What does "While(n)" mean in C?

[Anthony973]

Hi all!

I've seen many time things like while(n) {...} or if(n) {...}.
What can it mean? Does it mean something such as “while variable n is undefined...”

I've tried searching, but I couldn't find the answer.

Can you help me? I'd appreciate it! :-)

[vlad from moscow]

It means that the expression inside the while or the if statement is converted to type bool and the result is used that to take the decision.

[tfityo]

These conditions hold if n is non-zero.

[Anthony973]

Thanks a lot! ☺