const char Traits<double>::ArrayTypeName[]="DataArrayDouble";
+const char Traits<double>::FieldTypeName[]="MEDCouplingFieldDouble";
+
+const char Traits<double>::NPYStr[]="FLOAT64";
+
+const char Traits<float>::ArrayTypeName[]="DataArrayFloat";
+
+const char Traits<float>::FieldTypeName[]="MEDCouplingFieldFloat";
+
+const char Traits<float>::NPYStr[]="FLOAT32";
+
const char Traits<int>::ArrayTypeName[]="DataArrayInt";
+const char Traits<int>::FieldTypeName[]="MEDCouplingFieldInt";
+
const char Traits<char>::ArrayTypeName[]="DataArrayChar";
+
+const char Traits<Int64>::ArrayTypeName[]="DataArrayInt64";
+
+const char Traits<Int64>::FieldTypeName[]="MEDCouplingFieldInt64";
+
+const char Traits<Int64>::NPYStr[]="INT64";