-#ifndef BOOST_SMART_PTR_DETAIL_SHARED_COUNT_HPP_INCLUDED\r
-#define BOOST_SMART_PTR_DETAIL_SHARED_COUNT_HPP_INCLUDED\r
-\r
-// MS compatible compilers support #pragma once\r
-\r
-#if defined(_MSC_VER) && (_MSC_VER >= 1020)\r
-# pragma once\r
-#endif\r
-\r
-//\r
-// detail/shared_count.hpp\r
-//\r
-// Copyright (c) 2001, 2002, 2003 Peter Dimov and Multi Media Ltd.\r
-// Copyright 2004-2005 Peter Dimov\r
-//\r
-// Distributed under the Boost Software License, Version 1.0. (See\r
-// accompanying file LICENSE_1_0.txt or copy at\r
-// http://www.boost.org/LICENSE_1_0.txt)\r
-//\r
-\r
-#ifdef __BORLANDC__\r
-# pragma warn -8027 // Functions containing try are not expanded inline\r
-#endif\r
-\r
-#include <boost/config.hpp>\r
-#include <boost/checked_delete.hpp>\r
-#include <boost/throw_exception.hpp>\r
-#include <boost/smart_ptr/bad_weak_ptr.hpp>\r
-#include <boost/smart_ptr/detail/sp_counted_base.hpp>\r
-#include <boost/smart_ptr/detail/sp_counted_impl.hpp>\r
-#include <boost/detail/workaround.hpp>\r
-// In order to avoid circular dependencies with Boost.TR1\r
-// we make sure that our include of <memory> doesn't try to\r
-// pull in the TR1 headers: that's why we use this header \r
-// rather than including <memory> directly:\r
-#include <boost/config/no_tr1/memory.hpp> // std::auto_ptr\r
-#include <functional> // std::less\r
-#include <new> // std::bad_alloc\r
-\r
-namespace boost\r
-{\r
-\r
-namespace detail\r
-{\r
-\r
-#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)\r
-\r
-int const shared_count_id = 0x2C35F101;\r
-int const weak_count_id = 0x298C38A4;\r
-\r
-#endif\r
-\r
-struct sp_nothrow_tag {};\r
-\r
-class weak_count;\r
-\r
-class shared_count\r
-{\r
-private:\r
-\r
- sp_counted_base * pi_;\r
-\r
-#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)\r
- int id_;\r
-#endif\r
-\r
- friend class weak_count;\r
-\r
-public:\r
-\r
- shared_count(): pi_(0) // nothrow\r
-#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)\r
- , id_(shared_count_id)\r
-#endif\r
- {\r
- }\r
-\r
- template<class Y> explicit shared_count( Y * p ): pi_( 0 )\r
-#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)\r
- , id_(shared_count_id)\r
-#endif\r
- {\r
-#ifndef BOOST_NO_EXCEPTIONS\r
-\r
- try\r
- {\r
- pi_ = new sp_counted_impl_p<Y>( p );\r
- }\r
- catch(...)\r
- {\r
- boost::checked_delete( p );\r
- throw;\r
- }\r
-\r
-#else\r
-\r
- pi_ = new sp_counted_impl_p<Y>( p );\r
-\r
- if( pi_ == 0 )\r
- {\r
- boost::checked_delete( p );\r
- boost::throw_exception( std::bad_alloc() );\r
- }\r
-\r
-#endif\r
- }\r
-\r
-#if defined( BOOST_MSVC ) && BOOST_WORKAROUND( BOOST_MSVC, <= 1200 )\r
- template<class Y, class D> shared_count( Y * p, D d ): pi_(0)\r
-#else\r
- template<class P, class D> shared_count( P p, D d ): pi_(0)\r
-#endif\r
-#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)\r
- , id_(shared_count_id)\r
-#endif\r
- {\r
-#if defined( BOOST_MSVC ) && BOOST_WORKAROUND( BOOST_MSVC, <= 1200 )\r
- typedef Y* P;\r
-#endif\r
-#ifndef BOOST_NO_EXCEPTIONS\r
-\r
- try\r
- {\r
- pi_ = new sp_counted_impl_pd<P, D>(p, d);\r
- }\r
- catch(...)\r
