Nonono! C++ beats C for this sort of thing, but not because of objects and interfaces. You don't want to sully a simple linked-list traversal with run-time polymorphism, abstract interfaces and virtual function calls!

As I said below, the C++ feature that's actually useful here is generic programming and concept conformance. (Function overloading is indispensable to implementation of the forthcoming C++0x idiom.) Nothing about the idiom there (pedantry: except using ++i to increment the iterator and i==j to compare, rather than inc(i) and equal(i,j)) uses object-orientation at all.