> Will methods explained here work for boolean expressions? The convenience of defining using specialised datatypes for serialising numeric operations comes from Num being a typeclass. This is not the case for Bool:
Prelude> :info Num class (Eq a, Show a) => Num a where (+) :: a -> a -> a ... -- Defined in GHC.Num Prelude> :info Bool data Bool = False | True -- Defined in GHC.Bool > Is there a way to extract parameter names from function definition to > use them in Show instance? Or should I just use same names everywhere? The only kind of introspection I know comes from Template Haskell, but I'm sure there are other methods that I'm not aware of available. On Sun, Mar 6, 2011 at 7:28 AM, Evgeny Grablyk <evgeny.grab...@gmail.com> wrote: > Many thanks for your help! Seems to be what I need. Two more related > questions: > > Will methods explained here work for boolean expressions? > Is there a way to extract parameter names from function definition to > use them in Show instance? Or should I just use same names everywhere? > > In case that helps, here's the code I need to convert (the code in > where part of solveScheme): http://npaste.de/aKY3cn0xZf/ > > -- > Evgeny > > _______________________________________________ > Haskell-Cafe mailing list > Haskell-Cafe@haskell.org > http://www.haskell.org/mailman/listinfo/haskell-cafe > _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
