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Logical Operators

Syntax

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    logical-AND-expr  && inclusive-OR-expression
    logical-OR-expr   || logical-AND-expression
    ! cast-expression

Remarks

Operands in a logical expression must be of scalar type.

&& logical AND; returns true only if both expressions evaluate to be nonzero, otherwise returns false. If the first expression evaluates to false, the second expression is not evaluated.

|| logical OR; returns true if either of the expressions evaluate to be nonzero, otherwise returns false. If the first expression evaluates to true, the second expression is not evaluated.

! logical negation; returns true if the entire expression evaluates to be nonzero, otherwise returns false. The expression !E is equivalent to (0 == E).

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