C function pointer syntax. Every time I have to look it up!

This.

Last year, I had a struct that contained both a data pointer and arrays of function pointers, and the whole shebang as const with static initialiser. I had to look up the syntax, but I got it working without using void pointers.

Me learning Rust:
Jokes on you, I'm into that shit

Reminds me of fuckingblocksyntax.com

It's for closures in Objective-C but quite similar to function pointers in C. You need to replace * with ^

Maybe something like this website exists for C as well.

Lol here it is:

fuckingfunctionpointers.com/