Use own implementation of stod() (#220)

Co-authored-by: Alejandro Hernández Cordero <[email protected]>

gz_ros2_control/src/gz_system.cpp

@@ -61,6 +61,8 @@
 #endif
 
 #include <hardware_interface/hardware_info.hpp>
+#include <hardware_interface/lexical_casts.hpp>
+#include <hardware_interface/types/hardware_interface_type_values.hpp>
 
 struct jointData
 {
@@ -299,7 +301,7 @@ bool GazeboSimSystem::initSim(
         hardware_info.joints.begin(), mimicked_joint_it);
       auto param_it = joint_info.parameters.find("multiplier");
       if (param_it != joint_info.parameters.end()) {
-        mimic_joint.multiplier = std::stod(joint_info.parameters.at("multiplier"));
+        mimic_joint.multiplier = hardware_interface::stod(joint_info.parameters.at("multiplier"));
       } else {
         mimic_joint.multiplier = 1.0;
       }
@@ -336,7 +338,7 @@ bool GazeboSimSystem::initSim(
 
     auto get_initial_value = [this](const hardware_interface::InterfaceInfo & interface_info) {
         if (!interface_info.initial_value.empty()) {
-          double value = std::stod(interface_info.initial_value);
+          double value = hardware_interface::stod(interface_info.initial_value);
           RCLCPP_INFO(this->nh_->get_logger(), "\t\t\t found initial value: %f", value);
           return value;
         } else {