pub unsafe extern "C" fn gcry_cipher_setctr(
handle: gcry_cipher_hd_t,
ctr: *const c_void,
ctrlen: size_t,
) -> gcry_error_tpub unsafe extern "C" fn gcry_cipher_setctr(
handle: gcry_cipher_hd_t,
ctr: *const c_void,
ctrlen: size_t,
) -> gcry_error_t