#ifndef BOOST_ENABLE_SHARED_FROM_THIS_HPP_INCLUDED #define BOOST_ENABLE_SHARED_FROM_THIS_HPP_INCLUDED // // enable_shared_from_this.hpp // // Copyright (c) 2002 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) // // http://www.boost.org/libs/smart_ptr/enable_shared_from_this.html // #include #include #include #include namespace boost { template class enable_shared_from_this { protected: enable_shared_from_this() { } enable_shared_from_this(enable_shared_from_this const &) { } enable_shared_from_this & operator=(enable_shared_from_this const &) { return *this; } ~enable_shared_from_this() { } public: shared_ptr shared_from_this() { shared_ptr p(_internal_weak_this); BOOST_ASSERT(p.get() == this); return p; } shared_ptr shared_from_this() const { shared_ptr p(_internal_weak_this); BOOST_ASSERT(p.get() == this); return p; } // Note: No, you don't need to initialize _internal_weak_this // // Please read the documentation, not the code // // http://www.boost.org/libs/smart_ptr/enable_shared_from_this.html typedef T _internal_element_type; // for bcc 5.5.1 mutable weak_ptr<_internal_element_type> _internal_weak_this; }; } // namespace boost #endif // #ifndef BOOST_ENABLE_SHARED_FROM_THIS_HPP_INCLUDED