in reply to "Impossible" socket error return
How can it get undef back, without $! being set?
readline (for which <$fh> is a shortcut) returns undef on end of file as well as on error.
By the way, there's no way to know if $! is meaningful after readline because readline has no way of signaling an error occurred.
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Re^2: "Impossible" socket error return
by dd-b (Pilgrim) on Sep 28, 2011 at 14:55 UTC |