Related to boolean operations

Question

I have come across the following code:

const bool isIntersect = ...;
const bool isReversed = ...
if(!isIntersect != isReversed) {
  //some stuff
}

It is very weird for me. The question is can be it written in more clear way: So seems it is not as !isIntersect || isIntersect nor !isIntersect && isIntersect.

Answer 1

Let's draw a truth table:

isIntersect isReversed outcome
      false      false    true
      false       true   false
       true      false   false 
       true       true    true

As we can see, it's just an equivalence:

isIntersect == isReversed

So you can simplify the code into

if (isIntersect == isReversed) {
  // some stuff
}