int PMPI_Unpack(void* inbuf, int incount, int* position, void* outbuf, int outcount, MPI_Datatype type, MPI_Comm comm) {
if(incount<0 || outcount < 0 || inbuf==nullptr || outbuf==nullptr)
return MPI_ERR_ARG;
int PMPI_Unpack(void* inbuf, int incount, int* position, void* outbuf, int outcount, MPI_Datatype type, MPI_Comm comm) {
if(incount<0 || outcount < 0 || inbuf==nullptr || outbuf==nullptr)
return MPI_ERR_ARG;