Hacker News: oflebbe

New comment by oflebbe in "More precise elevation data for GraphHopper routing engine"

oflebbe — Thu, 26 Mar 2026 11:40:42 +0000

I am really looking forward for using better elevation data. So important for bike planning.

New comment by oflebbe in "The three pillars of JavaScript bloat"

oflebbe — Sun, 22 Mar 2026 07:45:09 +0000

Websites built with tons of polyfills are likely not run on these devices anyway, since they will run out of RAM before, let alone after they will only load after sone minutes because of CPU limitations on top of not being loaded because their x509 certs are outdated as well as the bandwith they support is not suitable to load MB sited pages

New comment by oflebbe in "The Cost of a Closure in C: The Rest"

oflebbe — Sat, 03 Jan 2026 18:13:52 +0000

Actually the author is building onto my suggestion https://github.com/soasis/idk/pull/17/files which I created several years ago, but adapted a bit too fast while submitting. And yes it looks very similar to GNU nested functions, since I started tinkering with these first.

I am really not sure if all these observations mentioned in the article are 100% correct, though.

First : Code seems to be compiled with clang. On Linux with gcc the native function one is way faster than the clang one.

Second: The author does run the code on ARM64/MacOS .

At least on my ryzen CPU on Linux with gcc the "normal C code" is way faster than anything else. Not that we do not need to thing about "closure" type functionality, but one should be careful to extrapolate implementations from one compiler on one platform to the rest of the pack.

Regarding N3654 I am not sure how to benchmark it here, since C could potentially use __builtin_call_with_static_chain , but I am not sure how to write the function to use the chain for accessing the variables.

I tried to estimate N3654 it by using "tinygo" which is AFAIK using the usual Calling ABI, but it was a factor of two slower than clang. Even "go" with its very specific ABI is still much slower. I discovered this isn't representative since runtime calling costs had been totally shadowed by costs of allocations.

Even the rust example I am usually using http://www.reddit.com/r/rust/comments/2t80mw/the_man_or_boy_... is much slower than anything else, presumably because of the "Cell" needed

TLDR: This micro benchmark might be misleading

New comment by oflebbe in "Ask HN: Hearing aid wearers, what's hot?"

oflebbe — Mon, 24 Nov 2025 14:35:28 +0000

I had the chance to test Moment while my Widex Evoke 440 had been in repair. They are indeed a lot better as the Evoke, sounding wise, while having only mild hearing loss. But they are still only MFI (can only connect to an iphone) and since I am migrating away from Apples ecosystem this will be a blocker.

New comment by oflebbe in "Answering questions about Android developer verification"

oflebbe — Sat, 04 Oct 2025 07:36:35 +0000

You can sideload apps in ios too, but you may not run it.

New comment by oflebbe in "Arenas in Rust"

oflebbe — Sat, 04 Oct 2025 06:20:39 +0000

I think I will love FORTRAN again

New comment by oflebbe in "FyneDesk: A full desktop environment for Linux written in Go"

oflebbe — Fri, 03 Oct 2025 17:35:09 +0000

I played with fyne some months ago. Binaries are gigantic and what does drive me crazy it is consuming cpu all the time even if it should stay idle

New comment by oflebbe in "I write type-safe generic data structures in C"

oflebbe — Mon, 30 Jun 2025 19:01:04 +0000

OpenMP to the rescue

New comment by oflebbe in "Falsehoods programmers believe about aviation"

oflebbe — Sat, 07 Jun 2025 07:05:24 +0000

I know about systems who had two types of serial numbers which ought to be the same, but weren‘t because they had been programmed at different eol stages, when daylight savings time kicked in. One of the system run in utc the other in local time. Date was part of the serial.

New comment by oflebbe in "Microsoft Teams will soon block screen capture during meetings"

oflebbe — Sun, 11 May 2025 12:44:00 +0000

No Teams meeting with video on Linux any more.

New comment by oflebbe in "Migrating away from Rust"

oflebbe — Tue, 29 Apr 2025 14:17:39 +0000

this!

New comment by oflebbe in "Deciphering C++ compiler errors: Nonsensical errors from a function declaration"

oflebbe — Thu, 12 Dec 2024 07:11:49 +0000

Wait what? This is an blogpost from Chen? I did remember reading better quality content before. This is the usual nightmare dealing with larger C++ codebase.

New comment by oflebbe in "Apple blocks PC emulator in iOS App Store and third-party app stores"

oflebbe — Mon, 10 Jun 2024 18:59:51 +0000

But you may not have access to API capabilities needed without an paid account.

New comment by oflebbe in "Go can only read 1GiB per Read call"

oflebbe — Sat, 10 Feb 2024 08:03:07 +0000

Only that there is no official mmap support in go, due to gc concerns, afaik

New comment by oflebbe in "Sudo for Windows"

oflebbe — Thu, 08 Feb 2024 19:19:31 +0000

Next: systemd for windows?

New comment by oflebbe in "The Open Source GraphHopper Routing Engine 8.0 Released"

oflebbe — Wed, 18 Oct 2023 16:11:26 +0000

At least previous versions of graphhopper do work on android. Had no chance to test graphhopper 8.0, though. Just use the maven artifacts.

For ios you can find projects to transpile to ObjC within the graphhopper project. YMMV

New comment by oflebbe in "A Japanese factory that designs clothes on a 40-year-old computer [video]"

oflebbe — Mon, 10 Jul 2023 18:41:57 +0000

Had an Sharp MZ-731 back in the days. I was able to exchange data with an Sharp MZ-80K from a friend by changing the baud rate of the recording. IIRC Sharp MZ 700 was faster, you could actually hear the different pitch on an audio cassette player.

New comment by oflebbe in "Paving the Road to Vulkan on Asahi Linux"

oflebbe — Mon, 20 Mar 2023 21:56:35 +0000

using an external monitor on an m1 pro at work.

New comment by oflebbe in "Python 3.11.0 final"

oflebbe — Tue, 25 Oct 2022 09:47:59 +0000

+1 for explaining kerr singularities

New comment by oflebbe in "Ask HN: What Happens to Older Designers?"

oflebbe — Sun, 23 Oct 2022 07:57:27 +0000

if your only tool is a hammer, every problem looks like a nail.