Function fitsio_sys::ffiter

pub unsafe extern fn ffiter(ncols: c_int, data: *mut iteratorCol, offset: c_long, nPerLoop: c_long, workFn: Option<unsafe extern 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