Avoid an object copy in parameter_value.cpp. (#1538)

Signed-off-by: Chris Lalancette <clalancette@openrobotics.org>
ros2 · Feb 2, 2021 · 9bf0f83 · 9bf0f83
1 parent 1c92e6d
commit 9bf0f83
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/rclcpp/src/rclcpp/parameter_value.cpp b/rclcpp/src/rclcpp/parameter_value.cpp
@@ -67,7 +67,7 @@ array_to_string(
   type_array << "[";
   type_array.setf(format_flags, std::ios_base::basefield | std::ios::boolalpha);
   type_array << std::showbase;
-  for (const ValType value : array) {
+  for (const ValType & value : array) {
     if (!first_item) {
       type_array << ", ";
     } else {