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Re: Quantum Weirdness and the Increment Operator

by hv (Parson)
on Jun 24, 2004 at 13:32 UTC ( #369350=note: print w/replies, xml ) Need Help??


in reply to Quantum Weirdness and the Increment Operator

I think the reason it works this way is simpler than you make out. The important thing is the implementation of the preincrement operator: do { $m = 20; ++$m } does not return the value 20, rather it returns the variable $m.

Therefore the sequence of operations reduces to:

$m = 20; # $m == 20 ++$m; # $m == 21 $temp1 = $m++ # $m == 22, $temp1 == 21 $temp2 = $m + $temp1 # 22 + 21 = 43 print $temp2

Hope this helps,

Hugo

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