What is !0 in C?

Question

I know that in C, for if statements and comparisons FALSE = 0 and anything else equals true.

Hence,

int j = 40
int k = !j

k == 0 // this is true
         


        

Answer 1

The Bang operator (!) is the logical not operator found commonly in C, C++ and C#, so

!0 == 1
!1 == 0

This is based on the language characteristic of what is interpreted to be either true or false... in more modern languages it would be like this

!false == true
!true == false

See DeMorgan Law concerning truth tables...