I uploaded some fixes to multivalues.zip: - Workaround for BCB's lack of EBO - Fixed some overzealous searches/replaces - Eliminated SFINAE from test program - Moved some tests out of the macros to assist in debugging, should anyone have problems with support in a particular compiler. Some questions: - What operator(s) should we use to delimit user-defined predicates? Here are some interesting candidates: if (any_of(...) << some_predicate() >> 5)... // 1 if (any_of(...) < some_predicate() > 5)... // 2 if (any_of(...) ^ some_predicate() ^ 5)... // 3 if (any_of(...) / some_predicate() / 5)... // 4 1 seems pretty good because the two-character operators stand out well. 2 works pretty well, but I'm concerned that the operators may get lost if the predicate is a specialization of a template type; the template argument list uses the same tokens. (1 is better in that case because of the doubled tokens.) 3 is an unusual operator to overload, so it is largely unique to this context. 4 works, but I'm concerned that it is gross misuse of the operator (overloading it for division and filesystem path manipulation are sensible; is this?). - Should we attempt VC6 support? If so, some functionality or syntax will have to be sacrificed. It may be that the iterator pair support is all that we must sacrifice. -- Rob Stewart stewart@sig.com Software Engineer http://www.sig.com Susquehanna International Group, LLP using std::disclaimer;