https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97174
Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Known to fail| |10.2.1, 7.5.0 Keywords| |accepts-invalid Last reconfirmed| |2020-09-23 Ever confirmed|0 |1 --- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> --- Confirmed. clang rejects it with t.C:10:9: error: out-of-line definition of 'conv' does not match any declaration in namespace 'N' long N::conv (T val) ^~~~