diff options
Diffstat (limited to 'contrib/llvm-project/libcxx/include/__memory/uninitialized_algorithms.h')
| -rw-r--r-- | contrib/llvm-project/libcxx/include/__memory/uninitialized_algorithms.h | 77 |
1 files changed, 44 insertions, 33 deletions
diff --git a/contrib/llvm-project/libcxx/include/__memory/uninitialized_algorithms.h b/contrib/llvm-project/libcxx/include/__memory/uninitialized_algorithms.h index 90aecb7d6ad2..2b68df8e6d63 100644 --- a/contrib/llvm-project/libcxx/include/__memory/uninitialized_algorithms.h +++ b/contrib/llvm-project/libcxx/include/__memory/uninitialized_algorithms.h @@ -12,6 +12,8 @@ #include <__algorithm/copy.h> #include <__algorithm/move.h> +#include <__algorithm/unwrap_iter.h> +#include <__algorithm/unwrap_range.h> #include <__config> #include <__iterator/iterator_traits.h> #include <__iterator/reverse_iterator.h> @@ -58,12 +60,12 @@ inline _LIBCPP_HIDE_FROM_ABI pair<_InputIterator, _ForwardIterator> __uninitialized_copy(_InputIterator __ifirst, _Sentinel1 __ilast, _ForwardIterator __ofirst, _Sentinel2 __olast) { _ForwardIterator __idx = __ofirst; -#ifndef _LIBCPP_NO_EXCEPTIONS +#ifndef _LIBCPP_HAS_NO_EXCEPTIONS try { #endif for (; __ifirst != __ilast && __idx != __olast; ++__ifirst, (void)++__idx) ::new (_VSTD::__voidify(*__idx)) _ValueType(*__ifirst); -#ifndef _LIBCPP_NO_EXCEPTIONS +#ifndef _LIBCPP_HAS_NO_EXCEPTIONS } catch (...) { _VSTD::__destroy(__ofirst, __idx); throw; @@ -90,12 +92,12 @@ inline _LIBCPP_HIDE_FROM_ABI pair<_InputIterator, _ForwardIterator> __uninitialized_copy_n(_InputIterator __ifirst, _Size __n, _ForwardIterator __ofirst, _Sentinel __olast) { _ForwardIterator __idx = __ofirst; -#ifndef _LIBCPP_NO_EXCEPTIONS +#ifndef _LIBCPP_HAS_NO_EXCEPTIONS try { #endif for (; __n > 0 && __idx != __olast; ++__ifirst, (void)++__idx, (void)--__n) ::new (_VSTD::__voidify(*__idx)) _ValueType(*__ifirst); -#ifndef _LIBCPP_NO_EXCEPTIONS +#ifndef _LIBCPP_HAS_NO_EXCEPTIONS } catch (...) { _VSTD::__destroy(__ofirst, __idx); throw; @@ -121,13 +123,13 @@ inline _LIBCPP_HIDE_FROM_ABI _ForwardIterator __uninitialized_fill(_ForwardIterator __first, _Sentinel __last, const _Tp& __x) { _ForwardIterator __idx = __first; -#ifndef _LIBCPP_NO_EXCEPTIONS +#ifndef _LIBCPP_HAS_NO_EXCEPTIONS try { #endif for (; __idx != __last; ++__idx) ::new (_VSTD::__voidify(*__idx)) _ValueType(__x); -#ifndef _LIBCPP_NO_EXCEPTIONS +#ifndef _LIBCPP_HAS_NO_EXCEPTIONS } catch (...) { @@ -154,13 +156,13 @@ inline _LIBCPP_HIDE_FROM_ABI _ForwardIterator __uninitialized_fill_n(_ForwardIterator __first, _Size __n, const _Tp& __x) { _ForwardIterator __idx = __first; -#ifndef _LIBCPP_NO_EXCEPTIONS +#ifndef _LIBCPP_HAS_NO_EXCEPTIONS try { #endif for (; __n > 0; ++__idx, (void) --__n) ::new (_VSTD::__voidify(*__idx)) _ValueType(__x); -#ifndef _LIBCPP_NO_EXCEPTIONS +#ifndef _LIBCPP_HAS_NO_EXCEPTIONS } catch (...) { @@ -180,7 +182,7 @@ _ForwardIterator uninitialized_fill_n(_ForwardIterator __first, _Size __n, const return _VSTD::__uninitialized_fill_n<_ValueType>(__first, __n, __x); } -#if _LIBCPP_STD_VER > 14 +#if _LIBCPP_STD_VER >= 17 // uninitialized_default_construct @@ -188,12 +190,12 @@ template <class _ValueType, class _ForwardIterator, class _Sentinel> inline _LIBCPP_HIDE_FROM_ABI _ForwardIterator __uninitialized_default_construct(_ForwardIterator __first, _Sentinel __last) { auto __idx = __first; -#ifndef _LIBCPP_NO_EXCEPTIONS +#ifndef _LIBCPP_HAS_NO_EXCEPTIONS try { #endif for (; __idx != __last; ++__idx) ::new (_VSTD::__voidify(*__idx)) _ValueType; -#ifndef _LIBCPP_NO_EXCEPTIONS +#ifndef _LIBCPP_HAS_NO_EXCEPTIONS } catch (...) { _VSTD::__destroy(__first, __idx); throw; @@ -217,12 +219,12 @@ template <class _ValueType, class _ForwardIterator, class _Size> inline _LIBCPP_HIDE_FROM_ABI _ForwardIterator __uninitialized_default_construct_n(_ForwardIterator __first, _Size __n) { auto __idx = __first; -#ifndef _LIBCPP_NO_EXCEPTIONS +#ifndef _LIBCPP_HAS_NO_EXCEPTIONS try { #endif for (; __n > 0; ++__idx, (void) --__n) ::new (_VSTD::__voidify(*__idx)) _ValueType; -#ifndef _LIBCPP_NO_EXCEPTIONS +#ifndef _LIBCPP_HAS_NO_EXCEPTIONS } catch (...) { _VSTD::__destroy(__first, __idx); throw; @@ -245,12 +247,12 @@ template <class _ValueType, class _ForwardIterator, class _Sentinel> inline _LIBCPP_HIDE_FROM_ABI _ForwardIterator __uninitialized_value_construct(_ForwardIterator __first, _Sentinel __last) { auto __idx = __first; -#ifndef _LIBCPP_NO_EXCEPTIONS +#ifndef _LIBCPP_HAS_NO_EXCEPTIONS try { #endif for (; __idx != __last; ++__idx) ::new (_VSTD::__voidify(*__idx)) _ValueType(); -#ifndef _LIBCPP_NO_EXCEPTIONS +#ifndef _LIBCPP_HAS_NO_EXCEPTIONS } catch (...) { _VSTD::__destroy(__first, __idx); throw; @@ -274,12 +276,12 @@ template <class _ValueType, class _ForwardIterator, class _Size> inline _LIBCPP_HIDE_FROM_ABI _ForwardIterator __uninitialized_value_construct_n(_ForwardIterator __first, _Size __n) { auto __idx = __first; -#ifndef _LIBCPP_NO_EXCEPTIONS +#ifndef _LIBCPP_HAS_NO_EXCEPTIONS try { #endif for (; __n > 0; ++__idx, (void) --__n) ::new (_VSTD::__voidify(*__idx)) _ValueType(); -#ifndef _LIBCPP_NO_EXCEPTIONS +#ifndef _LIBCPP_HAS_NO_EXCEPTIONS } catch (...) { _VSTD::__destroy(__first, __idx); throw; @@ -304,13 +306,13 @@ inline _LIBCPP_HIDE_FROM_ABI pair<_InputIterator, _ForwardIterator> __uninitialized_move(_InputIterator __ifirst, _Sentinel1 __ilast, _ForwardIterator __ofirst, _Sentinel2 __olast, _IterMove __iter_move) { auto __idx = __ofirst; -#ifndef _LIBCPP_NO_EXCEPTIONS +#ifndef _LIBCPP_HAS_NO_EXCEPTIONS try { #endif for (; __ifirst != __ilast && __idx != __olast; ++__idx, (void)++__ifirst) { ::new (_VSTD::__voidify(*__idx)) _ValueType(__iter_move(__ifirst)); } -#ifndef _LIBCPP_NO_EXCEPTIONS +#ifndef _LIBCPP_HAS_NO_EXCEPTIONS } catch (...) { _VSTD::__destroy(__ofirst, __idx); throw; @@ -338,12 +340,12 @@ inline _LIBCPP_HIDE_FROM_ABI pair<_InputIterator, _ForwardIterator> __uninitialized_move_n(_InputIterator __ifirst, _Size __n, _ForwardIterator __ofirst, _Sentinel __olast, _IterMove __iter_move) { auto __idx = __ofirst; -#ifndef _LIBCPP_NO_EXCEPTIONS +#ifndef _LIBCPP_HAS_NO_EXCEPTIONS try { #endif for (; __n > 0 && __idx != __olast; ++__idx, (void)++__ifirst, --__n) ::new (_VSTD::__voidify(*__idx)) _ValueType(__iter_move(__ifirst)); -#ifndef _LIBCPP_NO_EXCEPTIONS +#ifndef _LIBCPP_HAS_NO_EXCEPTIONS } catch (...) { _VSTD::__destroy(__ofirst, __idx); throw; @@ -371,7 +373,7 @@ uninitialized_move_n(_InputIterator __ifirst, _Size __n, _ForwardIterator __ofir // This function assumes that destructors do not throw, and that the allocator is bound to // the correct type. template<class _Alloc, class _BidirIter, class = __enable_if_t< - __is_cpp17_bidirectional_iterator<_BidirIter>::value + __has_bidirectional_iterator_category<_BidirIter>::value >> _LIBCPP_HIDE_FROM_ABI constexpr void __allocator_destroy_multidimensional(_Alloc& __alloc, _BidirIter __first, _BidirIter __last) noexcept { @@ -512,7 +514,7 @@ __uninitialized_allocator_value_construct_n_multidimensional(_Alloc& __alloc, _B __guard.