.. _program_listing_file_include_rclcpp_parameter_map.hpp:

Program Listing for File parameter_map.hpp
==========================================

|exhale_lsh| :ref:`Return to documentation for file <file_include_rclcpp_parameter_map.hpp>` (``include/rclcpp/parameter_map.hpp``)

.. |exhale_lsh| unicode:: U+021B0 .. UPWARDS ARROW WITH TIP LEFTWARDS

.. code-block:: cpp

   // Copyright 2018 Open Source Robotics Foundation, Inc.
   //
   // 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 RCLCPP__PARAMETER_MAP_HPP_
   #define RCLCPP__PARAMETER_MAP_HPP_
   
   #include <rcl_yaml_param_parser/parser.h>
   #include <rcl_yaml_param_parser/types.h>
   
   #include <string>
   #include <unordered_map>
   #include <vector>
   
   #include "rclcpp/exceptions.hpp"
   #include "rclcpp/parameter.hpp"
   #include "rclcpp/parameter_value.hpp"
   #include "rclcpp/visibility_control.hpp"
   
   namespace rclcpp
   {
   
   using ParameterMap = std::unordered_map<std::string, std::vector<Parameter>>;
   
   RCLCPP_PUBLIC
   ParameterMap
   parameter_map_from(const rcl_params_t * const c_params, const char * node_fqn = nullptr);
   
   RCLCPP_PUBLIC
   ParameterValue
   parameter_value_from(const rcl_variant_t * const c_value);
   
   RCLCPP_PUBLIC
   ParameterMap
   parameter_map_from_yaml_file(const std::string & yaml_filename, const char * node_fqn = nullptr);
   
   RCLCPP_PUBLIC
   std::vector<Parameter>
   parameters_from_map(const ParameterMap & parameter_map, const char * node_fqn = nullptr);
   
   }  // namespace rclcpp
   
   #endif  // RCLCPP__PARAMETER_MAP_HPP_