Plan 9 from Bell Labs’s /usr/web/sources/contrib/fernan/nhc98/src/prelude/Prelude/_EnumFromThen.hs

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Distributed under the MIT License.
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module Prelude where

import _FromEnum
import _EnumFromToInc
import _EnumFromToDec

_enumFromThen :: a -> a -> Int -> [a]
_enumFromThen n n' m =
   let step = _fromEnum n' - _fromEnum n
   in if step >= 0 then
	  _enumFromToInc (_fromEnum n) step m
      else
	  _enumFromToDec (_fromEnum n) step 0


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