llvm-project/libcxx/include/__algorithm/is_partitioned.h

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1.1 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_IS_PARTITIONED_H
#define _LIBCPP___ALGORITHM_IS_PARTITIONED_H
#include <__config>
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
# pragma GCC system_header
#endif
_LIBCPP_BEGIN_NAMESPACE_STD
template <class _InputIterator, class _Predicate>
_LIBCPP_NODISCARD_EXT _LIBCPP_CONSTEXPR_AFTER_CXX17 bool
is_partitioned(_InputIterator __first, _InputIterator __last, _Predicate __pred)
{
for (; __first != __last; ++__first)
if (!__pred(*__first))
break;
if ( __first == __last )
return true;
++__first;
for (; __first != __last; ++__first)
if (__pred(*__first))
return false;
return true;
}
_LIBCPP_END_NAMESPACE_STD
#endif // _LIBCPP___ALGORITHM_IS_PARTITIONED_H