[Haskell-cafe] Custom unary operator extension?

Peter Verswyvelen bf3 at telenet.be
Sun Sep 9 05:22:30 EDT 2007

I find it unfortunate that one can't (I guess) define custom unary 
operators in Haskell.

Is this correct? If so, is this just because  eg (* 100) declares a 
function that partially applies the * operator, so this syntax disallows 
unary operators? Could this be fixed by introducing a different syntax 
for partial operator application? E.g. (? * 100) instead of just (*100)? 
This would also fix the ambiguity between (-10) as being either the 
number minus 10 or the "subtract by 10' function.


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