Programmer Humor

19463 readers

15 users here now

Welcome to Programmer Humor!

This is a place where you can post jokes, memes, humor, etc. related to programming!

For sharing awful code theres also Programming Horror.

Rules

Keep content in english
No advertisements
Posts must be related to programming or programmer topics

founded 1 year ago

MODERATORS

[email protected]

222

Oh yea, that's the good stuff huffs glue (programming.dev)

submitted 11 months ago by [email protected] to c/[email protected]

22 comments fedilink hide all child comments

you are viewing a single comment's thread
view the rest of the comments

[–] [email protected] 4 points 11 months ago (1 children)

No, not at all. It's a joke post, abusing the in-memory representation of the Option type to construct numbers. When nesting the Option type, it turns into a densely packed bit vector...

And if I understand the purpose of Fin correctly, you're picking on the one 'peasant language' that actually has something like that built-in.
In Rust, you can specify the type of an array as e.g [u8; 3]. Which is an array containing values of type u8 (unsigned 8-bit integer) with a fixed, compile-time-guaranteed length of 3. So, [u8; 3] could be used to represent an RGB color, for example.
It is an array, not a set, but well, close enough.

[–] [email protected] 3 points 11 months ago* (last edited 11 months ago)

Fin is a type of finite oridinals bounded by a nat. For example the WTF type in there is the same type as Fin 8.

Of course every language can have Fin with a fixed integer, like the post suggest, by just stacking options.

However for a properly defined Fin type, the input number is dynamic, serves as a bound for the element of the type. For example, Adga was able to type the fact that nth fibonacci number is a finite ordinal bounded by a function of n. Which I believe is not typable in rust?