- {\r
- d(p); // delete p\r
- throw;\r
- }\r
-\r
-#else\r
-\r
- pi_ = new sp_counted_impl_pd<P, D>(p, d);\r
-\r
- if(pi_ == 0)\r
- {\r
- d(p); // delete p\r
- boost::throw_exception(std::bad_alloc());\r
- }\r
-\r
-#endif\r
- }\r
-\r
- template<class P, class D, class A> shared_count( P p, D d, A a ): pi_( 0 )\r
-#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)\r
- , id_(shared_count_id)\r
-#endif\r
- {\r
- typedef sp_counted_impl_pda<P, D, A> impl_type;\r
- typedef typename A::template rebind< impl_type >::other A2;\r
-\r
- A2 a2( a );\r
-\r
-#ifndef BOOST_NO_EXCEPTIONS\r
-\r
- try\r
- {\r
- pi_ = a2.allocate( 1, static_cast< impl_type* >( 0 ) );\r
- new( static_cast< void* >( pi_ ) ) impl_type( p, d, a );\r
- }\r
- catch(...)\r
- {\r
- d( p );\r
-\r
- if( pi_ != 0 )\r
- {\r
- a2.deallocate( static_cast< impl_type* >( pi_ ), 1 );\r
- }\r
-\r
- throw;\r
- }\r
-\r
-#else\r
-\r
- pi_ = a2.allocate( 1, static_cast< impl_type* >( 0 ) );\r
-\r
- if( pi_ != 0 )\r
- {\r
- new( static_cast< void* >( pi_ ) ) impl_type( p, d, a );\r
- }\r
- else\r
- {\r
- d( p );\r
- boost::throw_exception( std::bad_alloc() );\r
- }\r
-\r
-#endif\r
- }\r
-\r
-#ifndef BOOST_NO_AUTO_PTR\r
-\r
- // auto_ptr<Y> is special cased to provide the strong guarantee\r
-\r
- template<class Y>\r
- explicit shared_count( std::auto_ptr<Y> & r ): pi_( new sp_counted_impl_p<Y>( r.get() ) )\r
-#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)\r
- , id_(shared_count_id)\r
-#endif\r
- {\r
-#ifdef BOOST_NO_EXCEPTIONS\r
-\r
- if( pi_ == 0 )\r
- {\r
- boost::throw_exception(std::bad_alloc());\r
- }\r
-\r
-#endif\r
-\r
- r.release();\r
- }\r
-\r
-#endif \r
-\r
- ~shared_count() // nothrow\r
- {\r
- if( pi_ != 0 ) pi_->release();\r
-#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)\r
- id_ = 0;\r
-#endif\r
- }\r
-\r
- shared_count(shared_count const & r): pi_(r.pi_) // nothrow\r
-#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)\r
- , id_(shared_count_id)\r
-#endif\r
- {\r
- if( pi_ != 0 ) pi_->add_ref_copy();\r
- }\r
-\r
-#if defined( BOOST_HAS_RVALUE_REFS )\r
-\r
- shared_count(shared_count && r): pi_(r.pi_) // nothrow\r
-#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)\r
- , id_(shared_count_id)\r
-#endif\r
- {\r
- r.pi_ = 0;\r
- }\r
-\r
-#endif\r
-\r
- explicit shared_count(weak_count const & r); // throws bad_weak_ptr when r.use_count() == 0\r
- shared_count( weak_count const & r, sp_nothrow_tag ); // constructs an empty *this when r.use_count() == 0\r
-\r
- shared_count & operator= (shared_count const & r) // nothrow\r
- {\r
- sp_counted_base * tmp = r.pi_;\r
-\r
- if( tmp != pi_ )\r
- {\r
- if( tmp != 0 ) tmp->add_ref_copy();\r
- if( pi_ != 0 ) pi_->release();\r
- pi_ = tmp;\r
- }\r
-\r
- return *this;\r
- }\r
-\r
- void swap(shared_count & r) // nothrow\r
- {\r
- sp_counted_base * tmp = r.pi_;\r
- r.pi_ = pi_;\r
- pi_ = tmp;\r
- }\r
-\r
- long use_count() const // nothrow\r
- {\r
- return pi_ != 0? pi_->use_count(): 0;\r
- }\r
-\r
- bool unique() const // nothrow\r
- {\r
- return use_count() == 1;\r
- }\r
-\r
- bool empty() const // nothrow\r
