https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84143
--- Comment #2 from Neil Carlson <neil.n.carlson at gmail dot com> --- (In reply to Dominique d'Humieres from comment #1) > > gives 0. Should not it be 3? Yeah. I noticed the same thing myself. It is 3 if the type parameters are removed. I was intending to report it, but I thought I might have seen a similar PR linked from the PDT meta bug and was going to look again before doing so.