Booleans in

About Booleans

Booleans in C++ are represented by the bool type. A bool is either true or false.

Logical Operators

C++ supports three boolean operators: ! (NOT), && (AND), and || (OR). You can also use the alternative versions not, and, and or.

true || false // => true
true && false // => false
!true // => false
not false // => true

Precedence

The three boolean operators each have different operator precedence. As a consequence, they are evaluated in this order: ! first, && second, and finally ||. If you want to force a different ordering, you can enclose a boolean expression in parentheses (ie. ()), as the parentheses have even higher operator precedence.

!true && false   // => false
!(true and false) // => true

!true && 0.0   // => false
true + true + false // => 2