[Haskell-cafe] Problem with type families

2009-09-21 Thread Victor Nazarov
I've tried to reimplement code presented in the following blog post: http://cdsmith.wordpress.com/2009/09/20/side-computations-via-type-classes/ But I've got stuck with the following error: Triangulable.hs:41:8: `addRows' is not a (visible) method of class `Triangulable'

Re: [Haskell-cafe] Problem with type families

2009-09-21 Thread Daniel Fischer
Am Montag 21 September 2009 23:15:48 schrieb Victor Nazarov: I've tried to reimplement code presented in the following blog post: http://cdsmith.wordpress.com/2009/09/20/side-computations-via-type-classes/ But I've got stuck with the following error: Triangulable.hs:41:8: `addRows' is

Re: [Haskell-cafe] Problem with type families

2009-09-21 Thread Victor Nazarov
On Tue, Sep 22, 2009 at 1:31 AM, Daniel Fischer daniel.is.fisc...@web.de wrote: Am Montag 21 September 2009 23:15:48 schrieb Victor Nazarov: I've tried to reimplement code presented in the following blog post: http://cdsmith.wordpress.com/2009/09/20/side-computations-via-type-classes/ But