How do I convert a list to a tuple in Haskell?

Question

How can I best convert a list to a tuple in Haskell:

[1,2,3,4,5,6] -> (1,2,3,4,5,6)

Answer 1

Tuples and lists are very different things. About the best you can do is to manually write a conversion function:

toTuple :: [a] -> (a,a,a,a,a,a)
toTuple [a,b,c,d,e,f] = (a,b,c,d,e,f)

Notice how different the types are: the single variable of the list expands to six variables for the tuple. So you'll need one function for each size of tuple.