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Re^5: Idiom: hashes as sets

by dragonchild (Archbishop)
on Jul 07, 2008 at 00:48 UTC ( #695890=note: print w/replies, xml ) Need Help??

in reply to Re^4: Idiom: hashes as sets
in thread Idiom: hashes as sets

  • A set containing some strings and some objects that behave as strings makes perfect sense to me. For example, a set that contains some strings from user input and other strings that live in a DBM::Deep DB.
  • No, I cannot presume all future requirements. But, I can presume that many future requirements will lead me to places that other peoples' future requirements led them. Therefore, with sets, I can guess that many future requirements will probably require one or more advanced set operations.
  • Given that most sets are implemented as hashes, this is a non-starter. And, the issue isn't one of whether or not the hash operations are going to work. The issue is whether or not my implementation of the pieces of set theory I need will be as correct as that in a well-used module. A hash is not a set.

My criteria for good software:
  1. Does it work?
  2. Can someone else come in, make a change, and be reasonably certain no bugs were introduced?

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