| //===----------------------------------------------------------------------===// |
| // |
| // 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_FIND_H |
| #define _LIBCPP___ALGORITHM_PSTL_FIND_H |
| |
| #include <__algorithm/comp.h> |
| #include <__algorithm/find.h> |
| #include <__algorithm/pstl_backend.h> |
| #include <__algorithm/pstl_frontend_dispatch.h> |
| #include <__config> |
| #include <__iterator/iterator_traits.h> |
| #include <__type_traits/is_execution_policy.h> |
| #include <__type_traits/remove_cvref.h> |
| #include <__utility/terminate_on_exception.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 _ExecutionPolicy, |
| class _ForwardIterator, |
| class _Predicate, |
| class _RawPolicy = __remove_cvref_t<_ExecutionPolicy>, |
| enable_if_t<is_execution_policy_v<_RawPolicy>, int> = 0> |
| _LIBCPP_HIDE_FROM_ABI _ForwardIterator |
| find_if(_ExecutionPolicy&&, _ForwardIterator __first, _ForwardIterator __last, _Predicate __pred) { |
| using _Backend = typename __select_backend<_RawPolicy>::type; |
| return std::__pstl_find_if<_RawPolicy>(_Backend{}, std::move(__first), std::move(__last), std::move(__pred)); |
| } |
| |
| template <class> |
| void __pstl_find_if_not(); |
| |
| template <class _ExecutionPolicy, |
| class _ForwardIterator, |
| class _Predicate, |
| class _RawPolicy = __remove_cvref_t<_ExecutionPolicy>, |
| enable_if_t<is_execution_policy_v<_RawPolicy>, int> = 0> |
| _LIBCPP_HIDE_FROM_ABI _ForwardIterator |
| find_if_not(_ExecutionPolicy&& __policy, _ForwardIterator __first, _ForwardIterator __last, _Predicate __pred) { |
| return std::__pstl_frontend_dispatch( |
| _LIBCPP_PSTL_CUSTOMIZATION_POINT(__pstl_find_if_not), |
| [&](_ForwardIterator __g_first, _ForwardIterator __g_last, _Predicate __g_pred) { |
| return std::find_if(__policy, __g_first, __g_last, [&](__iter_reference<_ForwardIterator> __value) { |
| return !__g_pred(__value); |
| }); |
| }, |
| std::move(__first), |
| std::move(__last), |
| std::move(__pred)); |
| } |
| |
| template <class> |
| void __pstl_find(); |
| |
| template <class _ExecutionPolicy, |
| class _ForwardIterator, |
| class _Tp, |
| class _RawPolicy = __remove_cvref_t<_ExecutionPolicy>, |
| enable_if_t<is_execution_policy_v<_RawPolicy>, int> = 0> |
| _LIBCPP_HIDE_FROM_ABI _ForwardIterator |
| find(_ExecutionPolicy&& __policy, _ForwardIterator __first, _ForwardIterator __last, const _Tp& __value) { |
| return std::__pstl_frontend_dispatch( |
| _LIBCPP_PSTL_CUSTOMIZATION_POINT(__pstl_find), |
| [&](_ForwardIterator __g_first, _ForwardIterator __g_last, const _Tp& __g_value) { |
| return std::find_if(__policy, __g_first, __g_last, [&](__iter_reference<_ForwardIterator> __element) { |
| return __element == __g_value; |
| }); |
| }, |
| std::move(__first), |
| std::move(__last), |
| __value); |
| } |
| |
| _LIBCPP_END_NAMESPACE_STD |
| |
| #endif // !defined(_LIBCPP_HAS_NO_INCOMPLETE_PSTL) && _LIBCPP_STD_VER >= 17 |
| |
| #endif // _LIBCPP___ALGORITHM_PSTL_FIND_H |