ceph/src/boost/libs/type_traits/include/boost/type_traits/has_trivial_move_constructor.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_CONSTRUCTOR_HPP_INCLUDED
  12 #define BOOST_TT_HAS_TRIVIAL_MOVE_CONSTRUCTOR_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 #ifdef BOOST_HAS_TRIVIAL_MOVE_CONSTRUCTOR
  19
  20 #if defined(BOOST_MSVC) || defined(BOOST_INTEL)
  21 #include <boost/type_traits/is_pod.hpp>
  22 #include <boost/type_traits/is_volatile.hpp>
  23 #endif
  24
  25 #if defined(__GNUC__) || defined(__clang)
  26 #include <boost/type_traits/is_constructible.hpp>
  27 #include <boost/type_traits/is_volatile.hpp>
  28 #endif
  29
  30
  31 namespace boost {
  32
  33 template <typename T> struct has_trivial_move_constructor : public integral_constant<bool, BOOST_HAS_TRIVIAL_MOVE_CONSTRUCTOR(T)>{};
  34
  35 #else
  36
  37 #ifdef __SUNPRO_CC
  38 #include <boost/type_traits/is_constructible.hpp>
  39 #include <boost/type_traits/remove_const.hpp>
  40 #if __cplusplus >= 201103
  41 #define SOLARIS_EXTRA_CHECK && is_constructible<typename remove_const<T>::type, typename remove_const<T>::type&&>::value
  42 #endif
  43 #endif
  44
  45 #ifndef SOLARIS_EXTRA_CHECK
  46 #define SOLARIS_EXTRA_CHECK
  47 #endif
  48
  49 #include <boost/type_traits/is_pod.hpp>
  50 #include <boost/type_traits/is_volatile.hpp>
  51
  52 namespace boost {
  53
  54 template <typename T> struct has_trivial_move_constructor
  55    : public integral_constant<bool, ::boost::is_pod<T>::value && !::boost::is_volatile<T>::value SOLARIS_EXTRA_CHECK>{};
  56
  57 #undef SOLARIS_EXTRA_CHECK
  58
  59 #endif
  60
  61 template <> struct has_trivial_move_constructor<void> : public false_type{};
  62 #ifndef BOOST_NO_CV_VOID_SPECIALIZATIONS
  63 template <> struct has_trivial_move_constructor<void const> : public false_type{};
  64 template <> struct has_trivial_move_constructor<void volatile> : public false_type{};
  65 template <> struct has_trivial_move_constructor<void const volatile> : public false_type{};
  66 #endif
  67 // What should we do with reference types??? The standard seems to suggest these are trivial, even if the thing they reference is not:
  68 template <class T> struct has_trivial_move_constructor<T&> : public true_type{};
  69 #ifndef BOOST_NO_CXX11_RVALUE_REFERENCES
  70 template <class T> struct has_trivial_move_constructor<T&&> : public true_type{};
  71 #endif
  72 // Arrays can not be explicitly copied:
  73 template <class T, std::size_t N> struct has_trivial_move_constructor<T[N]> : public false_type{};
  74 template <class T> struct has_trivial_move_constructor<T[]> : public false_type{};
  75
  76 } // namespace boost
  77
  78 #endif // BOOST_TT_HAS_TRIVIAL_MOVE_CONSTRUCTOR_HPP_INCLUDED