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source: downloads/boost_1_33_1/boost/test/utils/rtti.hpp @ 28

Last change on this file since 28 was 12, checked in by landauf, 17 years ago

added boost

  • Property svn:executable set to *
File size: 2.1 KB
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1//  (C) Copyright Gennadiy Rozental 2005.
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: rtti.hpp,v $
9//
10//  Version     : $Revision: 1.2 $
11//
12//  Description : simple facilities for accessing type information at runtime
13// ***************************************************************************
14
15#ifndef BOOST_TEST_RTTI_HPP_062604GER
16#define BOOST_TEST_RTTI_HPP_062604GER
17
18#include <cstddef>
19
20namespace boost {
21
22namespace rtti {
23
24// ************************************************************************** //
25// **************                   rtti::type_id              ************** //
26// ************************************************************************** //
27
28typedef std::ptrdiff_t id_t;
29
30namespace rtti_detail {
31
32template<typename T>
33struct rttid_holder {
34    static id_t id() { return reinterpret_cast<id_t>( &inst() ); }
35
36private:
37    struct rttid {};
38
39    static rttid const& inst() { static rttid s_inst;  return s_inst; }
40};
41
42} // namespace rtti_detail
43
44//____________________________________________________________________________//
45
46template<typename T>   
47inline id_t
48type_id()
49{
50    return rtti_detail::rttid_holder<T>::id();
51}
52
53//____________________________________________________________________________//
54
55#define BOOST_RTTI_SWITCH( type_id_ ) if( ::boost::rtti::id_t switch_by_id = type_id_ )
56#define BOOST_RTTI_CASE( type )       if( switch_by_id == ::boost::rtti::type_id<type>() )
57
58//____________________________________________________________________________//
59
60} // namespace rtti
61
62} // namespace boost
63
64// ************************************************************************** //
65//   Revision History:
66//
67//   $Log: rtti.hpp,v $
68//   Revision 1.2  2005/05/15 06:45:32  rogeeff
69//   *** empty log message ***
70//
71//   Revision 1.1  2005/04/12 06:48:12  rogeeff
72//   Runtime.Param library initial commit
73//
74// ************************************************************************** //
75
76#endif // BOOST_RT_RTTI_HPP_062604GER
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