[Haskell-cafe] Re: Types and hashes of hashes,
trouble for a Java-programmer...
barsoap at web.de
Mon Apr 13 12:33:38 EDT 2009
"John A. De Goes" <john at n-brain.net> wrote:
> Why not use an ordered pair as the key?
Well, that might be seriously less efficient, depending on the type and
size of keys: By nesting, you might avoid computing the hash of a
two-megabyte key in case the outer lookup failed. The same goes for any
other Map implementation, of course, O(zarroo) is always faster than
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