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haskell / random

Random number library
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Instances for `Fixed` #76

Open lehins opened 4 years ago

lehins commented 4 years ago

One more type from base that is missing some instances.

I think I can see a lawful implementation for HasResolution e => UniformRange (Fixed e) instance. Also considering that we already have instance Random Integer we can definitely add instance HasResolution e => Random (Fixed e)

Shimuuar commented 4 years ago

For a change I think UniformRange is perfectly reasonable instance. Only question is what should random return? I think it should follow Dounle/Float/proposed instance for Rationals and return numbers in [0,1] range.

lehins commented 4 years ago

Yes, [0, 1] range for Random is also what I had in mind.