# gets it right, providing you don't have side effects of conversion.
# local $TODO;
# $TODO = "pre 5.6 doesn't have flag to distinguish IV/UV"
-# if $[ < 5.005_56 and $copy1 > $max_iv;
+# if $] < 5.005_56 and $copy1 > $max_iv;
my $sign = ok (($copy_s2 <=> 0) == ($copy2 <=> 0),
"$process $copy1 (sign)");