Re^3: Two simple code style advice questions

in reply to Re^2: Two simple code style advice questions
in thread Two simple code style advice questions

OK defined as 0? Yuck!

It would seem to me that most Unix commands return 0 when things are "OK." So.. if you want to accuse me of showing my C programming roots, I plead guily.

Peter L. Berghold -- Unix Professional
Peter -at- Berghold -dot- Net; AOL IM redcowdawg Yahoo IM: blue_cowdawg

Comment on Re^3: Two simple code style advice questions
Re^4: Two simple code style advice questions by Anonymous Monk on Jan 16, 2013 at 15:01 UTC
Why even bother defining a constant ;) `no warnings; if (0 == OK) { print 'Everything is ok here!'; }` [download]	[reply] [d/l]
Re^4: Two simple code style advice questions by BrowserUk (Pope) on Jan 16, 2013 at 15:33 UTC
It would seem to me that most Unix commands return 0 when things are "OK." So.. if you want to accuse me of showing my C programming roots, I plead guily. I understand the derivation, but still, the bland token `OK` has always suggested TRUE to me, and always will. Hence my suggested alternative of `use constant NOERROR => 0;` which seems less likely to cause confusion. That said, I wouldn't define a constant for 0 at all. It simply isn't necessary to compare against zero in Perl. The clearest idiom is simply: `my $errstr = $case ? $msg[ $case ] : '';` [download] But I'd still prefer setting `$msg[ 0 ] == '';` and simply: `my $errstr = $msg[ $case ];` [download] With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday' Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error. "Science is about questioning the status quo. Questioning authority". In the absence of evidence, opinion is indistinguishable from prejudice.	[reply] [d/l] [select]
Re^4: Two simple code style advice questions by runrig (Abbot) on Jan 16, 2013 at 18:53 UTC
It would seem to me that most Unix commands return 0 when things are "OK." BUT, (and I'm still trying to get the developers here to overcome this), in shell programming, zero IS true (e.g. consider && and \|\| in things like `cmd1 && cmd2` or `cmd1 \|\| cmd2`, and Perl is not shell.	[reply] [d/l] [select]


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Re^3: Two simple code style advice questions

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