> Quite often but not always linked lists in C are intrusive. Yes, and that's a significantly different data structure from a cons-cell based list, so I don't

> Quite often but not always linked lists in C are intrusive. Yes, and that's a significantly different data structure from a cons-cell based list, so I don't think it's particularly relevant. C and C++ certainly aren't examples of one of the languages lispm is claiming uses the Lisp model. > And so no memory allocation is required to insert those objects into a list. This is a pretty key distinction which doesn't apply to the linked list objects I'm talking about.