https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97306
Bug ID: 97306 Summary: local extern decls & contexpr Product: gcc Version: 10.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ Assignee: unassigned at gcc dot gnu.org Reporter: nathan at gcc dot gnu.org Target Milestone: --- constexpr int *Foo (){ extern int i; return &i; } int i; static_assert(&i == Foo()); This should work