This function uses the following arguments for output:
c - S3L internal array handle for the parallel array that contains the results of the autocorrelation. Its length must be at least 2*ma-1 (1D case) or 2*ma-1 x 2*na-1 (2D case).
ier (Fortran only) - When called from a Fortran program, this function returns error status in ier.