Hacker News: leni536

New comment by leni536 in "LG monitors silently install software through Windows Update without consent"

leni536 — Sat, 18 Jul 2026 11:45:10 +0000

This is probably Windows pulling LG software through Windows Update bases in EDID. Linux won't ever do this BS.

New comment by leni536 in "Solar rail could become common in Europe after successful trial in Switzerland"

leni536 — Sun, 05 Jul 2026 18:21:27 +0000

And all the train depots and train stations are already covered in solar panels, I presume.

New comment by leni536 in "Pi square is nearly 10"

leni536 — Sun, 05 Jul 2026 12:43:02 +0000

This first became apparent to me when I got a slide rule. Pi is often marked on the various scales and an x^2 scale is often nearby the x scale.

New comment by leni536 in "Giant trees have no trouble pumping water to top branches: new research"

leni536 — Sat, 04 Jul 2026 11:41:24 +0000

Capillary action is subject to the same limits as suction at the top. Capillary action can't increase the water pressure at the bottom of the tree.

If you put a straight thin capillary tube upright in water so it sucks up water from the bottom, no matter how thin, it can't draw water up above ~10m of water level.

New comment by leni536 in "Giant trees have no trouble pumping water to top branches: new research"

leni536 — Fri, 03 Jul 2026 23:22:42 +0000

What would you call it?

New comment by leni536 in "Improvements to Std:Format in C++26"

leni536 — Tue, 23 Jun 2026 12:08:20 +0000

I am working on it. Floating-point IO is rather heavyweight, so the usual approach of naively slapping constexpr on all the things and putting them in headers can have some observable negative consequences on resource usage during compilation even if you don't use the new constexpr functionality.

To the best of my knowledge fmtlib does implement constexpr formatting for float and double, but not long double.

New comment by leni536 in "Memory crisis is getting so bad that even retro RAM prices are going to the Moon"

leni536 — Mon, 22 Jun 2026 21:18:24 +0000

It trickles down.

New comment by leni536 in "Memory Safe Inline Assembly"

leni536 — Mon, 22 Jun 2026 16:47:33 +0000

One reason to use inline assembly is to use instructions that are basically unknown to the compiler, in which case it can't really tell what is being accessed/modified.

New comment by leni536 in "The Wholesale Plagiarism of Obscure Sorrows"

leni536 — Sat, 20 Jun 2026 20:51:54 +0000

> Google and Apple are useless for dmca unless you have a court order.

They deserve to also be sued too for the infringement. I don't think safe-harbor applies if they don't act on a valid notice.

New comment by leni536 in "Volkswagen started blocking GrapheneOS users"

leni536 — Wed, 17 Jun 2026 22:56:43 +0000

> There's no way to verify the integrity of the system, and any malicious app can just grab your banking credentials or enable criminals to unlock and drive away with your car.

I don't see how the second half of the sentence follows from the first half.

New comment by leni536 in "Ported my C game to WASM, here's every bug that I hit"

leni536 — Tue, 16 Jun 2026 19:05:22 +0000

GP probably meant "POD for the purpose of layout" in the Itanium ABI. It's not the same as standard layout, and POD is not a term in recent C++ standards.

New comment by leni536 in "What every coder should know about gamma (2016)"

leni536 — Tue, 16 Jun 2026 11:36:30 +0000

Linear light (if that really is a term of art).

New comment by leni536 in "What every coder should know about Gamma Correction"

leni536 — Mon, 15 Jun 2026 23:41:00 +0000

Depends. Many times a linear colorspace is exactly what you want.

New comment by leni536 in "Ported my C game to WASM, here's every bug that I hit"

leni536 — Mon, 15 Jun 2026 13:36:31 +0000

Specified by whom? Not the C standard for sure. It is indeed soecified by individual ABIs, and ABIs don't tend to do anything too weird, but that's another question.

New comment by leni536 in "Ryanair dark UX patterns summer 2026 refresher"

leni536 — Fri, 12 Jun 2026 13:26:00 +0000

And a last, most sneaky one: At checkout if you pay with credit/debit card don't use Ryanair's "guaranteed exhange rate" if the cost of the flight is not in your card's currency (ticket by default, at least two clicks to find and untick it). That's ~6% gap from mid-market exhange rate, the worst cards do better than that.

New comment by leni536 in "Pokémon Go Scans Trained the Navigation Tech for Military Drones"

leni536 — Thu, 11 Jun 2026 08:29:50 +0000

Pokémon being used for war efforts is prime South Park material, too bad they already did that.

New comment by leni536 in "Are you expected to run five Python type-checkers now?"

leni536 — Mon, 08 Jun 2026 20:56:18 +0000

This is what the typing spec says about type narrowing[1]:

"Type checkers should narrow the types of expressions in certain contexts. This behavior is currently largely unspecified."

Have fun.

[1] https://typing.python.org/en/latest/spec/narrowing.html#type...

New comment by leni536 in "Conventional Commits encourages focus on the wrong things"

leni536 — Fri, 05 Jun 2026 21:35:25 +0000

It's probably kinda helpful in git blame.

New comment by leni536 in "Should you normalize RGB values by 255 or 256?"

leni536 — Mon, 01 Jun 2026 20:34:14 +0000

Basically never for 8-bit color channels.

New comment by leni536 in "EU fines Temu €200M for allowing sale of illegal products"

leni536 — Thu, 28 May 2026 15:21:40 +0000

There is no such thing as "Chinese Export".

https://cemarkingassociation.co.uk/latest-news/ce-marking-an...