/*D
   MPIX_Comm_get_stream - Get the stream object that is attached to the communicator

Synopsis:
.vb
int MPIX_Comm_get_stream(MPI_Comm comm, int idx, MPIX_Stream *stream)
.ve

Input Parameters:
+ comm - communicator (handle)
- idx - idx (integer)

Output Parameters:
. stream - stream object (handle)

.N ThreadSafe

.N Fortran

.N Errors
.N MPI_SUCCESS
.N MPI_ERR_ARG
.N MPI_ERR_COMM
.N MPI_ERR_OTHER

D*/

