Function fitsio_sys_bindgen::ffiter

pub unsafe extern "C" fn ffiter(
    ncols: c_int, 
    data: *mut iteratorCol, 
    offset: c_long, 
    nPerLoop: c_long, 
    workFn: Option<unsafe extern "C" fn(totaln: c_long, offset: c_long, firstn: c_long, nvalues: c_long, narrays: c_int, data: *mut iteratorCol, userPointer: *mut c_void) -> c_int>, 
    userPointer: *mut c_void, 
    status: *mut c_int
) -> c_int