Question

Often in my code I need to check whether the state of x amount of bools are all true OR all bools are false. So I do:

BOOL first, second, third;
if((first && second && third) || (!first && !second && !third))
     //do something

Being a lazy programmer, I want to know if there is some mathematical shorthand for this kind of query, instead of having to type out this whole thing every time?

Answer 1

The shorthand for all bools the same is testing for (pairwise) equality:

(first==second && second==third)

Of course you can expand this to any number of booleans, having N-1 equality checks joined with the and operator.