- {\r
- return pi_ == 0;\r
- }\r
-\r
- friend inline bool operator==(shared_count const & a, shared_count const & b)\r
- {\r
- return a.pi_ == b.pi_;\r
- }\r
-\r
- friend inline bool operator<(shared_count const & a, shared_count const & b)\r
- {\r
- return std::less<sp_counted_base *>()( a.pi_, b.pi_ );\r
- }\r
-\r
- void * get_deleter( sp_typeinfo const & ti ) const\r
- {\r
- return pi_? pi_->get_deleter( ti ): 0;\r
- }\r
-};\r
-\r
-\r
-class weak_count\r
-{\r
-private:\r
-\r
- sp_counted_base * pi_;\r
-\r
-#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)\r
- int id_;\r
-#endif\r
-\r
- friend class shared_count;\r
-\r
-public:\r
-\r
- weak_count(): pi_(0) // nothrow\r
-#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)\r
- , id_(weak_count_id)\r
-#endif\r
- {\r
- }\r
-\r
- weak_count(shared_count const & r): pi_(r.pi_) // nothrow\r
-#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)\r
- , id_(weak_count_id)\r
-#endif\r
- {\r
- if(pi_ != 0) pi_->weak_add_ref();\r
- }\r
-\r
- weak_count(weak_count const & r): pi_(r.pi_) // nothrow\r
-#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)\r
- , id_(weak_count_id)\r
-#endif\r
- {\r
- if(pi_ != 0) pi_->weak_add_ref();\r
- }\r
-\r
-// Move support\r
-\r
-#if defined( BOOST_HAS_RVALUE_REFS )\r
-\r
- weak_count(weak_count && r): pi_(r.pi_) // nothrow\r
-#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)\r
- , id_(weak_count_id)\r
-#endif\r
- {\r
- r.pi_ = 0;\r
- }\r
-\r
-#endif\r
-\r
- ~weak_count() // nothrow\r
- {\r
- if(pi_ != 0) pi_->weak_release();\r
-#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)\r
- id_ = 0;\r
-#endif\r
- }\r
-\r
- weak_count & operator= (shared_count const & r) // nothrow\r
- {\r
- sp_counted_base * tmp = r.pi_;\r
-\r
- if( tmp != pi_ )\r
- {\r
- if(tmp != 0) tmp->weak_add_ref();\r
- if(pi_ != 0) pi_->weak_release();\r
- pi_ = tmp;\r
- }\r
-\r
- return *this;\r
- }\r
-\r
- weak_count & operator= (weak_count const & r) // nothrow\r
- {\r
- sp_counted_base * tmp = r.pi_;\r
-\r
- if( tmp != pi_ )\r
- {\r
- if(tmp != 0) tmp->weak_add_ref();\r
- if(pi_ != 0) pi_->weak_release();\r
- pi_ = tmp;\r
- }\r
-\r
- return *this;\r
- }\r
-\r
- void swap(weak_count & r) // nothrow\r
- {\r
- sp_counted_base * tmp = r.pi_;\r
- r.pi_ = pi_;\r
- pi_ = tmp;\r
- }\r
-\r
- long use_count() const // nothrow\r
- {\r
- return pi_ != 0? pi_->use_count(): 0;\r
- }\r
-\r
- bool empty() const // nothrow\r
- {\r
- return pi_ == 0;\r
- }\r
-\r
- friend inline bool operator==(weak_count const & a, weak_count const & b)\r
- {\r
- return a.pi_ == b.pi_;\r
- }\r
-\r
- friend inline bool operator<(weak_count const & a, weak_count const & b)\r
- {\r
- return std::less<sp_counted_base *>()(a.pi_, b.pi_);\r
- }\r
-};\r
-\r
-inline shared_count::shared_count( weak_count const & r ): pi_( r.pi_ )\r
-#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)\r
- , id_(shared_count_id)\r
-#endif\r
-{\r
- if( pi_ == 0 || !pi_->add_ref_lock() )\r
- {\r
- boost::throw_exception( boost::bad_weak_ptr() );\r
- }\r
-}\r
-\r
-inline shared_count::shared_count( weak_count const & r, sp_nothrow_tag ): pi_( r.pi_ )\r
