Removed compilation warnigns (#23)

Signed-off-by: ahcorde <ahcorde@gmail.com>
ros-controls · Jun 30, 2020 · 1227f48 · 1227f48
1 parent 6b3028d
commit 1227f48
Showing 1 changed file with 14 additions and 3 deletions.
diff --git a/gazebo_ros2_control/include/gazebo_ros2_control/robot_hw_sim.hpp b/gazebo_ros2_control/include/gazebo_ros2_control/robot_hw_sim.hpp
@@ -114,9 +114,20 @@ class RobotHWSim : public hardware_interface::RobotHardware
 
   // @note: Avoid using these functions! ros2_control was not built with gazebo_ros_control
   // in mind, keep to using readSim and writeSim so we don't have to update the documents for now
-  virtual hardware_interface::hardware_interface_ret_t init() {}
-  virtual hardware_interface::hardware_interface_ret_t read() {}
-  virtual hardware_interface::hardware_interface_ret_t write() {}
+  virtual hardware_interface::hardware_interface_ret_t init()
+  {
+    return hardware_interface::HW_RET_ERROR;
+  }
+
+  virtual hardware_interface::hardware_interface_ret_t read()
+  {
+    return hardware_interface::HW_RET_ERROR;
+  }
+
+  virtual hardware_interface::hardware_interface_ret_t write()
+  {
+    return hardware_interface::HW_RET_ERROR;
+  }
 };
 
 }  // namespace gazebo_ros2_control