CHECK_COMM(1)
CHECK_NULL(1, MPI_ERR_TOPOLOGY, comm->topo())
CHECK_NULL(2, MPI_ERR_ARG, ndims)
- MPIR_Cart_Topology topo = static_cast<MPIR_Cart_Topology>(comm->topo().get());
+ const simgrid::smpi::Topo_Cart* topo = static_cast<MPIR_Cart_Topology>(comm->topo().get());
if (topo==nullptr) {
return MPI_ERR_ARG;
}