/*D
   MPI_Type_create_hindexed_block - Create an hindexed datatype with constant-sized blocks

Synopsis:
.vb
int MPI_Type_create_hindexed_block(int count, int blocklength,
                                   const MPI_Aint array_of_displacements[],
                                   MPI_Datatype oldtype, MPI_Datatype *newtype)
.ve
.vb
int MPI_Type_create_hindexed_block_c(MPI_Count count, MPI_Count blocklength,
                                     const MPI_Count array_of_displacements[],
                                     MPI_Datatype oldtype,
                                     MPI_Datatype *newtype)
.ve

Input Parameters:
+ count - length of array of displacements (non-negative integer)
. blocklength - size of block (non-negative integer)
. array_of_displacements - byte displacement of each block (integer)
- oldtype - old datatype (handle)

Output Parameters:
. newtype - new datatype (handle)

.N ThreadSafe

.N Fortran

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

D*/

