1 #ifndef BOOST_SMART_PTR_DETAIL_SP_COUNTED_IMPL_HPP_INCLUDED
2 #define BOOST_SMART_PTR_DETAIL_SP_COUNTED_IMPL_HPP_INCLUDED
4 // MS compatible compilers support #pragma once
6 #if defined(_MSC_VER) && (_MSC_VER >= 1020)
11 // detail/sp_counted_impl.hpp
13 // Copyright (c) 2001, 2002, 2003 Peter Dimov and Multi Media Ltd.
14 // Copyright 2004-2005 Peter Dimov
16 // Distributed under the Boost Software License, Version 1.0. (See
17 // accompanying file LICENSE_1_0.txt or copy at
18 // http://www.boost.org/LICENSE_1_0.txt)
21 #if defined(BOOST_SP_USE_STD_ALLOCATOR) && defined(BOOST_SP_USE_QUICK_ALLOCATOR)
22 # error BOOST_SP_USE_STD_ALLOCATOR and BOOST_SP_USE_QUICK_ALLOCATOR are incompatible.
25 #include <boost/smart_ptr/detail/sp_counted_base.hpp>
26 #include <boost/smart_ptr/detail/sp_noexcept.hpp>
27 #include <boost/checked_delete.hpp>
28 #include <boost/core/addressof.hpp>
29 #include <boost/config.hpp>
31 #if defined(BOOST_SP_USE_QUICK_ALLOCATOR)
32 #include <boost/smart_ptr/detail/quick_allocator.hpp>
35 #include <memory> // std::allocator, std::allocator_traits
36 #include <cstddef> // std::size_t
41 #if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
43 void sp_scalar_constructor_hook( void * px, std::size_t size, void * pn );
44 void sp_scalar_destructor_hook( void * px, std::size_t size, void * pn );
53 template<class D> class local_sp_deleter;
55 template<class D> D * get_local_deleter( D * /*p*/ ) BOOST_SP_NOEXCEPT
60 template<class D> D * get_local_deleter( local_sp_deleter<D> * p ) BOOST_SP_NOEXCEPT;
64 template<class X> class BOOST_SYMBOL_VISIBLE sp_counted_impl_p: public sp_counted_base
70 sp_counted_impl_p( sp_counted_impl_p const & );
71 sp_counted_impl_p & operator= ( sp_counted_impl_p const & );
73 typedef sp_counted_impl_p<X> this_type;
77 explicit sp_counted_impl_p( X * px ): px_( px )
79 #if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
80 boost::sp_scalar_constructor_hook( px, sizeof(X), this );
84 void dispose() BOOST_SP_NOEXCEPT BOOST_OVERRIDE
86 #if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
87 boost::sp_scalar_destructor_hook( px_, sizeof(X), this );
89 boost::checked_delete( px_ );
92 void * get_deleter( sp_typeinfo_ const & ) BOOST_SP_NOEXCEPT BOOST_OVERRIDE
97 void * get_local_deleter( sp_typeinfo_ const & ) BOOST_SP_NOEXCEPT BOOST_OVERRIDE
102 void * get_untyped_deleter() BOOST_SP_NOEXCEPT BOOST_OVERRIDE
107 #if defined(BOOST_SP_USE_STD_ALLOCATOR)
109 void * operator new( std::size_t )
111 return std::allocator<this_type>().allocate( 1, static_cast<this_type *>(0) );
114 void operator delete( void * p )
116 std::allocator<this_type>().deallocate( static_cast<this_type *>(p), 1 );
121 #if defined(BOOST_SP_USE_QUICK_ALLOCATOR)
123 void * operator new( std::size_t )
125 return quick_allocator<this_type>::alloc();
128 void operator delete( void * p )
130 quick_allocator<this_type>::dealloc( p );
137 // Borland's Codeguard trips up over the -Vx- option here:
140 # pragma option push -Vx-
143 template<class P, class D> class BOOST_SYMBOL_VISIBLE sp_counted_impl_pd: public sp_counted_base
147 P ptr; // copy constructor must not throw
