On Thu, May 12, 2011 at 9:22 AM, Stephen Tetley <stephen.tet...@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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