boost/signals2/expired_slot.hpp

0001 // Boost.Signals2 library
0002
0003 // Copyright Frank Mori Hess 2007-2010.
0004 // Use, modification and
0005 // distribution is subject to the Boost Software License, Version
0006 // 1.0. (See accompanying file LICENSE_1_0.txt or copy at
0007 // http://www.boost.org/LICENSE_1_0.txt)
0008
0009 // For more information, see http://www.boost.org
0010
0011 #ifndef BOOST_SIGNALS2_EXPIRED_SLOT_HPP
0012 #define BOOST_SIGNALS2_EXPIRED_SLOT_HPP
0013
0014 #include <boost/smart_ptr/bad_weak_ptr.hpp>
0015
0016 namespace boost
0017 {
0018   namespace signals2
0019   {
0020     class expired_slot: public bad_weak_ptr
0021     {
0022     public:
0023       virtual char const * what() const throw()
0024       {
0025         return "boost::signals2::expired_slot";
0026       }
0027     };
0028   }
0029 } // end namespace boost
0030
0031 #endif // BOOST_SIGNALS2_EXPIRED_SLOT_HPP