-#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)\r
- , id_(shared_count_id)\r
-#endif\r
-{\r
- if( pi_ != 0 && !pi_->add_ref_lock() )\r
- {\r
- pi_ = 0;\r
- }\r
-}\r
-\r
-} // namespace detail\r
-\r
-} // namespace boost\r
-\r
-#ifdef __BORLANDC__\r
-# pragma warn .8027 // Functions containing try are not expanded inline\r
-#endif\r
-\r
-#endif // #ifndef BOOST_SMART_PTR_DETAIL_SHARED_COUNT_HPP_INCLUDED\r
+#ifndef BOOST_SMART_PTR_DETAIL_SHARED_COUNT_HPP_INCLUDED
+#define BOOST_SMART_PTR_DETAIL_SHARED_COUNT_HPP_INCLUDED
+
+// MS compatible compilers support #pragma once
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1020)
+# pragma once
+#endif
+
+//
+// detail/shared_count.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)
+//
+
+#ifdef __BORLANDC__
+# pragma warn -8027 // Functions containing try are not expanded inline
+#endif
+
+#include <boost/config.hpp>
+#include <boost/checked_delete.hpp>
+#include <boost/throw_exception.hpp>
+#include <boost/smart_ptr/bad_weak_ptr.hpp>
+#include <boost/smart_ptr/detail/sp_counted_base.hpp>
+#include <boost/smart_ptr/detail/sp_counted_impl.hpp>
+#include <boost/detail/workaround.hpp>
+// In order to avoid circular dependencies with Boost.TR1
+// we make sure that our include of <memory> doesn't try to
+// pull in the TR1 headers: that's why we use this header
+// rather than including <memory> directly:
+#include <boost/config/no_tr1/memory.hpp> // std::auto_ptr
+#include <functional> // std::less
+#include <new> // std::bad_alloc
+
+namespace boost
+{
+
+namespace detail
+{
+
+#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
+
+int const shared_count_id = 0x2C35F101;
+int const weak_count_id = 0x298C38A4;
+
+#endif
+
+struct sp_nothrow_tag {};
+
+class weak_count;
+
+class shared_count
+{
+private:
+
+ sp_counted_base * pi_;
+
+#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
+ int id_;
+#endif
+
+ friend class weak_count;
+
+public:
+
+ shared_count(): pi_(0) // nothrow
+#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
+ , id_(shared_count_id)
+#endif
+ {
+ }
+
+ template<class Y> explicit shared_count( Y * p ): pi_( 0 )
+#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
+ , id_(shared_count_id)
+#endif
+ {
+#ifndef BOOST_NO_EXCEPTIONS
+
+ try
+ {
+ pi_ = new sp_counted_impl_p<Y>( p );
+ }
+ catch(...)
+ {
+ boost::checked_delete( p );
+ throw;
+ }
+
+#else
+
+ pi_ = new sp_counted_impl_p<Y>( p );
+
+ if( pi_ == 0 )
+ {
+ boost::checked_delete( p );
+ boost::throw_exception( std::bad_alloc() );
+ }
+
+#endif
+ }
+
+#if defined( BOOST_MSVC ) && BOOST_WORKAROUND( BOOST_MSVC, <= 1200 )
+ template<class Y, class D> shared_count( Y * p, D d ): pi_(0)
+#else
+ template<class P, class D> shared_count( P p, D d ): pi_(0)
+#endif
+#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
+ , id_(shared_count_id)
+#endif
+ {
+#if defined( BOOST_MSVC ) && BOOST_WORKAROUND( BOOST_MSVC, <= 1200 )
+ typedef Y* P;
+#endif
+#ifndef BOOST_NO_EXCEPTIONS
+
+ try
+ {
+ pi_ = new sp_counted_impl_pd<P, D>(p, d);
+ }
+ catch(...)
