https://gcc.gnu.org/bugzilla/show_bug.cgi?id=59170
--- Comment #3 from Jan Kratochvil <jan.kratochvil at redhat dot com> --- -D_GLIBCXX_DEBUG gcc-5.1.1-1.fc23.x86_64 (gdb) p end._M_current == ((std::__debug::vector<int, std::allocator<int> > *)end._M_sequence)._M_impl._M_finish $11 = true