/*D
   MPIX_Type_iov_len - Return the number of contiguous segments within max_iov_bytes

Synopsis:
.vb
int MPIX_Type_iov_len(MPI_Datatype datatype, MPI_Count max_iov_bytes,
                      MPI_Count *iov_len, MPI_Count *actual_iov_bytes)
.ve

Input Parameters:
+ datatype - datatype (handle)
- max_iov_bytes - maximum number bytes in the iovs (integer)

Output Parameters:
+ iov_len - number of iovs within max_iov_bytes (integer)
- actual_iov_bytes - actual number of bytes in the iovs (integer)

.N ThreadSafe

.N Fortran

.N Errors
.N MPI_SUCCESS
.N MPI_ERR_ARG
.N MPI_ERR_TYPE
.N MPI_ERR_OTHER

D*/

