https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104712
--- Comment #4 from Jonathan Wakely <redi at gcc dot gnu.org> --- The in-class declaration is the definition if it's inline and has an initializer.
redi at gcc dot gnu.org via Gcc-bugs Mon, 28 Feb 2022 01:23:04 -0800
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104712
--- Comment #4 from Jonathan Wakely <redi at gcc dot gnu.org> --- The in-class declaration is the definition if it's inline and has an initializer.