https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113763
--- Comment #7 from Jonathan Wakely <redi at gcc dot gnu.org> --- (In reply to Jakub Jelinek from comment #6) > Jon, what about Iain's question whether it isn't a bug we use constexpr on > the ctor even in C++11 mode? > Do we treat such papers as DRs on the library side? No, but it looks like we did at some point in the past (see also the constexpr <cmath> stuff, PR 102916 et al). I'm not very motivated to replace those constexpr with _GLIBCXX14_CONSTEXPR on pair, tuple and initializer_list, but for correctness we should do it.
