Safe Haskell | Safe-Inferred |
---|---|
Language | GHC2021 |
Documentation
pfix :: Term s (((a :--> b) :--> (a :--> b)) :--> (a :--> b)) Source #
Fixpoint recursion. Used to encode recursive functions.
Example:
iterateN' :: Term s (PInteger :--> (a :--> a) :--> a :--> a) -> Term s PInteger -> Term s (a :--> a) -> Term s a iterateN' self n f x = pif (n #== 0) x (self # n - 1 #$ f x) iterateN :: Term s (PInteger :--> (a :--> a) :--> a :--> a) iterateN = pfix #$ plam iterateN'
Further examples can be found in examples/Recursion.hs