[Haskell-cafe] Hash table constructors return table in IO Monad. Why?
bos at serpentine.com
Thu May 12 20:22:58 CEST 2011
On Thu, May 12, 2011 at 9:22 AM, Stephen Tetley <stephen.tetley at gmail.com>wrote:
> The hashtable needs to be been created in IO, after that, think of the
> 'hashtable' as a analogous to a file handle. You have to pass it
> around to do anything with it - but the only things you can do with it
> are in IO.
The appropriate pure package to be using instead is unordered-containers.
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