@ryo @charliebrownau @furgar "Not using unused variables is actually better when it comes to using less memory and shit"
That's why the compiler should give you a warning. Then you can remember to remove them if you forgot.

Also, I have never used it (I actually haven't done much with C other than learning it, and writing core util-like programs that just do something with text), but there is a garbage collector that can be used in C, I remember that, but forgot the name of it. Really, I think every language should have one and also have it be optional. I mean, why not? It's possible.