Hi,
I have to second that. I recently "fell" over that problem when writing
instances for certain kinds of tuples. In libraries, such as "tuple"
there is a special 'OneTuple' constructor but I'd really appreciate a
more uniform fix -- but don't know of one either...
Gruss,
Christian
* Ganesh Sittampalam
On 23/12/2011 13:46, Ian Lynagh wrote:
On Fri, Dec 23, 2011 at 01:34:49PM +0000, Simon Peyton-Jones wrote:
Arguments Boxed Unboxed 3 ( , , ) (# , , #) 2 ( , ) (# , #) 1 0 () (# #)
Simple, uniform.
Uniform horizontally, but strange vertically!
It's worth mentioning that if you want to write code that's generic over tuples in some way, the absence of a case for singletons is actually a bit annoying - you end up adding something like a One constructor to paper over the gap. But I can't think of any nice syntax for that case either.
Cheers,
Ganesh
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