Program Listing for File yaml.hpp

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// Copyright 2021 Amazon.com, Inc. or its affiliates. All Rights Reserved.
//
// 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 ROSBAG2_STORAGE__YAML_HPP_
#define ROSBAG2_STORAGE__YAML_HPP_

#include <string>

#ifdef _WIN32
// This is necessary because of a bug in yaml-cpp's cmake
#define YAML_CPP_DLL
// This is necessary because yaml-cpp does not always use dllimport/dllexport consistently
# pragma warning(push)
# pragma warning(disable:4251)
# pragma warning(disable:4275)
#endif
#include "yaml-cpp/yaml.h"
#ifdef _WIN32
# pragma warning(pop)
#endif

namespace YAML
{

template<typename T>
void optional_assign(const Node & node, std::string field, T & assign_to)
{
  if (node[field]) {
    assign_to = node[field].as<T>();
  }
}

}  // namespace YAML

#endif  // ROSBAG2_STORAGE__YAML_HPP_