sha3_256_final
ATTRIBUTE_WARN_UNUSED_RET int sha3_256_final(sha3_256_context *ctx, u8 output[SHA3_256_DIGEST_SIZE]);
return sha3_256_final((sha3_256_context*)hctx, output);
ret = sha3_256_final(&ctx, output); EG(ret, err);
ret = sha3_256_final(&ctx, output);