fixity for (\\)

[John Launchbury]

I agree with Koen: \\ is list subtraction and we're all used to subtraction being left associative.

John.


Jon Fairbairn wrote:
> 
> On Wed, 17 Jan 2001, Koen Claessen wrote:
> > I propose that it gets the following fixity:
> >
> >   infixl 5 \\
> 
> Unless the it's common usage outside of Haskell, I oppose!
> 
> Getting
> 
>    List> [1,2,3]\\[2]\\[3]
>    ERROR: Ambiguous use of operator "(\\)" with "(\\)"
> 
> at compile time does no harm, but getting [1] instead of
> [1,3] _at run time_ does do harm.
>   Jón
> --
> Jón Fairbairn                                 Jon.Fairbairn@cl.cam.ac.uk
> 31  Chalmers Road                                        jf@cl.cam.ac.uk
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