index = waitany(incount, (MPI_Request*)requests, pstat);
if(index==MPI_UNDEFINED) return MPI_UNDEFINED;
if(status != MPI_STATUSES_IGNORE) {
index = waitany(incount, (MPI_Request*)requests, pstat);
if(index==MPI_UNDEFINED) return MPI_UNDEFINED;
if(status != MPI_STATUSES_IGNORE) {