Hello everyone. I'm trying to write a code which works on binary trees. When I write code like this with a tree with empty nodes :
data Tree = Empty | Node Integer Tree Tree
function Node a (Node b Empty Empty) (Node c Empty Empty)
it works fine.
But when I try to create a more generic code like this which could work with trees who don't have empty nodes in grandchild level :
function Node a (Node b Tree Tree) (Node c Tree Tree
)
I get this error : Undefined data constructor "Tree"
Can you help me with creating more generic code please?
Thanks
