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//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef _LIBCPP___MEMORY_DESTROY_H
#define _LIBCPP___MEMORY_DESTROY_H
#include <__config>
#include <__memory/addressof.h>
#include <__memory/allocator_traits.h>
#include <__memory/construct_at.h>
#include <__utility/move.h>
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
# pragma GCC system_header
#endif
_LIBCPP_PUSH_MACROS
#include <__undef_macros>
_LIBCPP_BEGIN_NAMESPACE_STD
template <class _ForwardIterator>
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 _ForwardIterator
__destroy(_ForwardIterator __first, _ForwardIterator __last) {
for (; __first != __last; ++__first)
std::__destroy_at(std::addressof(*__first));
return __first;
}
template <class _BidirectionalIterator>
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 _BidirectionalIterator
__reverse_destroy(_BidirectionalIterator __first, _BidirectionalIterator __last) {
while (__last != __first) {
--__last;
std::__destroy_at(std::addressof(*__last));
}
return __last;
}
// Destroy all elements in [__first, __last) from left to right using allocator destruction.
template <class _Alloc, class _Iter, class _Sent>
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 void
__allocator_destroy(_Alloc& __alloc, _Iter __first, _Sent __last) {
for (; __first != __last; ++__first)
allocator_traits<_Alloc>::destroy(__alloc, std::addressof(*__first));
}
#if _LIBCPP_STD_VER >= 17
template <class _ForwardIterator>
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 void destroy(_ForwardIterator __first, _ForwardIterator __last) {
(void)std::__destroy(std::move(__first), std::move(__last));
}
template <class _ForwardIterator, class _Size>
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 _ForwardIterator destroy_n(_ForwardIterator __first, _Size __n) {
for (; __n > 0; (void)++__first, --__n)
std::__destroy_at(std::addressof(*__first));
return __first;
}
#endif
_LIBCPP_END_NAMESPACE_STD
_LIBCPP_POP_MACROS
#endif // _LIBCPP___MEMORY_DESTROY_H
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