+ {
+ d(p); // delete p
+ throw;
+ }
+
+#else
+
+ pi_ = new sp_counted_impl_pd<P, D>(p, d);
+
+ if(pi_ == 0)
+ {
+ d(p); // delete p
+ boost::throw_exception(std::bad_alloc());
+ }
+
+#endif
+ }
+
+ template<class P, class D, class A> shared_count( P p, D d, A a ): pi_( 0 )
+#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
+ , id_(shared_count_id)
+#endif
+ {
+ typedef sp_counted_impl_pda<P, D, A> impl_type;
+ typedef typename A::template rebind< impl_type >::other A2;
+
+ A2 a2( a );
+
+#ifndef BOOST_NO_EXCEPTIONS
+
+ try
+ {
+ pi_ = a2.allocate( 1, static_cast< impl_type* >( 0 ) );
+ new( static_cast< void* >( pi_ ) ) impl_type( p, d, a );
+ }
+ catch(...)
+ {
+ d( p );
+
+ if( pi_ != 0 )
+ {
+ a2.deallocate( static_cast< impl_type* >( pi_ ), 1 );
+ }
+
+ throw;
+ }
+
+#else
+
+ pi_ = a2.allocate( 1, static_cast< impl_type* >( 0 ) );
+
+ if( pi_ != 0 )
+ {
+ new( static_cast< void* >( pi_ ) ) impl_type( p, d, a );
+ }
+ else
+ {
+ d( p );
+ boost::throw_exception( std::bad_alloc() );
+ }
+
+#endif
+ }
+
+#ifndef BOOST_NO_AUTO_PTR
+
+ // auto_ptr<Y> is special cased to provide the strong guarantee
+
+ template<class Y>
+ explicit shared_count( std::auto_ptr<Y> & r ): pi_( new sp_counted_impl_p<Y>( r.get() ) )
+#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
+ , id_(shared_count_id)
+#endif
+ {
+#ifdef BOOST_NO_EXCEPTIONS
+
+ if( pi_ == 0 )
+ {
+ boost::throw_exception(std::bad_alloc());
+ }
+
+#endif
+
+ r.release();
+ }
+
+#endif
+
+ ~shared_count() // nothrow
+ {
+ if( pi_ != 0 ) pi_->release();
+#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
+ id_ = 0;
+#endif
+ }
+
+ shared_count(shared_count const & r): pi_(r.pi_) // nothrow
+#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
+ , id_(shared_count_id)
+#endif
+ {
+ if( pi_ != 0 ) pi_->add_ref_copy();
+ }
+
+#if defined( BOOST_HAS_RVALUE_REFS )
+
+ shared_count(shared_count && r): pi_(r.pi_) // nothrow
+#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
+ , id_(shared_count_id)
+#endif
+ {
+ r.pi_ = 0;
+ }
+
+#endif
+
+ explicit shared_count(weak_count const & r); // throws bad_weak_ptr when r.use_count() == 0
+ shared_count( weak_count const & r, sp_nothrow_tag ); // constructs an empty *this when r.use_count() == 0
+
+ shared_count & operator= (shared_count const & r) // nothrow
+ {
+ sp_counted_base * tmp = r.pi_;
+
+ if( tmp != pi_ )
+ {
+ if( tmp != 0 ) tmp->add_ref_copy();
+ if( pi_ != 0 ) pi_->release();
+ pi_ = tmp;
+ }
+
+ return *this;
+ }
+
+ void swap(shared_count & r) // nothrow
+ {
+ sp_counted_base * tmp = r.pi_;
+ r.pi_ = pi_;
+ pi_ = tmp;
+ }
+
+ long use_count() const // nothrow
+ {
+ return pi_ != 0? pi_->use_count(): 0;
+ }
+
+ bool unique() const // nothrow
+ {
+ return use_count() == 1;
+ }
+
+ bool empty() const // nothrow
+ {
+ return pi_ == 0;
+ }
+
+ friend inline bool operator==(shared_count const & a, shared_count const & b)
+ {
+ return a.pi_ == b.pi_;
+ }
+
+ friend inline bool operator<(shared_count const & a, shared_count const & b)
