| //===----------------------------------------------------------------------===// |
| // |
| // 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_IS_PARITTIONED |
| #define _LIBCPP___ALGORITHM_PSTL_IS_PARITTIONED |
| |
| #include <__algorithm/pstl_any_all_none_of.h> |
| #include <__algorithm/pstl_find.h> |
| #include <__algorithm/pstl_frontend_dispatch.h> |
| #include <__config> |
| #include <__iterator/cpp17_iterator_concepts.h> |
| #include <__pstl/configuration.h> |
| #include <__type_traits/enable_if.h> |
| #include <__type_traits/is_execution_policy.h> |
| #include <__type_traits/remove_cvref.h> |
| #include <__utility/move.h> |
| #include <optional> |
| |
| #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) |
| # pragma GCC system_header |
| #endif |
| |
| _LIBCPP_PUSH_MACROS |
| #include <__undef_macros> |
| |
| #if !defined(_LIBCPP_HAS_NO_INCOMPLETE_PSTL) && _LIBCPP_STD_VER >= 17 |
| |
| _LIBCPP_BEGIN_NAMESPACE_STD |
| |
| template <class> |
| void __pstl_is_partitioned(); |
| |
| template <class _ExecutionPolicy, |
| class _ForwardIterator, |
| class _Predicate, |
| class _RawPolicy = __remove_cvref_t<_ExecutionPolicy>, |
| enable_if_t<is_execution_policy_v<_RawPolicy>, int> = 0> |
| [[nodiscard]] _LIBCPP_HIDE_FROM_ABI optional<bool> __is_partitioned( |
| _ExecutionPolicy&& __policy, _ForwardIterator&& __first, _ForwardIterator&& __last, _Predicate&& __pred) { |
| return std::__pstl_frontend_dispatch( |
| _LIBCPP_PSTL_CUSTOMIZATION_POINT(__pstl_is_partitioned, _RawPolicy), |
| [&__policy](_ForwardIterator __g_first, _ForwardIterator __g_last, _Predicate __g_pred) { |
| __g_first = std::find_if_not(__policy, __g_first, __g_last, __g_pred); |
| if (__g_first == __g_last) |
| return true; |
| ++__g_first; |
| return std::none_of(__policy, __g_first, __g_last, __g_pred); |
| }, |
| std::move(__first), |
| std::move(__last), |
| std::move(__pred)); |
| } |
| |
| template <class _ExecutionPolicy, |
| class _ForwardIterator, |
| class _Predicate, |
| class _RawPolicy = __remove_cvref_t<_ExecutionPolicy>, |
| enable_if_t<is_execution_policy_v<_RawPolicy>, int> = 0> |
| _LIBCPP_NODISCARD _LIBCPP_HIDE_FROM_ABI bool |
| is_partitioned(_ExecutionPolicy&& __policy, _ForwardIterator __first, _ForwardIterator __last, _Predicate __pred) { |
| _LIBCPP_REQUIRE_CPP17_FORWARD_ITERATOR(_ForwardIterator, "is_partitioned requires ForwardIterators"); |
| auto __res = std::__is_partitioned(__policy, std::move(__first), std::move(__last), std::move(__pred)); |
| if (!__res) |
| std::__throw_bad_alloc(); |
| return *std::move(__res); |
| } |
| |
| _LIBCPP_END_NAMESPACE_STD |
| |
| #endif // !defined(_LIBCPP_HAS_NO_INCOMPLETE_PSTL) && _LIBCPP_STD_VER >= 17 |
| |
| _LIBCPP_POP_MACROS |
| |
| #endif // _LIBCPP___ALGORITHM_PSTL_IS_PARITTIONED |