boost/type_traits/has_trivial_move_assign.hpp

   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 <boost/type_traits/config.hpp>
  15 #include <boost/type_traits/is_pod.hpp>
  16 #include <boost/type_traits/is_const.hpp>
  17 #include <boost/type_traits/is_volatile.hpp>
  18 #include <boost/type_traits/detail/ice_and.hpp>
  19 #include <boost/type_traits/detail/ice_not.hpp>
  20
  21 // should be the last #include
  22 #include <boost/type_traits/detail/bool_trait_def.hpp>
  23
  24 namespace boost {
  25
  26 namespace detail {
  27
  28 template <typename T>
  29 struct has_trivial_move_assign_impl
  30 {
  31 #ifdef BOOST_HAS_TRIVIAL_MOVE_ASSIGN
  32    BOOST_STATIC_CONSTANT(bool, value = (BOOST_HAS_TRIVIAL_MOVE_ASSIGN(T)));
  33 #else
  34    BOOST_STATIC_CONSTANT(bool, value =
  35            (::boost::type_traits::ice_and<
  36               ::boost::is_pod<T>::value,
  37               ::boost::type_traits::ice_not< ::boost::is_const<T>::value >::value,
  38               ::boost::type_traits::ice_not< ::boost::is_volatile<T>::value >::value
  39            >::value));
  40 #endif
  41 };
  42
  43 } // namespace detail
  44
  45 BOOST_TT_AUX_BOOL_TRAIT_DEF1(has_trivial_move_assign,T,::boost::detail::has_trivial_move_assign_impl<T>::value)
  46 BOOST_TT_AUX_BOOL_TRAIT_SPEC1(has_trivial_move_assign,void,false)
  47 #ifndef BOOST_NO_CV_VOID_SPECIALIZATIONS
  48 BOOST_TT_AUX_BOOL_TRAIT_SPEC1(has_trivial_move_assign,void const,false)
  49 BOOST_TT_AUX_BOOL_TRAIT_SPEC1(has_trivial_move_assign,void const volatile,false)
  50 BOOST_TT_AUX_BOOL_TRAIT_SPEC1(has_trivial_move_assign,void volatile,false)
  51 #endif
  52
  53 } // namespace boost
  54
  55 #include <boost/type_traits/detail/bool_trait_undef.hpp>
  56
  57 #endif // BOOST_TT_HAS_TRIVIAL_MOVE_ASSIGN_HPP_INCLUDED