Hacker News: cv5005

New comment by cv5005 in "Anthropic builds wet lab for AI-driven drug discovery"

cv5005 — Fri, 18 Sep 2026 18:34:39 +0000

Umbrella vs Skynet timeline race, yay!

New comment by cv5005 in "Jemalloc 5.4.0"

cv5005 — Fri, 18 Sep 2026 09:58:06 +0000

>where hundreds or thousands of parallel threads continuously create and destroy short-lived small and medium objects.

Should one even want a global, general purpose heap allocator for that? Seems like a crazy idea to even consider.

New comment by cv5005 in "On the Navier–Stokes Millennium Prize Problem"

cv5005 — Tue, 08 Sep 2026 18:55:54 +0000

I was thinking something along the lines of making a mistake when inputing the initial statement, like you wanted to prove that '2 is even' but what you actually stated was that '3 is odd'.

Of course in this simple example it's obvious, but my assumption was that these machine generated lean proofs are millions of lines of code and who knows what they actually say..

New comment by cv5005 in "On the Navier–Stokes Millennium Prize Problem"

cv5005 — Tue, 08 Sep 2026 17:46:05 +0000

Maybe a naive question, but how does one know that a particular lean proof is actually a proof of what one thinks? Like, ok the logic checks out and it proves something, but there's still the problem of does this logical result actually prove the initial question that was asked?

New comment by cv5005 in "The CEO of Mullvad is the main financer of the Swedish Örebro party"

cv5005 — Mon, 29 Jun 2026 19:19:17 +0000

Most people in the world wants some form of ethnic cleansing - that's why you get 'ethnic quarters' in most large cities, people generally like to be around their own 'kind'.

New comment by cv5005 in "AI learns the “dark art” of RFIC design"

cv5005 — Sun, 28 Jun 2026 07:13:55 +0000

Current LLMs don't pass the turing test.

Remember, the interrogator is allowed to be hostile, so they would obviously employ all known prompt injections and typical LLM 'gotchas' to figure out who the AI is.

New comment by cv5005 in "sp.h: Fixing C by giving it a high quality, ultra portable standard library"

cv5005 — Sun, 24 May 2026 00:47:17 +0000

>There's no namespacing feature provided so you're left with the convention of picking a few letters as a prefix and hoping it doesn't overlap and yet is succinct enough to not be annoying.

I've been using C on a daily basis for 30+ years and name collisions has just never been a problem.

Granted, it might be due to lack of a package manager so micro dependencies ala import is_even is not a thing here, but still, in practice, no name collions occurs.

New comment by cv5005 in "Project Hail Mary – Stellar Navigation Chart"

cv5005 — Thu, 21 May 2026 18:18:06 +0000

Chinese film having 100% chinese cast = good.

American film having a single white male lead = not good.

New comment by cv5005 in "Cost of enum-to-string: C++26 reflection vs. the old ways"

cv5005 — Wed, 13 May 2026 18:41:37 +0000

Never quite understood why people are so obsessed with meta programming capabilities in a language, be it templates, comptime, macros, whatever.

I program mostly in C, if I need 'meta' programming I just write another C program that processes C source code (I've written a simple C parser), then in my build script I build in two stages, build meta program, run it, build rest of program.

Simple, effective, debuggable (the meta program is just normal C), infinite capabilities - can nest this to arbitritary depths, need meta-meta programming? Make a program that generates a meta program.

New comment by cv5005 in "Making your own programming language is easier than you think (but also harder)"

cv5005 — Sun, 10 May 2026 12:55:52 +0000

>One need to write it manually each time in each function where some cleanup is needed.

You can structure your code to not need cleanup in every function.

The biggest problem with destructors is, how do you handle errors? close() can fail you know?

New comment by cv5005 in "How do I deal with memory leaks? (2022)"

cv5005 — Fri, 08 May 2026 18:27:25 +0000

One reason is that c++ still hasn't gotten 'trivial relocatability' right - i.e being able to memcpy/memmove and not have to call constructors/destructors when growing your vector class.

New comment by cv5005 in "Richard Dawkins and The Claude Delusion: The great skeptic gets taken in"

cv5005 — Sun, 03 May 2026 07:42:19 +0000

Yeah I dont think a single current LLM would fool me in a turing test - I would obiously use all kinds of prompt injection techniques, ask about 'dangerous' or controversial topics, ask about random niche facts in varied fields, etc.

New comment by cv5005 in "Lib0xc: A set of C standard library-adjacent APIs for safer systems programming"

cv5005 — Sat, 02 May 2026 13:53:46 +0000

std span is not bounds checked.

New comment by cv5005 in "Big-Endian Testing with QEMU"

cv5005 — Sat, 04 Apr 2026 07:41:37 +0000

Having different types seems wrong to me because endianess issues disappears after serialization, so it would make more sense to slap an annotation on the data field so just the serializer knows how to load/store it.

New comment by cv5005 in "Windows native app development is a mess"

cv5005 — Sun, 22 Mar 2026 13:18:45 +0000

This was an MFC project, so your old standard win32 common controls that looks the same since 98 or so.

New comment by cv5005 in "Windows native app development is a mess"

cv5005 — Sun, 22 Mar 2026 13:16:39 +0000

Well it's still a 32 bit program so I guess that helps. Would probably require some porting to make it 64 bit native, but as long as you use the WPARAM, INT_PTR typed and what not correctly it 'should just work'.

New comment by cv5005 in "Windows native app development is a mess"

cv5005 — Sun, 22 Mar 2026 13:05:08 +0000

I'm an embedded programmer who occassionally needs to write various windows programs to interface with embedded devices (usually via serial port or usb), and I find it a breeze to write native gui programs in pure win32 and c++.

Recently had to add a new feature to and old program that was last updated in the XP era and two things to note:

1. The program did not need to be updated to run on Vista, 7, 10 and 11, shit just kept working throughout the years.

2. I loaded the project into Visual Studio 2022, it converted from VC6 and compiled without problems, added the feature, shipped a new .exe to the customer, and it just worked.

What other platform has that backwards and forwards compatibility success story?

New comment by cv5005 in "Methods in Languages for Systems Programming (2023)"

cv5005 — Mon, 16 Mar 2026 20:09:19 +0000

Not a fan of methods.

Why should the first argument be so special? And how do you decide which struct should get method if you have a function that operates on two different types?

New comment by cv5005 in "The Lobster Programming Language"

cv5005 — Sun, 08 Mar 2026 13:32:20 +0000

Eventually it wont need to write any code at all. The end goal for AI is "The Final Software" - no more software needs to be written, you just tell the AI what you actually want done and it does it, no need for it to generate a program.

New comment by cv5005 in "Best performance of a C++ singleton"

cv5005 — Sun, 08 Mar 2026 13:21:27 +0000

>Then there's the static initialization order fiasco

One of the reasons I hate constructors and destructors.

Explicit init()/deinit() functions are much better.