Move Gripper::operator<< into namespace hpp::model.

include/hpp/model/gripper.hh

@@ -172,9 +172,8 @@ namespace hpp {
       /// Weak pointer to itself
       GripperWkPtr_t weakPtr_;
     }; // class Gripper
+    std::ostream& operator<< (std::ostream& os, const Gripper& gripper);
   } // namespace model
 } // namespace hpp
-std::ostream& operator<< (std::ostream& os,
-			  const hpp::model::Gripper& gripper);
 
 #endif // HPP_MODEL_GRIPPER_HH

src/gripper.cc

@@ -52,11 +52,10 @@ namespace hpp {
         return os;
       }
 
-
-  } // namespace model
-} // namespace hpp
-std::ostream& operator<< (std::ostream& os,
-			  const hpp::model::Gripper& gripper)
+    std::ostream& operator<< (std::ostream& os, const Gripper& gripper)
 {
   return gripper.print (os);
 }
+
+  } // namespace model
+} // namespace hpp