> Are you thinking of something else? That's an effect of call by value, but linked lists actually aren't good at that and you have to copy them to pass them ar

> Are you thinking of something else? That's an effect of call by value, but linked lists actually aren't good at that and you have to copy them to pass them around. Are you thinking of something else? Haskell (and all other ML-family languages, and Lisps) lists are passed around by copying a single pointer to the head element. Different lists can share tail elements, i.e., elements can be members of more than one list. All this is in contrast to Java-style linked lists, where there is a list object that controls its elements.