maybe_own.hpp

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/*
 * Copyright 2020 Robert Bosch GmbH
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * SPDX-License-Identifier: Apache-2.0
 */
#pragma once
 
#include <memory>
 
namespace cloe {
namespace utility {
 
template <typename T>
class Deleter {
  bool owned_;
 
 public:
  Deleter() : owned_(false) {}
  Deleter(bool owned) : owned_(owned) {}  // NOLINT
  void operator()(T* p) {
    if (owned_) {
      delete p;
    }
  }
};
 
template <typename T>
using maybe_own = std::unique_ptr<T, Deleter<T>>;
 
}  // namespace utility
}  // namespace cloe