Cast.hpp

/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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 QUICKSTEP_UTILITY_CAST_HPP_
#define QUICKSTEP_UTILITY_CAST_HPP_

#include <memory>
#include <vector>

namespace quickstep {

/** \addtogroup Utility
 *  @{
 */

/**
 * @brief Casts a vector of pointers stored in shared_ptr objects from const SourceType
 *        to const TargetType.
 *
 * @param source_ptrs The vector of shared_ptr objects to be casted.
 * @return target_ptrs The casted vector of shared_ptr with pointers of type const TargetType.
 */
template<class TargetType, class SourceType>
static std::vector<std::shared_ptr<const TargetType>> CastSharedPtrVector(
    const std::vector<std::shared_ptr<const SourceType>> &source_ptrs) {
  std::vector<std::shared_ptr<const TargetType>> target_ptrs;
  for (const std::shared_ptr<const SourceType> &ptr : source_ptrs) {
    target_ptrs.push_back(std::static_pointer_cast<const TargetType>(ptr));
  }
  return target_ptrs;
}

/** @} */

}  // namespace quickstep

#endif /* QUICKSTEP_UTILITY_CAST_HPP_ */