Re^2: Double your return!!!!

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Re: Re^2: Double your return!!!! by BrowserUk (Patriarch) on Feb 19, 2003 at 07:31 UTC
`!!$ok;` is better, though I did say "In most cases". The only situation I can think of where `return $ok;` instead of `return 1 if $ok;` is going to fail, is if the calling code is using the boolean return value to do math? Can you think of any others. Examine what is said, not who speaks. The 7th Rule of perl club is -- pearl clubs are easily damaged. Use a diamond club instead.	[reply] [d/l] [select]
Re^4: Double your return!!!! by Aristotle (Chancellor) on Feb 19, 2003 at 11:13 UTC
It also normalizes undefined values to the false empty string, so that the calling code needn't guard against warnings. I'm not sure if context makes any difference here; I have this feeling it does, but a few very quick tests didn't confirm it. Makeshifts last the longest.	[reply]
Re: Re^4: Double your return!!!! by BrowserUk (Patriarch) on Feb 19, 2003 at 13:19 UTC
I was assuming (on the basis of the name and the way it was being used) that $ok in the original example was a boolean value, hence could be returned directly without the need for further cleaning. I did actually think of suggesting `!!$ok` originally, but I remembered the controvercy the idea engendered when I suggested that once before at Re: Re: variable set to 0 ? 0 : 1, so I tried to dodge the issue. However, it seems there is always some jerk ready with the -- marker even when they obviously do not understand the issues at hand. Even asking a question (as at Re: Re^2: Double your return!!!! is enough to get the language lawyers scribbling. It's a real shame they don't have the bottle to expound their opinions with words as well as actions. FWIW, I learned another tid-bit. Thankyou. Examine what is said, not who speaks. The 7th Rule of perl club is -- pearl clubs are easily damaged. Use a diamond club instead.	[reply] [d/l]