On 13/11/2007, Henning Thielemann <[EMAIL PROTECTED]> wrote: > > On Tue, 13 Nov 2007, Dougal Stanton wrote: > > > -- int a = 3; > > -- int *pa = &a; > > ampersand :: t -> Pointer t > > ampersand a = Just a > > What's bad about using 'ampersand' function as replacement for the > constructor 'Just'? >
I also wanted to use it in pattern matching but have the advantage of all the stuff already written for Maybe. (Note this was an example I made up on the spur of the moment anyway.) I'd often thought it would be nice when adapting standard data structures for specific programs. Like, data Tree a = Leaf a | Branch a [Tree a] data FS a = File a | Folder a [FS a] Once you've got one it would be nice to repurpose it with more appropriate names. Just an idea! :-) D. -- Dougal Stanton [EMAIL PROTECTED] // http://www.dougalstanton.net _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
