Closed DanBurton closed 12 years ago
foldl' wasn't added to Data.Set until containers-0.4.2, so I recommend adding a dependency constraint
foldl'
Data.Set
containers-0.4.2
containers >= 0.4.2
Good catch, thanks.
foldl'
wasn't added toData.Set
untilcontainers-0.4.2
, so I recommend adding a dependency constraint