https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81950
TC <rs2740 at gmail dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |rs2740 at gmail dot com --- Comment #2 from TC <rs2740 at gmail dot com> --- Unless I'm mistaken, the practice is to use _GLIBCXX17_INLINE on things in C++ <= 14 that are newly made inline in C++17. in_place is new in C++17.