Logical Operators

Logical operators allow joining multiple boolean expressions. Like C/C++ and Java, the && and || operators provide for logical-and and logical-or. Both operators have short-circuit evaluation; they only evaluate the right-hand-side expression if the left-hand-side evaluates to true or false, respectively.

bool a;
a = false && false; // == false
a = false && true;  // == false
a = true && false;  // == false
a = true && true;   // == true

bool a;
a = false || false; // == false
a = false || true;  // == true
a = true || false;  // == true
a = true || true;   // == true