diff options
Diffstat (limited to 'contrib/llvm-project/libcxx/include/__algorithm/copy_move_common.h')
-rw-r--r-- | contrib/llvm-project/libcxx/include/__algorithm/copy_move_common.h | 25 |
1 files changed, 11 insertions, 14 deletions
diff --git a/contrib/llvm-project/libcxx/include/__algorithm/copy_move_common.h b/contrib/llvm-project/libcxx/include/__algorithm/copy_move_common.h index c06892e9e3c7..b350507e32ba 100644 --- a/contrib/llvm-project/libcxx/include/__algorithm/copy_move_common.h +++ b/contrib/llvm-project/libcxx/include/__algorithm/copy_move_common.h @@ -38,22 +38,19 @@ _LIBCPP_BEGIN_NAMESPACE_STD template <class _From, class _To> struct __can_lower_copy_assignment_to_memmove { static const bool value = - // If the types are always bitcastable, it's valid to do a bitwise copy between them. - __is_always_bitcastable<_From, _To>::value && - // Reject conversions that wouldn't be performed by the regular built-in assignment (e.g. between arrays). - is_trivially_assignable<_To&, const _From&>::value && - // `memmove` doesn't accept `volatile` pointers, make sure the optimization SFINAEs away in that case. - !is_volatile<_From>::value && - !is_volatile<_To>::value; + // If the types are always bitcastable, it's valid to do a bitwise copy between them. + __is_always_bitcastable<_From, _To>::value && + // Reject conversions that wouldn't be performed by the regular built-in assignment (e.g. between arrays). + is_trivially_assignable<_To&, const _From&>::value && + // `memmove` doesn't accept `volatile` pointers, make sure the optimization SFINAEs away in that case. + !is_volatile<_From>::value && !is_volatile<_To>::value; }; template <class _From, class _To> struct __can_lower_move_assignment_to_memmove { static const bool value = - __is_always_bitcastable<_From, _To>::value && - is_trivially_assignable<_To&, _From&&>::value && - !is_volatile<_From>::value && - !is_volatile<_To>::value; + __is_always_bitcastable<_From, _To>::value && is_trivially_assignable<_To&, _From&&>::value && + !is_volatile<_From>::value && !is_volatile<_To>::value; }; // `memmove` algorithms implementation. @@ -95,8 +92,8 @@ struct __can_rewrap<_InIter, _Sent, _OutIter, // Note that sentinels are always copy-constructible. - __enable_if_t< is_copy_constructible<_InIter>::value && - is_copy_constructible<_OutIter>::value > > : true_type {}; + __enable_if_t< is_copy_constructible<_InIter>::value && is_copy_constructible<_OutIter>::value > > + : true_type {}; template <class _Algorithm, class _InIter, @@ -108,7 +105,7 @@ __unwrap_and_dispatch(_InIter __first, _Sent __last, _OutIter __out_first) { auto __range = std::__unwrap_range(__first, std::move(__last)); auto __result = _Algorithm()(std::move(__range.first), std::move(__range.second), std::__unwrap_iter(__out_first)); return std::make_pair(std::__rewrap_range<_Sent>(std::move(__first), std::move(__result.first)), - std::__rewrap_iter(std::move(__out_first), std::move(__result.second))); + std::__rewrap_iter(std::move(__out_first), std::move(__result.second))); } template <class _Algorithm, |