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https://github.com/capstone-engine/llvm-capstone.git
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368faacac7
This commit reverts 5aaefa51 (and also partly 7f285f48e77 and b6d75682f9, which were related to the original commit). As landed, 5aaefa51 had unintended consequences on some downstream bots and didn't have proper coverage upstream due to a few subtle things. Implementing this is something we should do in libc++, however we'll first need to address a few issues listed in https://reviews.llvm.org/D106124#3349710. Differential Revision: https://reviews.llvm.org/D120683
78 lines
2.4 KiB
C++
78 lines
2.4 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef _LIBCPP___ALGORITHM_MOVE_H
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#define _LIBCPP___ALGORITHM_MOVE_H
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#include <__algorithm/unwrap_iter.h>
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#include <__config>
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#include <__utility/move.h>
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#include <cstring>
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#include <type_traits>
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#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
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# pragma GCC system_header
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#endif
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_LIBCPP_BEGIN_NAMESPACE_STD
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// move
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template <class _InputIterator, class _OutputIterator>
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inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14
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_OutputIterator
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__move_constexpr(_InputIterator __first, _InputIterator __last, _OutputIterator __result)
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{
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for (; __first != __last; ++__first, (void) ++__result)
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*__result = _VSTD::move(*__first);
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return __result;
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}
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template <class _InputIterator, class _OutputIterator>
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inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14
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_OutputIterator
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__move(_InputIterator __first, _InputIterator __last, _OutputIterator __result)
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{
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return _VSTD::__move_constexpr(__first, __last, __result);
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}
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template <class _Tp, class _Up>
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inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14
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typename enable_if
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<
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is_same<typename remove_const<_Tp>::type, _Up>::value &&
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is_trivially_move_assignable<_Up>::value,
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_Up*
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>::type
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__move(_Tp* __first, _Tp* __last, _Up* __result)
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{
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const size_t __n = static_cast<size_t>(__last - __first);
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if (__n > 0)
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_VSTD::memmove(__result, __first, __n * sizeof(_Up));
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return __result + __n;
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}
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template <class _InputIterator, class _OutputIterator>
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inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17
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_OutputIterator
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move(_InputIterator __first, _InputIterator __last, _OutputIterator __result)
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{
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if (__libcpp_is_constant_evaluated()) {
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return _VSTD::__move_constexpr(__first, __last, __result);
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} else {
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return _VSTD::__rewrap_iter(__result,
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_VSTD::__move(_VSTD::__unwrap_iter(__first),
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_VSTD::__unwrap_iter(__last),
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_VSTD::__unwrap_iter(__result)));
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}
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}
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_LIBCPP_END_NAMESPACE_STD
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#endif // _LIBCPP___ALGORITHM_MOVE_H
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