
19 May
2006
19 May
'06
8:10 a.m.
Aditya Siram wrote:
I am trying to write a function 'applyArguments' which takes a function and a list and recursively uses element each in the list as an argument to the function. I want to do this for any function taking any number of arguments.
applyArgument f (arg) = f arg applyArgument f (arg:args) = applyArgument (f arg) args
This has failed in Hugs, so my question is: Can I conceptually do this? If so, what is the type signature of this function?
Deech
You can't do that, but there are other tricks that do work: http://okmij.org/ftp/Haskell/types.html which describes "Functions with the variable number of (variously typed) arguments" and "Genuine keyword arguments" -- Chris