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Re: Perl Internals: Hashes

by hardburn (Abbot)
on Apr 14, 2004 at 21:24 UTC ( #345209=note: print w/replies, xml ) Need Help??


in reply to Perl Internals: Hashes

Do Perl hashes differ in implementation versus "associative arrays" that appear in other languages?

Maybe. Looking up key/value pairs doesn't necessarily have to be done by a hash, but it's certainly the first data structure I'd reach for when I needed that sort of functionality (even before I knew a lot of Perl).

There are a lot of details about hash implementations that will make tradeoffs for various system resources. I doubt any language implements them exactly the same way perl does (and I wouldn't be surprised if many details under Ponie will be different from the traditional perl implementation). In fact, the exact implementation details of hashes has changed many times just in Perl5.

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: () { :|:& };:

Note: All code is untested, unless otherwise stated

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