diff options
Diffstat (limited to 'Types')
| -rw-r--r-- | Types/Cost.hs | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/Types/Cost.hs b/Types/Cost.hs index de091b8..a6a1160 100644 --- a/Types/Cost.hs +++ b/Types/Cost.hs @@ -51,6 +51,9 @@ unknownCostCalc = \_e -> error "No cost calculation available" newtype Entropy t = Entropy Int deriving (Num, Show) +class CalcEntropy d t where + calcEntropy :: d -> Entropy t + -- | Entropy can never go negative when subtracting bits from it. reduceEntropy :: Entropy t -> Int -> Entropy t reduceEntropy (Entropy a) b = Entropy (max 0 (a - b)) |