493         Ptr() : m_p( CATCH_NULL ){}  in Ptr()
494         Ptr( T* p ) : m_p( p ){  in Ptr()
495             if( m_p )  in Ptr()
496                 m_p->addRef();  in Ptr()
498         Ptr( Ptr const& other ) : m_p( other.m_p ){  in Ptr()
499             if( m_p )  in Ptr()
500                 m_p->addRef();  in Ptr()
503             if( m_p )  in ~Ptr()
504                 m_p->release();  in ~Ptr()
507             if( m_p )  in reset()
508                 m_p->release();  in reset()
509             m_p = CATCH_NULL;  in reset()
521         void swap( Ptr& other ) { std::swap( m_p, other.m_p ); }  in swap()
522         T* get() const{ return m_p; }  in get()
523         T& operator*() const { return *m_p; }  in operator *()
524         T* operator->() const { return m_p; }  in operator ->()
525         bool operator !() const { return m_p == CATCH_NULL; }  in operator !()
526         operator SafeBool::type() const { return SafeBool::makeSafe( m_p != CATCH_NULL ); }  in operator SafeBool::type()
529         T* m_p;  member in Catch::Ptr