Those two snippets aren't equivalent. Aside from the fact that the latter also exits if <STDIN> returned undef, you reversed the order of the loop body (...) and the exit condition (last INPUT if $line eq ".\n";)

In reply to Re^3: do {$i++} until vs. $i++ until by ikegami
in thread do {$i++} until vs. $i++ until by jethro

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