ceph/src/boost/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 <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 SOLARIS_EXTRA_CHECK
  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