}
MPI_Request* requests = xbt_new(MPI_Request, rankmap.size());
int reqs = 0;
- for (const auto& rank : rankmap) {
+ for (auto const& rank : rankmap) {
if (rank.second != 0) {
group_snd[reqs]=new Group(group_out);
requests[reqs] = Request::isend(&(group_snd[reqs]), 1, MPI_PTR, rank.second, system_tag, this);