const ref ret.

VirtualRobot/GraspableSensorizedObject.cpp

@@ -124,7 +124,7 @@ VirtualRobot::GraspSetPtr GraspableSensorizedObject::getGraspSet(const std::stri
     return GraspSetPtr();
 }
 
-std::vector<GraspSetPtr> GraspableSensorizedObject::getAllGraspSets()
+const std::vector<GraspSetPtr>& GraspableSensorizedObject::getAllGraspSets()
 {
     return graspSets;
 }

VirtualRobot/GraspableSensorizedObject.h

@@ -75,7 +75,7 @@ public:
     /*!
         Get grasp set vector
     */
-    std::vector<GraspSetPtr> getAllGraspSets();
+    const std::vector<GraspSetPtr>& getAllGraspSets();
 
     virtual SensorPtr getSensor(const std::string& name) const;
     virtual bool hasSensor(const std::string& name) const;