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Logical or and Exclusive Or

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Logical or and Exclusive Or

Binary ``or'' returns the logical disjunction of the two surrounding expressions. It's equivalent to || except for the very low precedence. This means that it short-circuits: i.e., the right expression is evaluated only if the left expression is false.

Binary ``xor'' returns the exclusive-OR of the two surrounding expressions. It cannot short circuit, of course.

Source: Perl operators and precedence
Copyright: Larry Wall, et al.

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