http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52114
--- Comment #4 from Daniel Krügler <daniel.kruegler at googlemail dot com> 2012-02-04 21:44:24 UTC --- (In reply to comment #3) > (PS: Daniel tweaked tuple_cat the same way) There is a difference here: For tuple_cat we have a user constraint that says that the template argument shall be a tuple_cat, but encourage the library to support other types satisfying the tuple-like protocol. Further, tuple_cat is a named function and hard to reach unintentionally. I tend to say that the approach here is what a good library should do. But it might be a good idea to open a library issue to require a reduced set of overload resolution participation for any conforming implementation for the new two generic inserter and extractor.
