107 lines
2.7 KiB
C++
107 lines
2.7 KiB
C++
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// (C) Copyright Eric Friedman 2002-2003.
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// Distributed under the Boost Software License, Version 1.0. (See
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// accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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//
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// See http://www.boost.org for most recent version including documentation.
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#ifndef BOOST_VARIANT_DETAIL_HAS_NOTHROW_MOVE_HPP_INCLUDED
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#define BOOST_VARIANT_DETAIL_HAS_NOTHROW_MOVE_HPP_INCLUDED
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#include "boost/config.hpp" // for STATIC_CONSTANT
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#include "boost/variant/detail/has_trivial_move.hpp"
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#include "boost/type_traits/has_nothrow_copy.hpp"
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#include "boost/type_traits/has_nothrow_assign.hpp"
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#include "boost/mpl/and.hpp"
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#include "boost/mpl/or.hpp"
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// should be the last #include
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#include "boost/variant/detail/bool_trait_def.hpp"
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namespace boost {
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namespace detail { namespace variant {
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// TRAIT: has_nothrow_move
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template <typename T>
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struct has_nothrow_move_impl
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{
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BOOST_STATIC_CONSTANT(
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bool, value = (
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::boost::mpl::or_<
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has_trivial_move<T>
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, ::boost::mpl::and_<
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has_nothrow_copy<T>
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, has_nothrow_assign<T>
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>
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>::type::value
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)
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);
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};
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BOOST_VARIANT_TT_AUX_BOOL_TRAIT_DEF1(
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has_nothrow_move
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, T
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, (::boost::detail::variant::has_nothrow_move_impl<T>::value)
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)
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// TRAIT: has_nothrow_move_constructor
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template <typename T>
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struct has_nothrow_move_constructor_impl
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{
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BOOST_STATIC_CONSTANT(
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bool, value = (
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::boost::mpl::or_<
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has_nothrow_move<T>
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, has_trivial_move_constructor<T>
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, has_nothrow_copy<T>
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>::type::value
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)
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);
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};
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BOOST_VARIANT_TT_AUX_BOOL_TRAIT_DEF1(
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has_nothrow_move_constructor
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, T
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, (::boost::detail::variant::has_nothrow_move_constructor_impl<T>::value)
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)
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// TRAIT: has_nothrow_move_assign
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template <typename T>
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struct has_nothrow_move_assign_impl
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{
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BOOST_STATIC_CONSTANT(
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bool, value = (
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::boost::mpl::or_<
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has_nothrow_move<T>
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, has_trivial_move_assign<T>
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, has_nothrow_assign<T>
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>::type::value
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)
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);
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};
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BOOST_VARIANT_TT_AUX_BOOL_TRAIT_DEF1(
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has_nothrow_move_assign
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, T
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, (::boost::detail::variant::has_nothrow_move_assign_impl<T>::value)
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)
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}} // namespace detail::variant
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BOOST_VARIANT_TT_AUX_TRAIT_SUFFIX(1,::boost::detail::variant::has_nothrow_move)
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BOOST_VARIANT_TT_AUX_TRAIT_SUFFIX(1,::boost::detail::variant::has_nothrow_move_constructor)
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BOOST_VARIANT_TT_AUX_TRAIT_SUFFIX(1,::boost::detail::variant::has_nothrow_move_assign)
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} // namespace boost
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#include "boost/variant/detail/bool_trait_undef.hpp"
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#endif // BOOST_VARIANT_DETAIL_HAS_NOTHROW_MOVE_HPP_INCLUDED
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