On: The Little C Function From Hell

[timbre]

I'm rusty on C, and confused. What should I use instead of signed int?

[rcfox → timbre]

unsigned int :)

[bvdbijl → rcfox]

and for negative numbers?

[rcfox → bvdbijl]

In that case, you can be pretty certain that you need a signed integer.

[esrauch → rcfox]

What if you only need to store negative integers?

[duaneb → esrauch]

Isn't that the same situation as only storing signed integers? The arithmetic is just a little different.

[ralph → duaneb]

No, you get room for one more negative int. x = x < 0 ? -x : x; is a common buggy abs(), e.g. when printing an integer. One should test if it's negative, perhaps print the '-', and then ensure it's negative for the rest of the per-digit code.