http://www.perlmonks.org?node_id=443474


in reply to Re^2: Quantum Weirdness and the Increment Operator
in thread Quantum Weirdness and the Increment Operator

What is undefined is the order of operation. Since ($f + $g++) == ($g++ + $f) this is normally a reasonable assumption, but of course ($f++ + $f) != ($f + $f++).
-- gam3
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