9 Dec
2011
9 Dec
'11
10:53 a.m.
On December 8, 2011 20:15:57 Iavor Diatchki wrote:
this is the way things used to be in Haskell 1.4 (if you are curious take a look at page 21 of http://haskell.org/definition/haskell-report-1.4.ps.gz). I am not exactly sure why the change with the "fail" method happened but I think it had something to do with concerns that depending on the pattern your program might get a different constraint (e.g. Monad vs. MonadPlus). To me this seems perfectly reasonable I don't know why it was perceived as a problem.
That would seem like reasonable behavior to me as well. Cheers! -Tyson