+ {
+ return std::less<sp_counted_base *>()( a.pi_, b.pi_ );
+ }
+
+ void * get_deleter( sp_typeinfo const & ti ) const
+ {
+ return pi_? pi_->get_deleter( ti ): 0;
+ }
+};
+
+
+class weak_count
+{
+private:
+
+ sp_counted_base * pi_;
+
+#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
+ int id_;
+#endif
+
+ friend class shared_count;
+
+public:
+
+ weak_count(): pi_(0) // nothrow
+#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
+ , id_(weak_count_id)
+#endif
+ {
+ }
+
+ weak_count(shared_count const & r): pi_(r.pi_) // nothrow
+#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
+ , id_(weak_count_id)
+#endif
+ {
+ if(pi_ != 0) pi_->weak_add_ref();
+ }
+
+ weak_count(weak_count const & r): pi_(r.pi_) // nothrow
+#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
+ , id_(weak_count_id)
+#endif
+ {
+ if(pi_ != 0) pi_->weak_add_ref();
+ }
+
+// Move support
+
+#if defined( BOOST_HAS_RVALUE_REFS )
+
+ weak_count(weak_count && r): pi_(r.pi_) // nothrow
+#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
+ , id_(weak_count_id)
+#endif
+ {
+ r.pi_ = 0;
+ }
+
+#endif
+
+ ~weak_count() // nothrow
+ {
+ if(pi_ != 0) pi_->weak_release();
+#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
+ id_ = 0;
+#endif
+ }
+
+ weak_count & operator= (shared_count const & r) // nothrow
+ {
+ sp_counted_base * tmp = r.pi_;
+
+ if( tmp != pi_ )
+ {
+ if(tmp != 0) tmp->weak_add_ref();
+ if(pi_ != 0) pi_->weak_release();
+ pi_ = tmp;
+ }
+
+ return *this;
+ }
+
+ weak_count & operator= (weak_count const & r) // nothrow
+ {
+ sp_counted_base * tmp = r.pi_;
+
+ if( tmp != pi_ )
+ {
+ if(tmp != 0) tmp->weak_add_ref();
+ if(pi_ != 0) pi_->weak_release();
+ pi_ = tmp;
+ }
+
+ return *this;
+ }
+
+ void swap(weak_count & r) // nothrow
+ {
+ sp_counted_base * tmp = r.pi_;
+ r.pi_ = pi_;
+ pi_ = tmp;
+ }
+
+ long use_count() const // nothrow
+ {
+ return pi_ != 0? pi_->use_count(): 0;
+ }
+
+ bool empty() const // nothrow
+ {
+ return pi_ == 0;
+ }
+
+ friend inline bool operator==(weak_count const & a, weak_count const & b)
+ {
+ return a.pi_ == b.pi_;
+ }
+
+ friend inline bool operator<(weak_count const & a, weak_count const & b)
+ {
+ return std::less<sp_counted_base *>()(a.pi_, b.pi_);
+ }
+};
+
+inline shared_count::shared_count( weak_count const & r ): pi_( r.pi_ )
+#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
+ , id_(shared_count_id)
+#endif
+{
+ if( pi_ == 0 || !pi_->add_ref_lock() )
+ {
+ boost::throw_exception( boost::bad_weak_ptr() );
+ }
+}
+
+inline shared_count::shared_count( weak_count const & r, sp_nothrow_tag ): pi_( r.pi_ )
+#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
+ , id_(shared_count_id)
+#endif
+{
+ if( pi_ != 0 && !pi_->add_ref_lock() )
+ {
+ pi_ = 0;
+ }
+}
+
+} // namespace detail
+
+} // namespace boost
+
+#ifdef __BORLANDC__
+# pragma warn .8027 // Functions containing try are not expanded inline
+#endif
+
+#endif // #ifndef BOOST_SMART_PTR_DETAIL_SHARED_COUNT_HPP_INCLUDED
projects / features.git / blobdiff