[857] | 1 |
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| 2 | // (C) Copyright Eric Friedman 2002-2003.
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| 3 | // Distributed under the Boost Software License, Version 1.0. (See
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| 4 | // accompanying file LICENSE_1_0.txt or copy at
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| 5 | // http://www.boost.org/LICENSE_1_0.txt)
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| 6 | //
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| 7 | // See http://www.boost.org for most recent version including documentation.
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| 8 |
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| 9 | #ifndef BOOST_VARIANT_DETAIL_HAS_NOTHROW_MOVE_HPP_INCLUDED
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| 10 | #define BOOST_VARIANT_DETAIL_HAS_NOTHROW_MOVE_HPP_INCLUDED
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| 11 |
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| 12 | #include "boost/config.hpp" // for STATIC_CONSTANT
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| 13 | #include "boost/variant/detail/has_trivial_move.hpp"
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| 14 | #include "boost/type_traits/has_nothrow_copy.hpp"
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| 15 | #include "boost/type_traits/has_nothrow_assign.hpp"
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| 16 |
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| 17 | #include "boost/mpl/and.hpp"
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| 18 | #include "boost/mpl/or.hpp"
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| 19 |
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| 20 | // should be the last #include
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| 21 | #include "boost/variant/detail/bool_trait_def.hpp"
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| 22 |
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| 23 | namespace boost {
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| 24 | namespace detail { namespace variant {
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| 25 |
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| 26 | // TRAIT: has_nothrow_move
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| 27 |
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| 28 | template <typename T>
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| 29 | struct has_nothrow_move_impl
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| 30 | {
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| 31 | BOOST_STATIC_CONSTANT(
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| 32 | bool, value = (
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| 33 | ::boost::mpl::or_<
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| 34 | has_trivial_move<T>
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| 35 | , ::boost::mpl::and_<
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| 36 | has_nothrow_copy<T>
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| 37 | , has_nothrow_assign<T>
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| 38 | >
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| 39 | >::type::value
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| 40 | )
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| 41 | );
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| 42 | };
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| 43 |
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| 44 | BOOST_VARIANT_TT_AUX_BOOL_TRAIT_DEF1(
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| 45 | has_nothrow_move
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| 46 | , T
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| 47 | , (::boost::detail::variant::has_nothrow_move_impl<T>::value)
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| 48 | )
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| 49 |
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| 50 |
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| 51 | // TRAIT: has_nothrow_move_constructor
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| 52 |
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| 53 | template <typename T>
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| 54 | struct has_nothrow_move_constructor_impl
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| 55 | {
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| 56 | BOOST_STATIC_CONSTANT(
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| 57 | bool, value = (
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| 58 | ::boost::mpl::or_<
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| 59 | has_nothrow_move<T>
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| 60 | , has_trivial_move_constructor<T>
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| 61 | , has_nothrow_copy<T>
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| 62 | >::type::value
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| 63 | )
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| 64 | );
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| 65 | };
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| 66 |
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| 67 | BOOST_VARIANT_TT_AUX_BOOL_TRAIT_DEF1(
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| 68 | has_nothrow_move_constructor
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| 69 | , T
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| 70 | , (::boost::detail::variant::has_nothrow_move_constructor_impl<T>::value)
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| 71 | )
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| 72 |
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| 73 |
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| 74 | // TRAIT: has_nothrow_move_assign
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| 75 |
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| 76 | template <typename T>
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| 77 | struct has_nothrow_move_assign_impl
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| 78 | {
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| 79 | BOOST_STATIC_CONSTANT(
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| 80 | bool, value = (
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| 81 | ::boost::mpl::or_<
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| 82 | has_nothrow_move<T>
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| 83 | , has_trivial_move_assign<T>
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| 84 | , has_nothrow_assign<T>
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| 85 | >::type::value
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| 86 | )
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| 87 | );
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| 88 | };
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| 89 |
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| 90 | BOOST_VARIANT_TT_AUX_BOOL_TRAIT_DEF1(
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| 91 | has_nothrow_move_assign
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| 92 | , T
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| 93 | , (::boost::detail::variant::has_nothrow_move_assign_impl<T>::value)
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| 94 | )
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| 95 |
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| 96 | }} // namespace detail::variant
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| 97 |
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| 98 | BOOST_VARIANT_TT_AUX_TRAIT_SUFFIX(1,::boost::detail::variant::has_nothrow_move)
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| 99 | BOOST_VARIANT_TT_AUX_TRAIT_SUFFIX(1,::boost::detail::variant::has_nothrow_move_constructor)
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| 100 | BOOST_VARIANT_TT_AUX_TRAIT_SUFFIX(1,::boost::detail::variant::has_nothrow_move_assign)
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| 101 |
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| 102 | } // namespace boost
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| 103 |
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| 104 | #include "boost/variant/detail/bool_trait_undef.hpp"
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| 105 |
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| 106 | #endif // BOOST_VARIANT_DETAIL_HAS_NOTHROW_MOVE_HPP_INCLUDED
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