I'm using an old version of curry and all functions of Haskell works fine so far, but I have problem with realtoFrac and fromInteger
Prelude> :t fromInteger
PAKCS_Main_Exp.curry, line 2.17: Error:
`fromInteger' is undefined
ERROR occurred during parsing!
Prelude> :t realtoFrac
PAKCS_Main_Exp.curry, line 2.17: Error:
`realtoFrac' is undefined
ERROR occurred during parsing!
I think that this can happen because is an old version, so, in old versions of curry how can I use realtoFrac or fromInteger?
Thanks in advance and apologies for my bad English