All, I was trying to use the tuple in a set, and the STL complained about not having an operator&() - I think. My question is, is tuple supposed to be usable in a set? I read the STL docs: no mention of operator&() required. I tried both STLport and gcc's stl. I'm using gcc 3.2.2, and the snippet of code is real easy: ,---------------- | #include <boost/tuple/tuple.hpp> | #include <set> | | using namespace std; | | using namespace boost; | | int | main(int, char *[]) | { | typedef tuple<int, int, int> Things; | | std::set<Things> mySet; | | Things oneThing(1,2,3); | mySet.insert(oneThing); | | return 0; | } `---------------- tia, TJ -- Trey Jackson tjackson@ichips.intel.com "Nobody can give you wiser advice than yourself." -- Cicero