mirror of
https://github.com/capstone-engine/llvm-capstone.git
synced 2025-05-17 19:36:48 +00:00
5d7f346bd3
Reviewed By: #libc, ldionne Spies: ldionne, libcxx-commits Differential Revision: https://reviews.llvm.org/D155025
80 lines
2.9 KiB
C++
80 lines
2.9 KiB
C++
//===----------------------------------------------------------------------===//
|
|
//
|
|
// 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___ALGORITHM_PSTL_ROTATE_COPY_H
|
|
#define _LIBCPP___ALGORITHM_PSTL_ROTATE_COPY_H
|
|
|
|
#include <__algorithm/pstl_backend.h>
|
|
#include <__algorithm/pstl_copy.h>
|
|
#include <__algorithm/pstl_frontend_dispatch.h>
|
|
#include <__type_traits/is_execution_policy.h>
|
|
|
|
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
|
|
# pragma GCC system_header
|
|
#endif
|
|
|
|
#if !defined(_LIBCPP_HAS_NO_INCOMPLETE_PSTL) && _LIBCPP_STD_VER >= 17
|
|
|
|
_LIBCPP_BEGIN_NAMESPACE_STD
|
|
|
|
template <class>
|
|
void __pstl_rotate_copy();
|
|
|
|
template <class _ExecutionPolicy,
|
|
class _ForwardIterator,
|
|
class _ForwardOutIterator,
|
|
class _RawPolicy = __remove_cvref_t<_ExecutionPolicy>,
|
|
enable_if_t<is_execution_policy_v<_RawPolicy>, int> = 0>
|
|
[[nodiscard]] _LIBCPP_HIDE_FROM_ABI optional<_ForwardOutIterator>
|
|
__rotate_copy(_ExecutionPolicy&& __policy,
|
|
_ForwardIterator&& __first,
|
|
_ForwardIterator&& __middle,
|
|
_ForwardIterator&& __last,
|
|
_ForwardOutIterator&& __result) noexcept {
|
|
return std::__pstl_frontend_dispatch(
|
|
_LIBCPP_PSTL_CUSTOMIZATION_POINT(__pstl_rotate_copy, _RawPolicy),
|
|
[&__policy](_ForwardIterator __g_first,
|
|
_ForwardIterator __g_middle,
|
|
_ForwardIterator __g_last,
|
|
_ForwardOutIterator __g_result) -> optional<_ForwardOutIterator> {
|
|
auto __result_mid =
|
|
std::__copy(__policy, _ForwardIterator(__g_middle), std::move(__g_last), std::move(__g_result));
|
|
if (!__result_mid)
|
|
return nullopt;
|
|
return std::__copy(__policy, std::move(__g_first), std::move(__g_middle), *std::move(__result_mid));
|
|
},
|
|
std::move(__first),
|
|
std::move(__middle),
|
|
std::move(__last),
|
|
std::move(__result));
|
|
}
|
|
|
|
template <class _ExecutionPolicy,
|
|
class _ForwardIterator,
|
|
class _ForwardOutIterator,
|
|
class _RawPolicy = __remove_cvref_t<_ExecutionPolicy>,
|
|
enable_if_t<is_execution_policy_v<_RawPolicy>, int> = 0>
|
|
_LIBCPP_HIDE_FROM_ABI _ForwardOutIterator rotate_copy(
|
|
_ExecutionPolicy&& __policy,
|
|
_ForwardIterator __first,
|
|
_ForwardIterator __middle,
|
|
_ForwardIterator __last,
|
|
_ForwardOutIterator __result) {
|
|
auto __res =
|
|
std::__rotate_copy(__policy, std::move(__first), std::move(__middle), std::move(__last), std::move(__result));
|
|
if (!__res)
|
|
std::__throw_bad_alloc();
|
|
return *__res;
|
|
}
|
|
|
|
_LIBCPP_END_NAMESPACE_STD
|
|
|
|
#endif // !defined(_LIBCPP_HAS_NO_INCOMPLETE_PSTL) && _LIBCPP_STD_VER >= 17
|
|
|
|
#endif // _LIBCPP___ALGORITHM_PSTL_ROTATE_COPY_H
|