this post was submitted on 11 Jul 2024
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Meme transcription [Kid drowning in pool]

In the background a person plays with a kid in the pool. The person is labeled “Companies updating their website”. The kid is labeled “The company logo”.

In the foreground a kid seems to be drowning. It is labeled “Useful information”.

In a second panel a skeleton sits at the bottom of the pool. It is labeled “The copyright year”

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[–] [email protected] 4 points 1 month ago (1 children)

The cool thing to do now is to write it in Rust, only using the standard library.

[–] [email protected] 2 points 1 month ago (2 children)

And I hate it. Nice concept, but I don't like neither, the language nor compiler.

[–] [email protected] 2 points 1 month ago (1 children)
[–] [email protected] 1 points 1 month ago (1 children)
  • The C compiler, when I parse a &(float) as (long) (it's actually an evil floating point hack to run Quake III on an X86_64 CPU emulated in Scratch running on Spotifys Car Thing) (This would never be possible in Rust)
[–] [email protected] 2 points 1 month ago* (last edited 1 month ago) (1 children)
[–] [email protected] 1 points 1 month ago (1 children)

Yes, but

  1. it's unsafe, therefore not really Rust I'd argue
  2. it doesn't look as good
float Q_rsqrt(float number) {
   long i;
   float x2, y;
   const float threehalfs = 1.5F;

   x2 = number * 0.5F;
   y = number;

   i = * ( long * ) &y;
   i = 0x5f3759df - ( i >> 1 );
   y = * ( float * ) &i;

   y = y * ( threehalfs - ( x2 * y * y ) );
   return y;
} 
[–] [email protected] 2 points 1 month ago (1 children)

Please don't tell me you, unironically, actually use the Carmack rsqrt function in the year of our Linux Desktop 2024.

Also if you like, you can write unsafe Rust in safe Rust instead.

[–] [email protected] 1 points 1 month ago

No. But somebody may be.

[–] [email protected] 2 points 1 month ago

It’s a very different vibe. I remember my first seg fault in C - kids days are missing out!