/*D
   MPI_Bcast - Broadcasts a message from the process with rank "root" to all other processes of the communicator

Synopsis:
.vb
int MPI_Bcast(void *buffer, int count, MPI_Datatype datatype, int root,
              MPI_Comm comm)
.ve
.vb
int MPI_Bcast_c(void *buffer, MPI_Count count, MPI_Datatype datatype, int root,
                MPI_Comm comm)
.ve

Input Parameters:
+ count - number of entries in buffer (non-negative integer)
. datatype - data type of buffer (handle)
. root - rank of broadcast root (integer)
- comm - communicator (handle)

Input/Output Parameters:
. buffer - starting address of buffer (choice)

.N ThreadSafe

.N Fortran

.N Errors
.N MPI_SUCCESS
.N MPI_ERR_BUFFER
.N MPI_ERR_COMM
.N MPI_ERR_COUNT
.N MPI_ERR_TYPE
.N MPI_ERR_OTHER

D*/

