A fast concurrent unique identifier supply with a pure API http://github.com/ekmett/concurrent-supply/
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A fast supply of concurrent unique identifiers suitable for use
within a single process. Once the initial
Supply has been initialized,
the remainder of the API is pure. See
- Support GHC 8
-fno-full-lazinesswas added to work around changes in the GHC inliner.
- Claim to be Trustworthy
- Added a simple example