Function leptonica_sys::numaDifferentiateInterval

pub unsafe extern "C" fn numaDifferentiateInterval(
    nax: *mut NUMA,
    nay: *mut NUMA,
    x0: l_float32,
    x1: l_float32,
    npts: l_int32,
    pnadx: *mut *mut NUMA,
    pnady: *mut *mut NUMA
) -> l_ok