v1/__algorithm/find_if.h

0001 // -*- C++ -*-
0002 //===----------------------------------------------------------------------===//
0003 //
0004 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
0005 // See https://llvm.org/LICENSE.txt for license information.
0006 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
0007 //
0008 //===----------------------------------------------------------------------===//
0009
0010 #ifndef _LIBCPP___ALGORITHM_FIND_IF_H
0011 #define _LIBCPP___ALGORITHM_FIND_IF_H
0012
0013 #include <__config>
0014
0015 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
0016 #  pragma GCC system_header
0017 #endif
0018
0019 _LIBCPP_BEGIN_NAMESPACE_STD
0020
0021 template <class _InputIterator, class _Predicate>
0022 [[__nodiscard__]] inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 _InputIterator
0023 find_if(_InputIterator __first, _InputIterator __last, _Predicate __pred) {
0024   for (; __first != __last; ++__first)
0025     if (__pred(*__first))
0026       break;
0027   return __first;
0028 }
0029
0030 _LIBCPP_END_NAMESPACE_STD
0031
0032 #endif // _LIBCPP___ALGORITHM_FIND_IF_H