boost/type_traits/has_trivial_move_constructor.hpp
// (C) Copyright Steve Cleary, Beman Dawes, Howard Hinnant & John Maddock 2000. // (C) Copyright Eric Friedman 2002-2003. // (C) Copyright Antony Polukhin 2013. // Use, modification and distribution are subject to the Boost Software License, // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at // http://www.boost.org/LICENSE_1_0.txt). // // See http://www.boost.org/libs/type_traits for most recent version including documentation. #ifndef BOOST_TT_HAS_TRIVIAL_MOVE_CONSTRUCTOR_HPP_INCLUDED #define BOOST_TT_HAS_TRIVIAL_MOVE_CONSTRUCTOR_HPP_INCLUDED #include <cstddef> // size_t #include <boost/type_traits/intrinsics.hpp> #include <boost/type_traits/integral_constant.hpp> #ifdef BOOST_HAS_TRIVIAL_MOVE_CONSTRUCTOR #if defined(BOOST_MSVC) || defined(BOOST_INTEL) #include <boost/type_traits/is_pod.hpp> #include <boost/type_traits/is_volatile.hpp> #endif #if defined(__GNUC__) || defined(__clang) #include <boost/type_traits/is_constructible.hpp> #include <boost/type_traits/is_volatile.hpp> #endif namespace boost { template <typename T> struct has_trivial_move_constructor : public integral_constant<bool, BOOST_HAS_TRIVIAL_MOVE_CONSTRUCTOR(T)>{}; #else #ifdef __SUNPRO_CC #include <boost/type_traits/is_constructible.hpp> #include <boost/type_traits/remove_const.hpp> #if __cplusplus >= 201103 #define SOLARIS_EXTRA_CHECK && is_constructible<typename remove_const<T>::type, typename remove_const<T>::type&&>::value #endif #endif #ifndef SOLARIS_EXTRA_CHECK #define SOLARIS_EXTRA_CHECK #endif #include <boost/type_traits/is_pod.hpp> #include <boost/type_traits/is_volatile.hpp> namespace boost { template <typename T> struct has_trivial_move_constructor : public integral_constant<bool, ::boost::is_pod<T>::value && !::boost::is_volatile<T>::value SOLARIS_EXTRA_CHECK>{}; #undef SOLARIS_EXTRA_CHECK #endif template <> struct has_trivial_move_constructor<void> : public false_type{}; #ifndef BOOST_NO_CV_VOID_SPECIALIZATIONS template <> struct has_trivial_move_constructor<void const> : public false_type{}; template <> struct has_trivial_move_constructor<void volatile> : public false_type{}; template <> struct has_trivial_move_constructor<void const volatile> : public false_type{}; #endif // What should we do with reference types??? The standard seems to suggest these are trivial, even if the thing they reference is not: template <class T> struct has_trivial_move_constructor<T&> : public true_type{}; #ifndef BOOST_NO_CXX11_RVALUE_REFERENCES template <class T> struct has_trivial_move_constructor<T&&> : public true_type{}; #endif // Arrays can not be explicitly copied: template <class T, std::size_t N> struct has_trivial_move_constructor<T[N]> : public false_type{}; template <class T> struct has_trivial_move_constructor<T[]> : public false_type{}; } // namespace boost #endif // BOOST_TT_HAS_TRIVIAL_MOVE_CONSTRUCTOR_HPP_INCLUDED





