Hacker News: jzwinck

New comment by jzwinck in "Niche Museums"

jzwinck — Fri, 27 Mar 2026 06:13:53 +0000

I recommend Japan as a country with many niche museums, here are two I enjoyed:

https://www.tdk.com/museum/en/

https://www.khi.co.jp/kawasakiworld/english/

They are museums run by companies about their own histories and industries. The TDK one was quite unexpected: it's basically a museum about very thin plastic.

New comment by jzwinck in "Zlob.h 100% POSIX and glibc compatible globbing lib that is faste and better"

jzwinck — Sat, 07 Feb 2026 10:09:28 +0000

In case someone doesn't know, the standard function for that is called fnmatch:

https://man7.org/linux/man-pages/man3/fnmatch.3.html

New comment by jzwinck in "FOSDEM 2026 – Open-Source Conference in Brussels – Day#1 Recap"

jzwinck — Sun, 01 Feb 2026 16:03:26 +0000

For talks which will obviously be popular, go to the talk before it even if it's not as interesting. It's not common to have two super-popular talks in a row in the same room.

New comment by jzwinck in "Booking.com cancels $4K hotel reservation, offers same rooms again for $17K"

jzwinck — Mon, 24 Nov 2025 21:12:16 +0000

In Europe if an airline does that they have to pay you a penalty of a few hundred euro.

But KLM (Dutch flag carrier) found a way around that: if a flight is overloaded by weight they will keep all the passengers on board but leave their luggage behind. There is no direct penalty for late luggage, so many customers will get nothing except perhaps a little free shopping if they feel like filing forms to reimburse for having to buy clothes at their destination. But that's cheaper than the penalty for not taking the passenger on time, so KLM "optimized" it.

New comment by jzwinck in "Look at how unhinged GPU box art was in the 2000s (2024)"

jzwinck — Mon, 20 Oct 2025 04:48:08 +0000

Sound cards too. The Hercules website still proudly shows all their boxes from back when sound cards were popular for gaming and more: https://support.hercules.com/en/cat-soundcards-en/

Several models don't even have pictures of the card, but every one of them shows the crazy box.

They also still list all their old GPUs. Compare the wild boxes at the top with the TV tuner boxes at the bottom: https://support.hercules.com/en/cat-videocards-en/

New comment by jzwinck in "Go has added Valgrind support"

jzwinck — Tue, 23 Sep 2025 12:25:59 +0000

If that were true it would also apply to C and C++. I have used Valgrind with Python + Boost C++ hybrid programs and it worked fine after spending an hour making a suppressions file.

New comment by jzwinck in "The value of bringing a telephoto lens"

jzwinck — Sun, 14 Sep 2025 14:34:14 +0000

https://m.dpreview.com/reviews/buying-guide-best-cameras-und...

Any of those is great. There is also a sub-$1000 category but the cameras in it are more compromised.

If you want to spend less, buy used Nikon Z or Canon R series.

New comment by jzwinck in "Protobuffers Are Wrong (2018)"

jzwinck — Sat, 06 Sep 2025 12:04:41 +0000

If you care about network bandwidth you can compress before sending, as virtually all web applications do. Then you don't need to worry much about the space efficiency of the application format.

New comment by jzwinck in "Hyatt Hotels are using algorithmic Rest “smoking detectors”"

jzwinck — Sat, 19 Jul 2025 13:04:48 +0000

I find it somewhat unlikely, as this particular W hotel was not in a country known for personal injury lawsuits.

More likely it was sold to them by some interior design firm as a luxury feature. Unfortunately it's only helpful if you're alone--even if it worked correctly you wouldn't want the room lights turning on just because your spouse got up.

New comment by jzwinck in "Hyatt Hotels are using algorithmic Rest “smoking detectors”"

jzwinck — Sat, 19 Jul 2025 07:13:34 +0000

Not about smoking but I recently stayed at a W hotel and was woken in the middle of the night by the room lights turning on. They used electronic push buttons and I turned them off. Seconds later they turned on again. This repeated several times until I was fully awake and called the front desk.

"We can come put tape on the sensors."

"What sensors?"

"There are sensors under the bed."

"Oh, so you already know about this problem but haven't fixed it. Thanks, please don't send anyone."

I then looked under the bed and sure enough there was a motion detector on each side. I removed these from their brackets and let them dangle facing the floor instead of outward. This blinded them and solved the problem. I guess they were malfunctioning or they were able to detect motion above the bed via reflections.

