//----------------------------------------------------------------------------- // boost variant/bad_visit.hpp header file // See http://www.boost.org for updates, documentation, and revision history. //----------------------------------------------------------------------------- // // Copyright (c) 2002-2003 // Eric Friedman // // 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) #ifndef BOOST_VARIANT_BAD_VISIT_HPP #define BOOST_VARIANT_BAD_VISIT_HPP #include <exception> namespace boost { ////////////////////////////////////////////////////////////////////////// // class bad_visit // // Exception thrown when a visitation attempt via apply_visitor fails due // to invalid visited subtype or contents. // struct bad_visit : std::exception { public: // std::exception interface virtual const char * what() const throw() { return "boost::bad_visit: " "failed visitation using boost::apply_visitor"; } }; } // namespace boost #endif // BOOST_VARIANT_BAD_VISIT_HPP