Firefly258, are you saying that perldoc readline is wrong? From perldoc readline: 
for (;;) {
    undef $!;
    unless (defined( $line = <> )) {
        die $! if $!;
        last; # reached EOF
    }
    # ...
}

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That clearly indicates that EOF and a readline error can be distinguished by undefining $! before the call and then, if readline failed, checking if $! is set to non-0.

In reply to Re^2: Best way to handle readline errors? by jrw
in thread Best way to handle readline errors? by jrw

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