https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89785
--- Comment #2 from Antony Polukhin <antoshkka at gmail dot com> --- > So you say that Addrlen(0) and Addrlen(2) are proper constexprs? Of course Addrlen(1) is not. Yes. But GCC does not even allow to define the Addrlen function: https://godbolt.org/z/xqR2Lr
