_sha3_finalize
ATTRIBUTE_WARN_UNUSED_RET int _sha3_finalize(sha3_context *ctx, u8 *output);
ret = _sha3_finalize((sha3_context *)ctx, output); EG(ret, err);
ret = _sha3_finalize((sha3_context *)ctx, output); EG(ret, err);
ret = _sha3_finalize((sha3_context *)ctx, output); EG(ret, err);
ret = _sha3_finalize((sha3_context *)ctx, output); EG(ret, err);