Re: Re: Re: Simple Hash Q.

Weird, when I try to do something like that with my code using warnings, I get this under 5.6 and 5.00503:

Reference found where even-sized list expected at test line 1.
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So it's very strange that warnings/strict would not have indicated that this was the problem to begin with.

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Re: Re: Re: Re: Simple Hash Q. by cei (Monk) on Nov 26, 2000 at 09:20 UTC
I was doing it as a CGI on a CobaltRaq. The error log just gave me grief about the cgi-wrapper without telling me what the problem was. Likewise `use CGI::Carp qw/fatalsToBrowser/;` didn't tell me anything useful either. Regardless, I don't know that that particular error message would have told me that {} vs () was at fault.	[reply]
(Ovid) Re(5): Simple Hash Q. by Ovid (Cardinal) on Nov 26, 2000 at 19:10 UTC
Here's the trick: verify that all of your CGI scripts run from the command line before you run them through a browser. If you must run it through a browser, don't forget `use diagnostics` and try running it without a wrapper that might mask the errors. I don't know that that particular error message would have told me that {} vs () was at fault. Well, the error message would have mentioned a couple of things: one, which line number the problem was on. That's very important. Two, once you are more familiar with Perl, you'll see that a list is wrapped in parens () and that braces {} will return a reference. Once that becomes more ingrained, error messages like that will make more sense. Cheers, Ovid Join the Perlmonks Setiathome Group or just click on the the link and check out our stats.	[reply]