Substitute the definition of type Table into the error: Type error in explicitly typed binding *** Term : [(a,p)] *** Type : [(a,b)] *** Does not match : [Table]
where [Table] = [[(Address,Port)]] Do you see why the expression [ (a,p) ] cannot have type [ [ (Address, Port) ] ] ? Regards, Chris On 11/1/07, karle <[EMAIL PROTECTED]> wrote: > > My declaration is as followed:- > > type Address = Int > data Port = C | D deriving(Eq,Show) > data Payload = UP[Char] | RTDP(Address,Port) deriving(Eq,Show) > data Pkgtype = RTD | U deriving(Eq,Show) > type Pkg = (Pkgtype,Address,Payload) > type Table = [(Address,Port)] > > > findport::[Pkg]->[Table]->[([Pkg],[Pkg])] > findport [(pt,ad,pa)] [(a,p)] > | ( p == C) = ([pt,ad,a],[]) > | otherwise = ([],[pt,ad,a]) > > Error received:- > > Type error in explicitly typed binding > *** Term : [(a,p)] > *** Type : [(a,b)] > *** Does not match : [Table] > > Can anyone please help? > -- > View this message in context: > http://www.nabble.com/Need-help-from-a-newby-tf4735009.html#a13540531 > Sent from the Haskell - Haskell-Cafe mailing list archive at Nabble.com. > > _______________________________________________ > Haskell-Cafe mailing list > [email protected] > http://www.haskell.org/mailman/listinfo/haskell-cafe > > _______________________________________________ Haskell-Cafe mailing list [email protected] http://www.haskell.org/mailman/listinfo/haskell-cafe
