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I'd seen, but never really taken any notice of the 'w' format for pack & unpack. Totally made for the job.

Perhaps the only downside of using 'w' instead of 'S' or 'L' is that you need to unpack the whole string to get to an individual value. With 'S' or 'L' you could have indexed into the string with substr to read or write an individual value. How much of a penalty this is will depend on your application and whether you will always need to access all the values in any given string each time.

Probably worth it if the savings on space are enough.


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In reply to Re: Re: Compressing a set of integers by BrowserUk
in thread Compressing a set of integers by toma

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