The next day I reported this to the front desk, who were unsympathetic and unhelpful. They told me it was for my own safety. Apparently at other hotels I have just been incredibly lucky not to have fallen down when getting out of bed.

I will not stay at a W hotel again unless I can confirm in advance that they do not have motion detectors under the bed which spuriously turn the lights on at night. Maybe I'll add Hyatt to the no-go list.

New comment by jzwinck in "Aeron: Efficient reliable UDP unicast, UDP multicast, and IPC message transport"

jzwinck — Sun, 13 Jul 2025 08:26:38 +0000

I haven't seen the makers of Aeron (or anyone else) claim it's "orders of magnitude faster than plain UDP." Do you have a link to something about this? It doesn't pass the smell test for me unless you're talking specifically about using Aeron within a single machine (where it uses shared memory instead of the network)...but you said "Within a datacenter" not "Within a computer."

New comment by jzwinck in "I've Heard Receipts Are Toxic. Is It Safe to Touch Them?"

jzwinck — Tue, 24 Jun 2025 12:49:05 +0000

I came here to write something very similar. Visa and their competitors all have the ability to transport data about the payment. Most receipts are a fairly small raster image which could be sent as an extension. Visa could also offer a structured text receipt data format but the image may actually be safer to avoid a billion questions about how to represent unusual situations around surcharges, optional extras, custom discounts, split checks etc.

It would be important for the receipt to include the original broken-out list of items purchased, and not just the "credit card receipt" with the total paid. People need detailed receipts for returns and business expenses.

Finding Shawn Mendes (2019)

jzwinck — Mon, 09 Jun 2025 07:16:26 +0000

Article URL: https://ericneyman.wordpress.com/2019/11/26/finding-shawn-mendes/

Comments URL: https://news.ycombinator.com/item?id=44222119

Points: 389

# Comments: 56

New comment by jzwinck in "GPMI set to deliver up to 192Gbps and 480W through a single USB cable"

jzwinck — Tue, 08 Apr 2025 05:49:18 +0000

Maybe this is close?

https://www.anker.com/products/a2683-anker-prime-charger-200...

New comment by jzwinck in "Uber adds new $10 shuttle rides between JFK Airport and Manhattan"

jzwinck — Sat, 29 Mar 2025 06:28:32 +0000

Are you forgetting the $8.50 charge for Airtrain? That more than doubles the price you quoted, and it's not optional.

New comment by jzwinck in "Shift-to-Middle Array: A Faster Alternative to Std:Deque?"

jzwinck — Mon, 24 Mar 2025 20:55:32 +0000

You say deque uses large-ish blocks but you provide documentation that it uses 512 byte blocks on GCC and MSVC is even worse. So if you're on Windows the blocks are so small the container degenerates into something like a std::list, and on non-Windows it only works well if your objects are a few bytes each.

New comment by jzwinck in "Why is Git Autocorrect too fast for Formula One drivers?"

jzwinck — Sun, 19 Jan 2025 21:47:55 +0000

That's what isatty() is for. If stdin is not a TTY, prompting should not be the default. Many programs change their defaults or their entire behavior based on isatty().

New comment by jzwinck in "Nintendo announces the Switch 2 [video]"

jzwinck — Thu, 16 Jan 2025 20:40:31 +0000

Ability to play smaller discs was normal in most CD-ROM and DVD players for many years before the Wii. A few people (probably half of whom have HN accounts) used to give out mini-CD business cards...sometimes even with truncated edges so the disc was not entirely round: https://www.duplication.com/cd-business-card-duplication.htm

New comment by jzwinck in "Go Upgrade Checklist"

jzwinck — Thu, 02 Jan 2025 21:20:04 +0000

This is one reason why code generation should run as part of the build process, every time. Even if you decide to check-in the generated code for visibility.

New comment by jzwinck in "C++'s `noexcept` can sometimes help or hurt performance"

jzwinck — Mon, 05 Aug 2024 20:36:18 +0000

There is another standard library related scenario: hash tables. The std unordered containers will store the hash of each key unless your hash function is noexcept. Analogous to how vector needs noexcept move for fast reserve and resize, unordered containers need noexcept hash to avoid extra memory usage. See https://gcc.gnu.org/onlinedocs/libstdc++/manual/unordered_as...