this post was submitted on 11 Jul 2024
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Programmer Humor

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Companies updating their websites (sopuli.xyz)
submitted 2 months ago by bleistift2@sopuli.xyz to c/programmer_humor@programming.dev
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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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[–] SatouKazuma@programming.dev 2 points 2 months ago (1 children)

It's okay to be wrong

[–] 30p87@feddit.de 1 points 2 months 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)
[–] OmnipotentEntity@beehaw.org 2 points 2 months ago* (last edited 2 months ago) (1 children)

std::mem::transmute

[–] 30p87@feddit.de 1 points 2 months 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;
}
[–] OmnipotentEntity@beehaw.org 2 points 2 months 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.

[–] 30p87@feddit.de 1 points 2 months ago

No. But somebody may be.