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void * operator new( std::size_t )
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{
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return quick_allocator<this_type>::alloc();
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}
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void operator delete( void * p )
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{
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quick_allocator<this_type>::dealloc( p );
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}
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#endif
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};
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//
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// Borland's Codeguard trips up over the -Vx- option here:
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//
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#ifdef __CODEGUARD__
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# pragma option push -Vx-
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#endif
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template<class P, class D> class BOOST_SYMBOL_VISIBLE sp_counted_impl_pd: public sp_counted_base
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{
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private:
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P ptr; // copy constructor must not throw
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D del; // copy constructor must not throw
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sp_counted_impl_pd( sp_counted_impl_pd const & );
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sp_counted_impl_pd & operator= ( sp_counted_impl_pd const & );
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typedef sp_counted_impl_pd<P, D> this_type;
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public:
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// pre: d(p) must not throw
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sp_counted_impl_pd( P p, D & d ): ptr( p ), del( d )
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{
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}
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sp_counted_impl_pd( P p ): ptr( p ), del()
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{
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}
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void dispose() BOOST_SP_NOEXCEPT BOOST_OVERRIDE
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{
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del( ptr );
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}
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void * get_deleter( sp_typeinfo_ const & ti ) BOOST_SP_NOEXCEPT BOOST_OVERRIDE
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{
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return ti == BOOST_SP_TYPEID_(D)? &reinterpret_cast<char&>( del ): 0;
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}
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void * get_local_deleter( sp_typeinfo_ const & ti ) BOOST_SP_NOEXCEPT BOOST_OVERRIDE
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{
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return ti == BOOST_SP_TYPEID_(D)? boost::detail::get_local_deleter( boost::addressof( del ) ): 0;
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}
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void * get_untyped_deleter() BOOST_SP_NOEXCEPT BOOST_OVERRIDE
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{
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return &reinterpret_cast<char&>( del );
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}
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#if defined(BOOST_SP_USE_STD_ALLOCATOR)
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void * operator new( std::size_t )
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{
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return std::allocator<this_type>().allocate( 1, static_cast<this_type *>(0) );
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}
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void operator delete( void * p )
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{
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std::allocator<this_type>().deallocate( static_cast<this_type *>(p), 1 );
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}
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#endif
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#if defined(BOOST_SP_USE_QUICK_ALLOCATOR)
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void * operator new( std::size_t )
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{
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return quick_allocator<this_type>::alloc();
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}
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void operator delete( void * p )
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{
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quick_allocator<this_type>::dealloc( p );
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}
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#endif
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};
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template<class P, class D, class A> class BOOST_SYMBOL_VISIBLE sp_counted_impl_pda: public sp_counted_base
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{
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private:
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P p_; // copy constructor must not throw
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D d_; // copy constructor must not throw
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A a_; // copy constructor must not throw
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sp_counted_impl_pda( sp_counted_impl_pda const & );
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sp_counted_impl_pda & operator= ( sp_counted_impl_pda const & );
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typedef sp_counted_impl_pda<P, D, A> this_type;
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public:
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// pre: d( p ) must not throw
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sp_counted_impl_pda( P p, D & d, A a ): p_( p ), d_( d ), a_( a )
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{
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}
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sp_counted_impl_pda( P p, A a ): p_( p ), d_( a ), a_( a )
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{
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}
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void dispose() BOOST_SP_NOEXCEPT BOOST_OVERRIDE
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{
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d_( p_ );
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}
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void destroy() BOOST_SP_NOEXCEPT BOOST_OVERRIDE
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{
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#if !defined( BOOST_NO_CXX11_ALLOCATOR )
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typedef typename std::allocator_traits<A>::template rebind_alloc< this_type > A2;
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#else
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typedef typename A::template rebind< this_type >::other A2;
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#endif
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A2 a2( a_ );
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this->~this_type();
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a2.deallocate( this, 1 );
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}
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void * get_deleter( sp_typeinfo_ const & ti ) BOOST_SP_NOEXCEPT BOOST_OVERRIDE
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{
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return ti == BOOST_SP_TYPEID_( D )? &reinterpret_cast<char&>( d_ ): 0;
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}
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void * get_local_deleter( sp_typeinfo_ const & ti ) BOOST_SP_NOEXCEPT BOOST_OVERRIDE
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{
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return ti == BOOST_SP_TYPEID_( D )? boost::detail::get_local_deleter( boost::addressof( d_ ) ): 0;
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}
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void * get_untyped_deleter() BOOST_SP_NOEXCEPT BOOST_OVERRIDE
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{
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return &reinterpret_cast<char&>( d_ );
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}
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};
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#ifdef __CODEGUARD__
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# pragma option pop
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#endif
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} // namespace detail
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} // namespace boost
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#endif // #ifndef BOOST_SMART_PTR_DETAIL_SP_COUNTED_IMPL_HPP_INCLUDED
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