[Haskell-cafe] Custom unary operator extension?

[Peter Verswyvelen]

Malcolm Wallace wrote:
> Incidentally, the nhc98 compiler has always permitted the definition of
> unary operators, as an extension to the language.  (It was just more
> convenient to create a general mechanism for unary/prefix operators,
> than to code the special case for negative numbers.)
Cool! I found it rather ugly that the negation operator was wired-in. 
It's a petty this is not part of the upcoming Haskell standard, or is 
it? GHC can't do this right?

Peter