libcxx/include/__algorithm/any_of.h

   1 // -*- C++ -*-
   2 //===----------------------------------------------------------------------===//
   3 //
   4 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   5 // See https://llvm.org/LICENSE.txt for license information.
   6 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   7 //
   8 //===----------------------------------------------------------------------===//
   9
  10 #ifndef _LIBCPP___ALGORITHM_ANY_OF_H
  11 #define _LIBCPP___ALGORITHM_ANY_OF_H
  12
  13 #include <__config>
  14 #include <__functional/identity.h>
  15 #include <__type_traits/invoke.h>
  16
  17 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
  18 #  pragma GCC system_header
  19 #endif
  20
  21 _LIBCPP_BEGIN_NAMESPACE_STD
  22
  23 template <class _Iter, class _Sent, class _Proj, class _Pred>
  24 _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 bool
  25 __any_of(_Iter __first, _Sent __last, _Pred& __pred, _Proj& __proj) {
  26   for (; __first != __last; ++__first) {
  27     if (std::__invoke(__pred, std::__invoke(__proj, *__first)))
  28       return true;
  29   }
  30   return false;
  31 }
  32
  33 template <class _InputIterator, class _Predicate>
  34 [[__nodiscard__]] inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 bool
  35 any_of(_InputIterator __first, _InputIterator __last, _Predicate __pred) {
  36   __identity __proj;
  37   return std::__any_of(__first, __last, __pred, __proj);
  38 }
  39
  40 _LIBCPP_END_NAMESPACE_STD
  41
  42 #endif // _LIBCPP___ALGORITHM_ANY_OF_H