fix non-member min and max functions

src/OpenMesh/Core/Geometry/Vector11T.hh

@@ -767,15 +767,15 @@ VectorT<Scalar, DIM>& minimize(VectorT<Scalar, DIM>& _v1, VectorT<Scalar, DIM>&
 /// \relates OpenMesh::VectorT
 /// non-member max
 template<typename Scalar, int DIM>
-VectorT<Scalar, DIM> max(VectorT<Scalar, DIM>& _v1, VectorT<Scalar, DIM>& _v2) {
-    return VectorT<Scalar, DIM>(_v1).maximize(_v2);
+VectorT<Scalar, DIM> max(const VectorT<Scalar, DIM>& _v1, const VectorT<Scalar, DIM>& _v2) {
+    return _v1.max(_v2);
 }
 
 /// \relates OpenMesh::VectorT
 /// non-member min
 template<typename Scalar, int DIM>
-VectorT<Scalar, DIM> min(VectorT<Scalar, DIM>& _v1, VectorT<Scalar, DIM>& _v2) {
-    return VectorT<Scalar, DIM>(_v1).minimize(_v2);
+VectorT<Scalar, DIM> min(const VectorT<Scalar, DIM>& _v1, const VectorT<Scalar, DIM>& _v2) {
+  return _v1.min(_v2);
 }