The Haskell Standard Library -- Random Number Generation
This library provides a basic interface for (splittable) random number generators.
The API documentation can be found here:
A module supplying this interface is required for Haskell 98 (but not Haskell 2010). An older version of this library is included with GHC in the haskell98 package. This newer version, with compatible api, is included in the Haskell Platform.
Please report bugs in the Github issue tracker (no longer in the GHC trac).