OpenPRA Documentation

packages/engine/scram-node/src/ext/find_iterator.h ​

Convenience iterator adaptor to wrap find calls and results.

Source code ​

cpp
/*
 * Copyright (C) 2014-2018 Olzhas Rakhimov
 * Copyright (C) 2023 OpenPRA ORG Inc.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */


#pragma once

#include <utility>

namespace ext {

template <class Iterator>
class find_iterator : public Iterator {
 public:
  find_iterator(Iterator&& it, const Iterator& it_end)
      : Iterator(std::move(it)), found_(*this != it_end) {}

  explicit operator bool() { return found_; }

 private:
  bool found_;  
};

template <class T, typename Arg>
auto find(T&& container, Arg&& arg) {
  auto it = container.find(std::forward<Arg>(arg));
  return find_iterator<decltype(it)>(std::move(it), container.end());
}

}  // namespace ext

Updated on 2025-11-11 at 16:51:08 +0000