optional.hpp

Go to the documentation of this file.

/* Copyright 2021 - 2026 R. Thomas
 * Copyright 2021 - 2026 Quarkslab
 *
 * 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.
 */
#ifndef LIEF_OPTIONAL_H
#define LIEF_OPTIONAL_H
#include "LIEF/errors.hpp"
 
namespace LIEF {
 
template<class T>
class optional : public result<T> {
  public:
  using result<T>::result;
 
  optional() :
    result<T>(tl::make_unexpected(lief_errors::not_found))
  {}
 
  void reset() noexcept {
    new (this) optional();
  }
};
 
inline tl::unexpected<lief_errors> nullopt() {
  return make_error_code(lief_errors::not_found);
}
 
}
 
#endif