Implement P0040r3: Extending memory management tools git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@276544 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/memory b/include/memory index 7a3281e..5cdb60f 100644 --- a/include/memory +++ b/include/memory
@@ -180,6 +180,33 @@ ForwardIterator uninitialized_fill_n(ForwardIterator first, Size n, const T& x); +template <class T> +void destroy_at(T* location); + +template <class ForwardIterator> + void destroy(ForwardIterator first, ForwardIterator last); + +template <class ForwardIterator, class Size> + ForwardIterator destroy_n(ForwardIterator first, Size n); + +template <class InputIterator, class ForwardIterator> + ForwardIterator uninitialized_move(InputIterator first, InputIterator last, ForwardIterator result); + +template <class InputIterator, class Size, class ForwardIterator> + pair<InputIterator,ForwardIterator> uninitialized_move_n(InputIterator first, Size n, ForwardIterator result); + +template <class ForwardIterator> + void uninitialized_value_construct(ForwardIterator first, ForwardIterator last); + +template <class ForwardIterator, class Size> + ForwardIterator uninitialized_value_construct_n(ForwardIterator first, Size n); + +template <class ForwardIterator> + void uninitialized_default_construct(ForwardIterator first, ForwardIterator last); + +template <class ForwardIterator, class Size> + ForwardIterator uninitialized_default_construct_n(ForwardIterator first, Size n); + template <class Y> struct auto_ptr_ref {}; template<class X> @@ -3671,6 +3698,87 @@ return __f; } +#if _LIBCPP_STD_VER > 14 + +template <class _ForwardIterator> +inline _LIBCPP_INLINE_VISIBILITY +void uninitialized_default_construct(_ForwardIterator __first, _ForwardIterator __last) { + using _Vt = typename iterator_traits<_ForwardIterator>::value_type; + for (; __first != __last; ++__first) + ::new((void*)_VSTD::addressof(*__first)) _Vt; +} + +template <class _ForwardIterator, class _Size> +inline _LIBCPP_INLINE_VISIBILITY +_ForwardIterator uninitialized_default_construct_n(_ForwardIterator __first, _Size __n) { + using _Vt = typename iterator_traits<_ForwardIterator>::value_type; + for (; __n > 0; (void)++__first, --__n) + ::new((void*)_VSTD::addressof(*__first)) _Vt; + return __first; +} + + +template <class _ForwardIterator> +inline _LIBCPP_INLINE_VISIBILITY +void uninitialized_value_construct(_ForwardIterator __first, _ForwardIterator __last) { + using _Vt = typename iterator_traits<_ForwardIterator>::value_type; + for (; __first != __last; ++__first) + ::new((void*)_VSTD::addressof(*__first)) _Vt(); +} + +template <class _ForwardIterator, class _Size> +inline _LIBCPP_INLINE_VISIBILITY +_ForwardIterator uninitialized_value_construct_n(_ForwardIterator __first, _Size __n) { + using _Vt = typename iterator_traits<_ForwardIterator>::value_type; + for (; __n > 0; (void)++__first, --__n) + ::new((void*)_VSTD::addressof(*__first)) _Vt(); + return __first; +} + + +template <class _InputIt, class _ForwardIt> +inline _LIBCPP_INLINE_VISIBILITY +_ForwardIt uninitialized_move(_InputIt __first, _InputIt __last, _ForwardIt __res) { + using _Vt = typename iterator_traits<_ForwardIt>::value_type; + for (; __first != __last; (void)++__res, ++__first) + ::new((void*)_VSTD::addressof(*__res)) _Vt(std::move(*__first)); + return __res; +} + +template <class _InputIt, class _Size, class _ForwardIt> +inline _LIBCPP_INLINE_VISIBILITY +pair<_InputIt, _ForwardIt> +uninitialized_move_n(_InputIt __first, _Size __n, _ForwardIt __res) { + using _Vt = typename iterator_traits<_ForwardIt>::value_type; + for (; __n > 0; ++__res, (void)++__first, --__n) + ::new((void*)_VSTD::addressof(*__res)) _Vt(std::move(*__first)); + return {__first, __res}; +} + +template <class _Tp> +inline _LIBCPP_INLINE_VISIBILITY +void destroy_at(_Tp* __loc) { + _LIBCPP_ASSERT(__loc, "null pointer given to destroy_at"); + __loc->~_Tp(); +} + +template <class _ForwardIterator> +inline _LIBCPP_INLINE_VISIBILITY +void destroy(_ForwardIterator __first, _ForwardIterator __last) { + for (; __first != __last; ++__first) + _VSTD::destroy_at(_VSTD::addressof(*__first)); +} + +template <class _ForwardIterator, class _Size> +inline _LIBCPP_INLINE_VISIBILITY +_ForwardIterator destroy_n(_ForwardIterator __first, _Size __n) { + for (; __n > 0; (void)++__first, --__n) + _VSTD::destroy_at(_VSTD::addressof(*__first)); + return __first; +} + +#endif // _LIBCPP_STD_VER > 14 + class _LIBCPP_EXCEPTION_ABI bad_weak_ptr : public std::exception { 