[Haskell] Haskell Weekly News: October 10, 2006

2006-10-09 Thread Donald Bruce Stewart
--- Haskell Weekly News http://haskell.org/haskellwiki/HWN Issue 44 - October 10, 2006 --- Welcome to issue 44 of HWN, a weekly newsletter covering de

Re: [Haskell] Classes with no data type

2006-10-09 Thread Cale Gibbard
Use case to pattern match against the constructors of the datatype? This is assuming that you've made them explicit. If not, you'll at least want to extend your datatype with some information that allows you to determine what should be done with the values later. On 09/10/06, Thomas Davie <[EMAIL

[Haskell] Classes with no data type

2006-10-09 Thread Thomas Davie
Hi, I've met an interesting problem in terms of how to type a data structure and the functions that operate upon it. The problem centres around a single data type. This data type can be constructed in multiple ways using different functions, depending on the options the user specifies.

[Haskell] BCS FACS Christmas Meeting, Teaching Formal Methods, 15 December 2006; papers deadline 20 October 2006

2006-10-09 Thread Clare Martin
REMINDER: deadline for submissions 20 October 2006 Proceedings will be published in BCS Electronic Workshops in Computing (eWiC) series -- Call for Contributions and Participation -