I think the confusion here is that the OP's $tiu => $min && $tiu < $max is equivalent to $tiu, $min && $tiu < $max.

What was intended, on the other hand is almost certainly $tiu >= $min && $tiu < $max

Key issue: >= is very different from =>. The former compares numerically. The latter is a fancy way to say comma.

In reply to Re^3: Useless use of private variable in void context by SuicideJunkie
in thread Useless use of private variable in void context by bh_perl

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