pub unsafe extern "C" fn gcry_cipher_open(
handle: *mut gcry_cipher_hd_t,
algo: c_int,
mode: c_int,
flags: c_uint,
) -> gcry_error_tpub unsafe extern "C" fn gcry_cipher_open(
handle: *mut gcry_cipher_hd_t,
algo: c_int,
mode: c_int,
flags: c_uint,
) -> gcry_error_t