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clang intrinsics: Use __is_trivially_constructible and __is_trivially_assignable to test for trivial move construct and assign.

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See https://github.com/boostorg/type_traits/issues/73.
This commit is contained in:
jzmaddock
2018-05-17 18:26:31 +01:00
parent a3114e9f79
commit 8898c6d1bb
1 changed files with 4 additions and 4 deletions
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8
include/boost/type_traits/intrinsics.hpp
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@ -222,11 +222,11 @@
# if __has_feature(is_polymorphic)
# define BOOST_IS_POLYMORPHIC(T) __is_polymorphic(T)
# endif
# if __has_feature(has_trivial_move_constructor)
# define BOOST_HAS_TRIVIAL_MOVE_CONSTRUCTOR(T) (__has_trivial_move_constructor(T) && is_constructible<T, T&&>::value && !::boost::is_volatile<T>::value)
# if __has_extension(is_trivially_constructible)
# define BOOST_HAS_TRIVIAL_MOVE_CONSTRUCTOR(T) (__is_trivially_constructible(T, T&&) && is_constructible<T, T&&>::value && !::boost::is_volatile<T>::value)
# endif
# if __has_feature(has_trivial_move_assign)
# define BOOST_HAS_TRIVIAL_MOVE_ASSIGN(T) (__has_trivial_move_assign(T) && is_assignable<T&, T&&>::value && !::boost::is_volatile<T>::value)
# if __has_extension(is_trivially_assignable)
# define BOOST_HAS_TRIVIAL_MOVE_ASSIGN(T) (__is_trivially_assignable(T&, T&&) && is_assignable<T&, T&&>::value && !::boost::is_volatile<T>::value)
# endif
# if (!defined(unix) && !defined(__unix__)) || defined(__LP64__) || !defined(__GNUC__)
// GCC sometimes lies about alignment requirements