http://qs321.pair.com?node_id=11124006


in reply to Re^2: What's the right way to write a method which returns one line at a time from a file?
in thread What's the right way to write a method which returns one line at a time from a file?

if ( my $line = readline( $self->{file_handle} ) ) { return $line; } else { return; }

I appreciate old-school, but I think the quoted code will fail to return the last line of a file if it is '0' with no terminating newline. I haven't tested it, but wouldn't

if (defined(my $line = readline( $self->{file_handle} ))) { return $line; } else { return; }
or even just
    return readline($self->{file_handle});
(readline returns undef at eof) be better?


Give a man a fish:  <%-{-{-{-<

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Re^4: What's the right way to write a method which returns one line at a time from a file?
by Cody Fendant (Friar) on Nov 28, 2020 at 03:16 UTC

    Thanks for your contribution, sorry for the late response. In my case I happen to know that will never happen but perfectly valid point. My code is working but I will improve it with your suggestion.