Neither methods generate a warning for me, using perl 5.8.4.

$ perl -wle '$outhash{$ARGV[0]}++; print $outhash{$ARGV[0]}' foo
1
$ perl -wle '$outhash{$ARGV[0]}
             ? ($outhash{$ARGV[0]}++)
             : ($outhash{$ARGV[0]} = 1);
             print $outhash{$ARGV[0]}' foo
1
$

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In reply to Re^3: Refactoring: dumb or witty use of ternary operator? by revdiablo
in thread Refactoring: dumb or witty use of ternary operator? by PetaMem

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