[Boost-users] MPI rank() & size() type

Subject: [Boost-users] MPI rank() & size() type
From: Kraus Philipp (philipp.kraus_at_[hidden])
Date: 2011-05-17 15:54:12

Hello,

I use Boost MPI for some project, but I have a question of the return  
datatype of the communication rank() and size(). size() returns a  
unsigned datatype, but rank() a signed, so if I compare rank() with  
size() I will get a warning. Is there a reason for using different  
return types?

Thanks

Phil