in reply to Re^2: Puzzling $| behavior
in thread Puzzling $| behavior
I don't know if perl's documentation defines (as a feature) the order in which arguments are evaluated
It's not, but no one has mentioned a system or version where the arguments are evaluated in any order other than left-to-right in past discussions on the subject.
It's technically subject to change since it's not documented, but I find it highly unlikely to change in Perl5.
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