What does this piece of code do?

Question

Int x,y,z,q;
q = (x,y,z);
cout << q;

I know I didn't insert anything to the variables, that's becouse I don't want to know what this codes outputs, but what it DOES.

Thanks❤️

Answer 1

~ swim ~
Of course I've used it in for loops, the assignment part is what I wasn't familiar with.

OK I think I got it thanks a lot!

Answer 2

~ swim ~

How is it useful?

Answer 3

~ swim ~
OK, didn't quite get it but thanks anyway!

Answer 4

~ swim ~
Just why and when should one be using it.
Can you please give me an example, maybe?