https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94141
Marc Glisse <glisse at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Last reconfirmed| |2020-05-21 Status|UNCONFIRMED |SUSPENDED Ever confirmed|0 |1 --- Comment #3 from Marc Glisse <glisse at gcc dot gnu.org> --- It seems that this is as currently specified in C++20, but that some people are going to try and change the rules to avoid breaking code like this.