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1//===----------------------------------------------------------------------===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9#ifndef _LIBCPP___MEMORY_DESTROY_H10#define _LIBCPP___MEMORY_DESTROY_H11 12#include <__config>13#include <__memory/addressof.h>14#include <__memory/allocator_traits.h>15#include <__memory/construct_at.h>16#include <__utility/move.h>17 18#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)19# pragma GCC system_header20#endif21 22_LIBCPP_PUSH_MACROS23#include <__undef_macros>24 25_LIBCPP_BEGIN_NAMESPACE_STD26 27template <class _ForwardIterator>28_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 _ForwardIterator29__destroy(_ForwardIterator __first, _ForwardIterator __last) {30 for (; __first != __last; ++__first)31 std::__destroy_at(std::addressof(*__first));32 return __first;33}34 35template <class _BidirectionalIterator>36_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 _BidirectionalIterator37__reverse_destroy(_BidirectionalIterator __first, _BidirectionalIterator __last) {38 while (__last != __first) {39 --__last;40 std::__destroy_at(std::addressof(*__last));41 }42 return __last;43}44 45// Destroy all elements in [__first, __last) from left to right using allocator destruction.46template <class _Alloc, class _Iter, class _Sent>47_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 void48__allocator_destroy(_Alloc& __alloc, _Iter __first, _Sent __last) {49 for (; __first != __last; ++__first)50 allocator_traits<_Alloc>::destroy(__alloc, std::addressof(*__first));51}52 53#if _LIBCPP_STD_VER >= 1754template <class _ForwardIterator>55_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 void destroy(_ForwardIterator __first, _ForwardIterator __last) {56 (void)std::__destroy(std::move(__first), std::move(__last));57}58 59template <class _ForwardIterator, class _Size>60_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 _ForwardIterator destroy_n(_ForwardIterator __first, _Size __n) {61 for (; __n > 0; (void)++__first, --__n)62 std::__destroy_at(std::addressof(*__first));63 return __first;64}65#endif66 67_LIBCPP_END_NAMESPACE_STD68 69_LIBCPP_POP_MACROS70 71#endif // _LIBCPP___MEMORY_DESTROY_H72