> But in the same way and operator does not output '1', despite TRUE AND TRUE = TRUE.

That's the feature of short circuit and and or which can't be replicated with xor

Grandfather and ikegami already explained it perfectly.

Cheers Rolf
(addicted to the Perl Programming Language :)
Wikisyntax for the Monastery FootballPerl is like chess, only without the dice

In reply to Re^3: 'xor' operator is not a sibling to 'or' and 'and'? by LanX
in thread 'xor' operator is not a sibling to 'or' and 'and'? by rsFalse

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