[Bug libstdc++/81950] _GLIBCXX17_INLINE macro not used consistently

[rs2740 at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81950

TC <rs2740 at gmail dot com> changed:

           What    |Removed                     |Added
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                 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.