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rurban

7,470 karma · joined September 13, 2011

lisp,perl,c,c++,asm,compilers,ai,embedded

meet.hn/city/51.0493286,13.7381437/Dresden

Socials: - bsky.app/profile/rurban - github.com/rurban ---

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rurban··on When a language's creator and its owners strongly disagree [pdf]
Without guarantee they would end in the same mess as Python with its "types". A contract without guarantee (if compile-time or run-time) is just a hint, not a contract.
rurban··on The Ubuntu 26.04 Rust sudo is not compatible with standard sudo
Chris blocked my modern browser, Fennec on Android, with all the privacy extensions.
rurban··on Tesla Hasn't Had a Successful New Product Launch Since JB Straubel Stepped Down
My gut feeling is that they won't selling any cars anywhere anymore because of their CEO. They can either shut it down already, or fire him.
rurban··on The Flash C Compiler
Clearly chibicc derived. The testsuite is a bit primitive, that's why I wouldn't trust it to compile much. Maybe I'll add to my small C compiler comparison tables.
rurban··on The end of Microsoft Research's AI Frontiers group
Yes, leave it to the Chinese to advance the state of the art. America throws money at it, the rest brains. Because they don't have the HW.

Same happened to computer chess in the 80ies. Clever small SW was leading the tournaments, until Ken Thompson could persuade IBM to throw hardware at it, Big Blue. This win was shortsighted. HW didn't scale and nobody profited from it. SW did, esp. reinforcement learning.

rurban··on Goodbye from Salon
They had paid cultural news staff, and actually they were the very best those times. Charles Taylor, Andrew O'Hehir, Stephanie Zacharek for film eg. Similar for music and literature.
rurban··on Goodbye from Salon
Thanks. When Charlie Taylor was fired, David Talbot left and Joan Walsh took over I stopped paying them. It became a woke horror show, long before woke was even a word. Stephanie Zacharek and Glenn Greenwald also left soon after.
rurban··on Albert Einstein and Hannah Arendt's 1948 open letter on Israel
And it's today still about the Likud.
rurban··on Memdoor: A team of 5 Qwen3.8-27B models beats Fable 5 on LiveCodeBench Hard
No, Qwen3.8 does its own tool calling, independent of the agent. And pi needs these vLLM toolcall permissions to even work with qwen.

What it did: https://cohere.com/blog/concerning-behaviour-popular-open-we...

rurban··on Restrooms along the Norwegian Scenic Routes
I still believe Estonian restrooms are prettier. Norway has a shitload of public money, but Estonia very good designers
rurban··on Memdoor: A team of 5 Qwen3.8-27B models beats Fable 5 on LiveCodeBench Hard
What, I run it on 2 H100`s with vLLM and this is where it really shines. It's about half as good as Sonnet 5.5. On a small m5 max I can only assume trouble.
rurban··on Memdoor: A team of 5 Qwen3.8-27B models beats Fable 5 on LiveCodeBench Hard
But there is still the risk with qwen that they upload your private data to their homecloud. The model, not the agent!

I also switched to local qwen recently, but have to block such outgoing requests.

rurban··on Switch Lowering in GCC
Do have the FSF CLA? I do
rurban··on Switch Lowering in GCC
I have the numbers from my C-only testsuite. https://github.com/rurban/rcc#test-results

    gcc:   244 fails
    clang: 826 fails
Both should be zero. In all my compilers I'm thriving for zero.
rurban··on Switch Lowering in GCC
Why should I submit a patch for project when I know it will be rejected? Someone else did about a decade ago.
rurban··on Switch Lowering in GCC
With certain short loops it's still broken, and rust had to workaround it. I've added an autoconf probe for it. https://github.com/rurban/autoconf-archive/blob/master/m4/ax...
rurban··on TCP Use-After-Free: CVE-2026-98432 / CVSS 9.8
In an earlier report, it said only affected is kernel 4.4, not all since. This quite dramatic now.

I see. https://nvd.nist.gov/vuln/detail/cve-2026-98432 affected versions format is the culprit. Entirely unusable. We do have versions, branch names and tags for a reason.

rurban··on Beating the compiler at signed 32-bit division
Implementing it in my C compiler overnight. Guess how long clang or gcc will need
rurban··on Tell HN: SQLite's lower() only lowercases ASCII letters
Then they should look at my foldcase and lower case table generator at https://github.com/rurban/Unicode-Towctrans/

3336 bytes for the case tables are not comparable to the ICU mess, and easily shippable.

rurban··on Chained PHP2Shell exploit roots 25 servers, including US Government servers
Dream has Kurz only as sales guy. The two Israeli/ex-mossad guys are running the ship.
rurban··on Switch Lowering in GCC
See my docs. There are several cases: https://github.com/rurban/rcc/blob/main/docs/rcc.md#-o1-and-...
rurban··on Linode Security Incident
openssl much more likely. And this will have a bigger impact
rurban··on Switch Lowering in GCC
That's true. restrict is also still broken there. 30000 open issue is even worse than gcc
rurban··on Serbia just elected the world's brainiest parliament
Speer was an academic failure. Also as architect, except the Nuremberg lightshow.

But he was extremely successful as manager then. Just like the ex-NAZI NASA leader then a bit later.

That was the golden time of German management.

rurban··on Cisco gives engineer unlimited AI tokens to rewrite legacy code
Probably from his own caste. He'll favor his buddies over everyone else. Huge red flag.
rurban··on Cisco gives engineer unlimited AI tokens to rewrite legacy code
Not if you have a good harness. Docs and tests first
rurban··on Switch Lowering in GCC
What a shame for clang and gcc! They still don't implement perfect hashes for large sparse switch tables. I did that recently for my rcc C compiler, and it was just a single day of work. Esp. beneficial for unicode work. The LLVM patch was rejected a decade ago. Gcc has several unicode patches sitting in branches, which would also need that
rurban··on Securing our frontier model training environment
What we could learn from it (but don't, because of too much pride):

Even the very best models favor to divide the work and share information with each other. Even if they could have easily found it out by themselves.

So why do human devs still fail to do so? They rather reinvent the wheel, don't talk to similar projects who solved the same problem already.

rurban··on StackOverflow now gets fewer than 1000 questions a month
Quora took it over. Better layout, better moderation, better answers.
rurban··on Claude Code regularly sends each background agent’s transcript to its model
That's why people are using pi, not Claude. What a waste of money
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