1e78f53d1SNikolas Klauser //===----------------------------------------------------------------------===// 2e78f53d1SNikolas Klauser // 3e78f53d1SNikolas Klauser // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4e78f53d1SNikolas Klauser // See https://llvm.org/LICENSE.txt for license information. 5e78f53d1SNikolas Klauser // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6e78f53d1SNikolas Klauser // 7e78f53d1SNikolas Klauser //===----------------------------------------------------------------------===// 8e78f53d1SNikolas Klauser 9*ce777190SNikolas Klauser #ifndef _LIBCPP___CXX03___ALGORITHM_IS_PARTITIONED_H 10*ce777190SNikolas Klauser #define _LIBCPP___CXX03___ALGORITHM_IS_PARTITIONED_H 11e78f53d1SNikolas Klauser 1273fbae83SNikolas Klauser #include <__cxx03/__config> 13e78f53d1SNikolas Klauser 14e78f53d1SNikolas Klauser #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 15e78f53d1SNikolas Klauser # pragma GCC system_header 16e78f53d1SNikolas Klauser #endif 17e78f53d1SNikolas Klauser 18e78f53d1SNikolas Klauser _LIBCPP_BEGIN_NAMESPACE_STD 19e78f53d1SNikolas Klauser 20e78f53d1SNikolas Klauser template <class _InputIterator, class _Predicate> 21e78f53d1SNikolas Klauser _LIBCPP_NODISCARD _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 bool 22e78f53d1SNikolas Klauser is_partitioned(_InputIterator __first, _InputIterator __last, _Predicate __pred) { 23e78f53d1SNikolas Klauser for (; __first != __last; ++__first) 24e78f53d1SNikolas Klauser if (!__pred(*__first)) 25e78f53d1SNikolas Klauser break; 26e78f53d1SNikolas Klauser if (__first == __last) 27e78f53d1SNikolas Klauser return true; 28e78f53d1SNikolas Klauser ++__first; 29e78f53d1SNikolas Klauser for (; __first != __last; ++__first) 30e78f53d1SNikolas Klauser if (__pred(*__first)) 31e78f53d1SNikolas Klauser return false; 32e78f53d1SNikolas Klauser return true; 33e78f53d1SNikolas Klauser } 34e78f53d1SNikolas Klauser 35e78f53d1SNikolas Klauser _LIBCPP_END_NAMESPACE_STD 36e78f53d1SNikolas Klauser 37*ce777190SNikolas Klauser #endif // _LIBCPP___CXX03___ALGORITHM_IS_PARTITIONED_H 38