source: NonGTP/Boost/boost/variant/detail/has_trivial_move.hpp @ 857

Revision 857, 2.6 KB checked in by igarcia, 19 years ago (diff)
Line 
1
2// (C) Copyright Eric Friedman 2002-2003.
3// Distributed under the Boost Software License, Version 1.0. (See
4// accompanying file LICENSE_1_0.txt or copy at
5// http://www.boost.org/LICENSE_1_0.txt)
6//
7// See http://www.boost.org for most recent version including documentation.
8
9#ifndef BOOST_VARIANT_DETAIL_HAS_TRIVIAL_MOVE_HPP_INCLUDED
10#define BOOST_VARIANT_DETAIL_HAS_TRIVIAL_MOVE_HPP_INCLUDED
11
12#include "boost/config.hpp" // for STATIC_CONSTANT
13#include "boost/type_traits/has_trivial_copy.hpp"
14#include "boost/type_traits/has_trivial_assign.hpp"
15
16#include "boost/mpl/and.hpp"
17#include "boost/mpl/or.hpp"
18
19// should be the last #include
20#include "boost/variant/detail/bool_trait_def.hpp"
21
22namespace boost {
23namespace detail { namespace variant {
24
25// TRAIT: has_trivial_move
26
27template <typename T>
28struct has_trivial_move_impl
29{
30    BOOST_STATIC_CONSTANT(
31        bool, value = (
32            ::boost::mpl::and_<
33              has_trivial_copy<T>
34            , has_trivial_assign<T>
35            >::type::value
36            )
37        );
38};
39
40BOOST_VARIANT_TT_AUX_BOOL_TRAIT_DEF1(
41      has_trivial_move
42    , T
43    , (::boost::detail::variant::has_trivial_move_impl<T>::value)
44    )
45
46
47// TRAIT: has_trivial_move_constructor
48
49template <typename T>
50struct has_trivial_move_constructor_impl
51{
52    BOOST_STATIC_CONSTANT(
53        bool, value = (
54            ::boost::mpl::or_<
55              has_trivial_move<T>
56            , has_trivial_copy<T>
57            >::type::value
58            )
59        );
60};
61
62BOOST_VARIANT_TT_AUX_BOOL_TRAIT_DEF1(
63      has_trivial_move_constructor
64    , T
65    , (::boost::detail::variant::has_trivial_move_constructor_impl<T>::value)
66    )
67
68
69// TRAIT: has_trivial_move_assign
70
71template <typename T>
72struct has_trivial_move_assign_impl
73{
74    BOOST_STATIC_CONSTANT(
75        bool, value = (
76            ::boost::mpl::or_<
77              has_trivial_move<T>
78            , has_trivial_assign<T>
79            >::type::value
80            )
81        );
82};
83
84BOOST_VARIANT_TT_AUX_BOOL_TRAIT_DEF1(
85      has_trivial_move_assign
86    , T
87    , (::boost::detail::variant::has_trivial_move_assign_impl<T>::value)
88    )
89
90}} // namespace detail::variant
91
92BOOST_VARIANT_TT_AUX_TRAIT_SUFFIX(1,::boost::detail::variant::has_trivial_move)
93BOOST_VARIANT_TT_AUX_TRAIT_SUFFIX(1,::boost::detail::variant::has_trivial_move_constructor)
94BOOST_VARIANT_TT_AUX_TRAIT_SUFFIX(1,::boost::detail::variant::has_trivial_move_assign)
95
96} // namespace boost
97
98#include "boost/variant/detail/bool_trait_undef.hpp"
99
100#endif // BOOST_VARIANT_DETAIL_HAS_TRIVIAL_MOVE_HPP_INCLUDED
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