Add throwing parameter name if parameter is not set (#833)

* added throwing parameter name if parameter is not set Signed-off-by: Alex <cvbn127@gmail.com> Signed-off-by: ivanpauno <ivanpauno@ekumenlabs.com>
ros2 · Sep 10, 2019 · 64c0f86 · 64c0f86
1 parent 925460d
commit 64c0f86
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/rclcpp/include/rclcpp/parameter_client.hpp b/rclcpp/include/rclcpp/parameter_client.hpp
@@ -271,7 +271,11 @@ class SyncParametersClient
   {
     return get_parameter_impl(
       parameter_name,
-      std::function<T()>([]() -> T {throw std::runtime_error("Parameter not set");}));
+      std::function<T()>([&parameter_name]() -> T
+      {
+        throw std::runtime_error("Parameter '" + parameter_name + "' is not set");
+      })
+    );
   }
 
   RCLCPP_PUBLIC