+#ifdef MEDCOUPLING_USE_64BIT_IDS
+ std::vector<int> indexVec( _graph->getIndex(), _graph->getIndexArray()->end() );
+ std::vector<int> valueVec( _graph->getValues(), _graph->getValuesArray()->end() );
+ int * xadj=indexVec.data();
+ int * adjncy=valueVec.data();
+#else