148 D del; // copy/move constructor must not throw
150 sp_counted_impl_pd( sp_counted_impl_pd const & );
151 sp_counted_impl_pd & operator= ( sp_counted_impl_pd const & );
153 typedef sp_counted_impl_pd<P, D> this_type;
157 // pre: d(p) must not throw
159 #if !defined( BOOST_NO_CXX11_RVALUE_REFERENCES )
161 sp_counted_impl_pd( P p, D & d ): ptr( p ), del( static_cast< D&& >( d ) )
167 sp_counted_impl_pd( P p, D & d ): ptr( p ), del( d )
173 sp_counted_impl_pd( P p ): ptr( p ), del()
177 void dispose() BOOST_SP_NOEXCEPT BOOST_OVERRIDE
182 void * get_deleter( sp_typeinfo_ const & ti ) BOOST_SP_NOEXCEPT BOOST_OVERRIDE
184 return ti == BOOST_SP_TYPEID_(D)? &reinterpret_cast<char&>( del ): 0;
187 void * get_local_deleter( sp_typeinfo_ const & ti ) BOOST_SP_NOEXCEPT BOOST_OVERRIDE
189 return ti == BOOST_SP_TYPEID_(D)? boost::detail::get_local_deleter( boost::addressof( del ) ): 0;
192 void * get_untyped_deleter() BOOST_SP_NOEXCEPT BOOST_OVERRIDE
194 return &reinterpret_cast<char&>( del );
197 #if defined(BOOST_SP_USE_STD_ALLOCATOR)
199 void * operator new( std::size_t )
201 return std::allocator<this_type>().allocate( 1, static_cast<this_type *>(0) );
204 void operator delete( void * p )
206 std::allocator<this_type>().deallocate( static_cast<this_type *>(p), 1 );
211 #if defined(BOOST_SP_USE_QUICK_ALLOCATOR)
213 void * operator new( std::size_t )
215 return quick_allocator<this_type>::alloc();
218 void operator delete( void * p )
220 quick_allocator<this_type>::dealloc( p );
226 template<class P, class D, class A> class BOOST_SYMBOL_VISIBLE sp_counted_impl_pda: public sp_counted_base
230 P p_; // copy constructor must not throw
231 D d_; // copy/move constructor must not throw
232 A a_; // copy constructor must not throw
234 sp_counted_impl_pda( sp_counted_impl_pda const & );
235 sp_counted_impl_pda & operator= ( sp_counted_impl_pda const & );
237 typedef sp_counted_impl_pda<P, D, A> this_type;
241 // pre: d( p ) must not throw
243 #if !defined( BOOST_NO_CXX11_RVALUE_REFERENCES )
245 sp_counted_impl_pda( P p, D & d, A a ): p_( p ), d_( static_cast< D&& >( d ) ), a_( a )
251 sp_counted_impl_pda( P p, D & d, A a ): p_( p ), d_( d ), a_( a )
257 sp_counted_impl_pda( P p, A a ): p_( p ), d_( a ), a_( a )
261 void dispose() BOOST_SP_NOEXCEPT BOOST_OVERRIDE
266 void destroy() BOOST_SP_NOEXCEPT BOOST_OVERRIDE
268 #if !defined( BOOST_NO_CXX11_ALLOCATOR )
270 typedef typename std::allocator_traits<A>::template rebind_alloc< this_type > A2;
274 typedef typename A::template rebind< this_type >::other A2;
282 a2.deallocate( this, 1 );
285 void * get_deleter( sp_typeinfo_ const & ti ) BOOST_SP_NOEXCEPT BOOST_OVERRIDE
287 return ti == BOOST_SP_TYPEID_( D )? &reinterpret_cast<char&>( d_ ): 0;
290 void * get_local_deleter( sp_typeinfo_ const & ti ) BOOST_SP_NOEXCEPT BOOST_OVERRIDE
292 return ti == BOOST_SP_TYPEID_( D )? boost::detail::get_local_deleter( boost::addressof( d_ ) ): 0;
295 void * get_untyped_deleter() BOOST_SP_NOEXCEPT BOOST_OVERRIDE
297 return &reinterpret_cast<char&>( d_ );
305 } // namespace detail
309 #endif // #ifndef BOOST_SMART_PTR_DETAIL_SP_COUNTED_IMPL_HPP_INCLUDED