21 Dec
2009
21 Dec
'09
5:26 a.m.
Am Montag 21 Dezember 2009 11:05:03 schrieb kane96@gmx.de:
still have the problem that it says: "Not in scope: data constructor `Month'" but Month is declared as: data Month = Jan | Feb | Mar | Apr | May | Jun | Jul | Ago | Sep | Oct | Nov | Dec deriving (Eq,Enum,Show)
Sorry, didn't look closely enough. Month is the name of the datatype. You want month to run through all elements of Month, so you need a list, namely [Jan .. Dec] (it might be necessary to include Ord in the derived instances for Month).