| 1 | // (C) Copyright Gennadiy Rozental 2001. |
| 2 | // Distributed under the Boost Software License, Version 1.0. |
| 3 | // (See accompanying file LICENSE_1_0.txt or copy at |
| 4 | // http://www.boost.org/LICENSE_1_0.txt) |
| 5 | |
| 6 | // See http://www.boost.org/libs/test for the library home page. |
| 7 | // |
| 8 | // File : $RCSfile$ |
| 9 | // |
| 10 | // Version : $Revision$ |
| 11 | // |
| 12 | // Description : simple facilities for accessing type information at runtime |
| 13 | // *************************************************************************** |
| 14 | |
| 15 | #ifndef BOOST_TEST_UTILS_RTTI_HPP |
| 16 | #define BOOST_TEST_UTILS_RTTI_HPP |
| 17 | |
| 18 | // C Runtime |
| 19 | #include <cstddef> |
| 20 | #include <boost/test/detail/config.hpp> |
| 21 | |
| 22 | namespace boost { |
| 23 | namespace rtti { |
| 24 | |
| 25 | // ************************************************************************** // |
| 26 | // ************** rtti::type_id ************** // |
| 27 | // ************************************************************************** // |
| 28 | |
| 29 | typedef std::ptrdiff_t id_t; |
| 30 | |
| 31 | namespace rtti_detail { |
| 32 | |
| 33 | template<typename T> |
| 34 | struct BOOST_TEST_DECL rttid_holder { |
| 35 | static id_t id() { return reinterpret_cast<id_t>( &inst() ); } |
| 36 | |
| 37 | private: |
| 38 | struct rttid {}; |
| 39 | |
| 40 | static rttid const& inst() { static rttid s_inst; return s_inst; } |
| 41 | }; |
| 42 | |
| 43 | } // namespace rtti_detail |
| 44 | |
| 45 | //____________________________________________________________________________// |
| 46 | |
| 47 | template<typename T> |
| 48 | BOOST_TEST_DECL inline id_t |
| 49 | type_id() |
| 50 | { |
| 51 | return rtti_detail::rttid_holder<T>::id(); |
| 52 | } |
| 53 | |
| 54 | //____________________________________________________________________________// |
| 55 | |
| 56 | #define BOOST_RTTI_SWITCH( type_id_ ) if( ::boost::rtti::id_t switch_by_id = type_id_ ) |
| 57 | #define BOOST_RTTI_CASE( type ) if( switch_by_id == ::boost::rtti::type_id<type>() ) |
| 58 | |
| 59 | //____________________________________________________________________________// |
| 60 | |
| 61 | } // namespace rtti |
| 62 | } // namespace boost |
| 63 | |
| 64 | #endif // BOOST_TEST_UTILS_RTTI_HPP |
| 65 | |