__complete(); } -#endif // _LIBCPP_STD_VER > 14 +#endif // _LIBCPP_STD_VER >= 17 // Destroy all elements in [__first, __last) from left to right using allocator destruction. template <class _Alloc, class _Iter, class _Sent> @@ -545,7 +547,7 @@ private: // already copied elements are destroyed in reverse order of their construction. template <class _Alloc, class _Iter1, class _Sent1, class _Iter2> _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 _Iter2 -__uninitialized_allocator_copy(_Alloc& __alloc, _Iter1 __first1, _Sent1 __last1, _Iter2 __first2) { +__uninitialized_allocator_copy_impl(_Alloc& __alloc, _Iter1 __first1, _Sent1 __last1, _Iter2 __first2) { auto __destruct_first = __first2; auto __guard = std::__make_exception_guard(_AllocatorDestroyRangeReverse<_Alloc, _Iter2>(__alloc, __destruct_first, __first2)); @@ -565,14 +567,16 @@ template <class _Type> struct __allocator_has_trivial_copy_construct<allocator<_Type>, _Type> : true_type {}; template <class _Alloc, - class _Type, - class _RawType = __remove_const_t<_Type>, + class _In, + class _RawTypeIn = __remove_const_t<_In>, + class _Out, __enable_if_t< - // using _RawType because of the allocator<T const> extension - is_trivially_copy_constructible<_RawType>::value && is_trivially_copy_assignable<_RawType>::value && - __allocator_has_trivial_copy_construct<_Alloc, _RawType>::value>* = nullptr> -_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 _Type* -__uninitialized_allocator_copy(_Alloc&, const _Type* __first1, const _Type* __last1, _Type* __first2) { + // using _RawTypeIn because of the allocator<T const> extension + is_trivially_copy_constructible<_RawTypeIn>::value && is_trivially_copy_assignable<_RawTypeIn>::value && + is_same<__remove_const_t<_In>, __remove_const_t<_Out> >::value && + __allocator_has_trivial_copy_construct<_Alloc, _RawTypeIn>::value>* = nullptr> +_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 _Out* +__uninitialized_allocator_copy_impl(_Alloc&, _In* __first1, _In* __last1, _Out* __first2) { // TODO: Remove the const_cast once we drop support for std::allocator<T const> if (__libcpp_is_constant_evaluated()) { while (__first1 != __last1) { @@ -582,10 +586,17 @@ __uninitialized_allocator_copy(_Alloc&, const _Type* __first1, const _Type* __la } return __first2; } else { - return std::copy(__first1, __last1, const_cast<_RawType*>(__first2)); + return std::copy(__first1, __last1, const_cast<_RawTypeIn*>(__first2)); } } +template <class _Alloc, class _Iter1, class _Sent1, class _Iter2> +_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 _Iter2 __uninitialized_allocator_copy(_Alloc& __alloc, _Iter1 __first1, _Sent1 __last1, _Iter2 __first2) { + auto __unwrapped_range = std::__unwrap_range(__first1, __last1); + auto __result = std::__uninitialized_allocator_copy_impl(__alloc, __unwrapped_range.first, __unwrapped_range.second, std::__unwrap_iter(__first2)); + return std::__rewrap_iter(__first2, __result); +} + // Move-construct the elements [__first1, __last1) into [__first2, __first2 + N) // if the move constructor is noexcept, where N is distance(__first1, __last1). // @@ -600,7 +611,7 @@ _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 _Iter2 __uninitialized_alloc auto __guard = std::__make_exception_guard(_AllocatorDestroyRangeReverse<_Alloc, _Iter2>(__alloc, __destruct_first, __first2)); while (__first1 != __last1) { -#ifndef _LIBCPP_NO_EXCEPTIONS +#ifndef _LIBCPP_HAS_NO_EXCEPTIONS allocator_traits<_Alloc>::construct(__alloc, std::__to_address(__first2), std::move_if_noexcept(*__first1)); #else allocator_traits<_Alloc>::construct(__alloc, std::__to_address(__first2), std::move(*__first1)); |
