← Back to branch summary

~tsarev/boostdc/cmake

« back to all changes in this revision

Viewing changes to boost/boost/type_traits/is_union.hpp

  • Committer: bigmuscle
  • Date: 2010-05-08 08:47:15 UTC
  • Revision ID: svn-v4:5fb55d53-692c-0410-a46a-e90ab66e00ee:trunk:497
removed old boost version

Show diffs side-by-side

added added

removed removed

Lines of Context:
boost/boost/type_traits/is_union.hpp
1
 
 
2
 
//  (C) Copyright Dave Abrahams, Steve Cleary, Beman Dawes, Howard
3
 
//  Hinnant & John Maddock 2000.  
4
 
//  Use, modification and distribution are subject to the Boost Software License,
5
 
//  Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
6
 
//  http://www.boost.org/LICENSE_1_0.txt).
7
 
//
8
 
//  See http://www.boost.org/libs/type_traits for most recent version including documentation.
9
 
 
10
 
 
11
 
#ifndef BOOST_TT_IS_UNION_HPP_INCLUDED
12
 
#define BOOST_TT_IS_UNION_HPP_INCLUDED
13
 
 
14
 
#include <boost/type_traits/remove_cv.hpp>
15
 
#include <boost/type_traits/config.hpp>
16
 
#include <boost/type_traits/intrinsics.hpp>
17
 
 
18
 
// should be the last #include
19
 
#include <boost/type_traits/detail/bool_trait_def.hpp>
20
 
 
21
 
namespace boost {
22
 
 
23
 
namespace detail {
24
 
#ifndef __GNUC__
25
 
template <typename T> struct is_union_impl
26
 
{
27
 
   typedef typename remove_cv<T>::type cvt;
28
 
   BOOST_STATIC_CONSTANT(bool, value = BOOST_IS_UNION(cvt));
29
 
};
30
 
#else
31
 
//
32
 
// using remove_cv here generates a whole load of needless
33
 
// warnings with gcc, since it doesn't do any good with gcc
34
 
// in any case (at least at present), just remove it:
35
 
//
36
 
template <typename T> struct is_union_impl
37
 
{
38
 
   BOOST_STATIC_CONSTANT(bool, value = BOOST_IS_UNION(T));
39
 
};
40
 
#endif
41
 
} // namespace detail
42
 
 
43
 
BOOST_TT_AUX_BOOL_TRAIT_DEF1(is_union,T,::boost::detail::is_union_impl<T>::value)
44
 
 
45
 
} // namespace boost
46
 
 
47
 
#include <boost/type_traits/detail/bool_trait_undef.hpp>
48
 
 
49
 
#endif // BOOST_TT_IS_UNION_HPP_INCLUDED