Logical Operators

From Appmethod Topics
Jump to: navigation, search

Go Up to Binary Operators Index

Syntax

logical-AND-expression && inclusive-OR-expression
logical-OR-expression || 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).