The logical OR operator ( || ) returns the boolean value true if either or both operands is true and returns false otherwise. … The second operand is evaluated only if the first operand evaluates to false , because evaluation isn’t needed when the logical OR expression is true . It’s known as short-circuit evaluation.

How does logical or work in C?

The logical-OR operator performs an inclusive-OR operation on its operands. The result is 0 if both operands have 0 values. If either operand has a nonzero value, the result is 1. If the first operand of a logical-OR operation has a nonzero value, the second operand is not evaluated.

What is the difference between logical AND and logical or?

In logical AND, if both operands are non zero, then the condition becomes true. In logical OR, if both operands are non zero, then the condition becomes true. The !