protoboard: return const refs from enum bimap

fawkesrobotics · Dec 4, 2019 · dda6569 · dda6569
1 parent e56ea3d
commit dda6569
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/src/libs/protoboard/protoboard_types.h b/src/libs/protoboard/protoboard_types.h
@@ -71,7 +71,7 @@ class enum_map
 	 * @param v a ProtoBuf enum value
 	 * @return the mapped blackboard interface enum value
 	 */
-	constexpr bbEnumT
+	constexpr const bbEnumT &
 	of(pbEnumT v) const
 	{
 		return map.left.at(v);
@@ -81,7 +81,7 @@ class enum_map
 	 * @param v a blackboard interface enum value
 	 * @return the mapped ProtoBuf enum value
 	 */
-	constexpr pbEnumT
+	constexpr const pbEnumT &
 	of(bbEnumT v) const
 	{
 		return map.right.at(v);