Class MPI.Pointer

Description

A pointer like class. Because MPI.Comm->Recv() et al do not return "results" but take references/pointers to the target storage, you need to pass a Pointer to MPI.Comm()->recv() in order to receive the string.

Example

int main() {
	string s;
	MPI.Pointer p = MPI.Pointer();
	MPI.Init();
	if (MPI.world->rank())
		MPI.world->Send(ctime(time(1)), 0);
	else
		for (int i = 1; i < MPI.world->size; i++) {
			MPI.world->Recv(p, i);
			write("Rank %03d says now is %s.\n", p());
		}
	MPI.Finalize();
	return 0;
}

Method create

MPI.Pointer MPI.Pointer()
MPI.Pointer MPI.Pointer(mixed m)

Description

If m is given, point to m, else point to UNDEFINED.