How do I define nonfix operators in Haskell?

user_9680404 0
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In SML the "nonfix" operator can be used like:

datatype Proposition = Not_ of Proposition 

nonfix ~:
val ~: = Not_

In Haskell it would be like:

data Proposition = Not_ Proposition 

nonfix ~
(~) = Not_

But I didn't find an equivalent to "nonfix" in Haskell.

sml haskell
1 Answers

You didn't find an equivalent because there isn't one. Make a different plan. Options include a non-embedded DSL; quasiquoters; using postfix instead of prefix; using a non-operator name (such as not or (!)); using CPP or another preprocessor.

user_7916040
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