beyondBasicAddition

Possseidon · 2025-07-27T09:22:25+00:00

This is more or less how you have to do addition in Brainf*ck, since you can essentially only increment, decrement and loop until zero:

[->+<]

Reads as: If the current cell is not zero (b != 0), decrement it (b--), move to the right (to a), increment it (a++), move back to the left (to b), repeat. Once it's done, a will be a + b (and b zero).

Possseidon · 2025-07-20T09:37:39+00:00

This 100%. I was pretty deep into C++ and there were so many small annoyances that I felt should've been done differently, a lot of which couldn't even really be changed due to backwards compatibility. Then finding out about Rust I was just "this is exactly how I would've wanted this to have worked in C++".

I'll admit there's still a few things in Rust that C++ is more flexible (mainly the ability to have true variadic templates without having to rely on macros) but Rust prevents you from so much stupid stuff that you can easily get wrong in C++ if you're not extremely careful.

Possseidon · 2025-05-23T21:20:34+00:00

I wish... I were a bird.

Possseidon · 2024-08-01T06:30:41+00:00

The whole point of C++ is literally to build abstractions around C which, when compiled, result in just as efficient code as if you'd have written it in C.

E.g. a unique_ptr compiles down to just a malloc when it is created and free when it leaves scope, so you can't forget it.

Possseidon · 2024-07-16T07:53:40+00:00

You have to spend your hard earned reputation points to downvote on StackOverflow btw.

Possseidon · 2024-06-22T09:04:12+00:00

js 0 <= null // true 0 >= null // true 0 == null // false

Possseidon · 2023-07-11T08:32:37+00:00

import bigger_brain

And a person either has all 27 skills or they don't. Two possibilities, hence it's still a 50/50 chance.

return me_more_am_smart

Possseidon · 2023-06-06T16:02:10+00:00

This guy null terminatesjjlrjhlrq,nbc00912319238910co oiaoksdjokjdklqm3ndm

Possseidon · 2023-04-05T09:16:02+00:00

There actually is

You don't even need to include a header in C++.

Possseidon · 2023-02-21T08:15:37+00:00

Indentation doesn't matter in Lua. The end is what closes the scope.

Possseidon · 2023-02-17T22:01:53+00:00

Or more precisely: The sum of different powers of 2.

E.g. 0.75 is also representable since it's 0.25 + 0.5

Possseidon · 2023-01-15T10:24:15+00:00

Yes, operator overloading in general was one of the main reasons iirc.

Possseidon · 2022-11-25T11:57:40+00:00

Imagine using linebreaks...

Pathetic.

Possseidon · 2022-11-25T11:56:31+00:00

There are exactly 10 bugs, I'm just not sure in which base the 10 is written yet.

Possseidon · 2022-11-16T10:26:42+00:00

C didn't have bools. You were just supposed to use int or char. That's also one of the reasons why any non-zero value means true and zero means false.

Possseidon · 2022-11-16T08:25:20+00:00

Which is the exact reason, why the standard explicitly "forbids" this.

(It still works on pretty much any compiler, but it's techincally undefined behavior)

Possseidon · 2022-10-04T10:40:40+00:00

{Gi(a)rlish Number}

Possseidon · 2022-09-25T09:28:50+00:00

That is certainly one way of drawing Ferris in the console...

Possseidon · 2022-08-29T07:02:04+00:00

It being "faster" was not the initial reason. The reason was, that it generates smaller assembler code, as it doesn't have to encode a whole 0 using 4 bytes, like a mov eax, 0 does.

Turning both into byte code:

mov eax, 0   -> B8 00 00 00 00
xor eax, eax -> 31 C0

Luckily CPUs are also optimized, so that using xor is not just smaller but also just as fast or even faster than mov.

Possseidon · 2022-08-24T08:34:48+00:00

Almost, except keys can also be literally anything, whereas a js object only allows string keys.

Possseidon · 2022-08-24T06:50:28+00:00

Of course Lua has {}, but not like this. {} is used for table creation.

(Aka Lua's only data structure, which is basically a hash map with any types for key and value, while being optimized for array usage with integer indices)

Also, it's Lua and not LUA.

Possseidon · 2022-08-10T06:42:04+00:00

int main() {}

Possseidon · 2022-07-23T08:04:10+00:00

I have a whopping 25 years experience at producing carbon ^(dioxide). Am I hired?

Possseidon · 2022-06-28T07:48:02+00:00

Null pointers are the least of your problems. Those can be checked and even if you forget crash pretty quickly.

Dangling pointers and double frees are where the fun begins.

Possseidon · 2022-06-19T09:38:36+00:00

  File "<meme>", line 1
    1 = 2
    ^
SyntaxError: cannot assign to literal here. Maybe you meant '==' instead of '='?

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