1fe6060f1SDimitry Andric //===----------------------------------------------------------------------===// 2fe6060f1SDimitry Andric // 3fe6060f1SDimitry Andric // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4fe6060f1SDimitry Andric // See https://llvm.org/LICENSE.txt for license information. 5fe6060f1SDimitry Andric // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6fe6060f1SDimitry Andric // 7fe6060f1SDimitry Andric //===----------------------------------------------------------------------===// 8fe6060f1SDimitry Andric 9fe6060f1SDimitry Andric #ifndef _LIBCPP___ALGORITHM_IS_PARTITIONED_H 10fe6060f1SDimitry Andric #define _LIBCPP___ALGORITHM_IS_PARTITIONED_H 11fe6060f1SDimitry Andric 12fe6060f1SDimitry Andric #include <__config> 13fe6060f1SDimitry Andric 14fe6060f1SDimitry Andric #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 15fe6060f1SDimitry Andric # pragma GCC system_header 16fe6060f1SDimitry Andric #endif 17fe6060f1SDimitry Andric 18fe6060f1SDimitry Andric _LIBCPP_BEGIN_NAMESPACE_STD 19fe6060f1SDimitry Andric 20fe6060f1SDimitry Andric template <class _InputIterator, class _Predicate> 21*0fca6ea1SDimitry Andric _LIBCPP_NODISCARD _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 bool is_partitioned(_InputIterator __first,_InputIterator __last,_Predicate __pred)22cb14a3feSDimitry Andricis_partitioned(_InputIterator __first, _InputIterator __last, _Predicate __pred) { 23fe6060f1SDimitry Andric for (; __first != __last; ++__first) 24fe6060f1SDimitry Andric if (!__pred(*__first)) 25fe6060f1SDimitry Andric break; 26fe6060f1SDimitry Andric if (__first == __last) 27fe6060f1SDimitry Andric return true; 28fe6060f1SDimitry Andric ++__first; 29fe6060f1SDimitry Andric for (; __first != __last; ++__first) 30fe6060f1SDimitry Andric if (__pred(*__first)) 31fe6060f1SDimitry Andric return false; 32fe6060f1SDimitry Andric return true; 33fe6060f1SDimitry Andric } 34fe6060f1SDimitry Andric 35fe6060f1SDimitry Andric _LIBCPP_END_NAMESPACE_STD 36fe6060f1SDimitry Andric 37fe6060f1SDimitry Andric #endif // _LIBCPP___ALGORITHM_IS_PARTITIONED_H 38