1 | |
2 | // (C) Copyright Steve Cleary, Beman Dawes, Howard Hinnant & John Maddock 2000. |
3 | // (C) Copyright Eric Friedman 2002-2003. |
4 | // (C) Copyright Antony Polukhin 2013. |
5 | // Use, modification and distribution are subject to the Boost Software License, |
6 | // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at |
7 | // http://www.boost.org/LICENSE_1_0.txt). |
8 | // |
9 | // See http://www.boost.org/libs/type_traits for most recent version including documentation. |
10 | |
11 | #ifndef BOOST_TT_HAS_TRIVIAL_MOVE_ASSIGN_HPP_INCLUDED |
12 | #define BOOST_TT_HAS_TRIVIAL_MOVE_ASSIGN_HPP_INCLUDED |
13 | |
14 | #include <cstddef> // size_t |
15 | #include <boost/type_traits/intrinsics.hpp> |
16 | #include <boost/type_traits/integral_constant.hpp> |
17 | |
18 | #if !defined(BOOST_HAS_TRIVIAL_MOVE_ASSIGN) || defined(BOOST_MSVC) || defined(BOOST_INTEL) |
19 | #include <boost/type_traits/is_pod.hpp> |
20 | #include <boost/type_traits/is_const.hpp> |
21 | #include <boost/type_traits/is_volatile.hpp> |
22 | #ifdef BOOST_MSVC |
23 | #include <boost/type_traits/is_reference.hpp> |
24 | #endif |
25 | #endif |
26 | |
27 | #if defined(__GNUC__) || defined(__clang) |
28 | #include <boost/type_traits/is_assignable.hpp> |
29 | #include <boost/type_traits/is_volatile.hpp> |
30 | #endif |
31 | |
32 | #ifdef __SUNPRO_CC |
33 | #include <boost/type_traits/is_assignable.hpp> |
34 | #include <boost/type_traits/remove_const.hpp> |
35 | #if __cplusplus >= 201103 |
36 | #define SOLARIS_EXTRA_CHECK && is_assignable<typename remove_const<T>::type&, typename remove_const<T>::type&&>::value |
37 | #endif |
38 | #endif |
39 | |
40 | #ifndef SOLARIS_EXTRA_CHECK |
41 | #define |
42 | #endif |
43 | |
44 | namespace boost{ |
45 | |
46 | template <typename T> |
47 | struct has_trivial_move_assign : public integral_constant<bool, |
48 | #ifdef BOOST_HAS_TRIVIAL_MOVE_ASSIGN |
49 | BOOST_HAS_TRIVIAL_MOVE_ASSIGN(T) |
50 | #else |
51 | ::boost::is_pod<T>::value && !::boost::is_const<T>::value && !::boost::is_volatile<T>::value SOLARIS_EXTRA_CHECK |
52 | #endif |
53 | > {}; |
54 | |
55 | template <> struct has_trivial_move_assign<void> : public false_type{}; |
56 | #ifndef BOOST_NO_CV_VOID_SPECIALIZATIONS |
57 | template <> struct has_trivial_move_assign<void const> : public false_type{}; |
58 | template <> struct has_trivial_move_assign<void const volatile> : public false_type{}; |
59 | template <> struct has_trivial_move_assign<void volatile> : public false_type{}; |
60 | #endif |
61 | template <class T> struct has_trivial_move_assign<T&> : public false_type{}; |
62 | #ifndef BOOST_NO_CXX11_RVALUE_REFERENCES |
63 | template <class T> struct has_trivial_move_assign<T&&> : public false_type{}; |
64 | #endif |
65 | // Array types are not assignable: |
66 | template <class T, std::size_t N> struct has_trivial_move_assign<T[N]> : public false_type{}; |
67 | template <class T> struct has_trivial_move_assign<T[]> : public false_type{}; |
68 | |
69 | } // namespace boost |
70 | |
71 | #undef SOLARIS_EXTRA_CHECK |
72 | |
73 | #endif // BOOST_TT_HAS_TRIVIAL_MOVE_ASSIGN_HPP_INCLUDED |
74 | |