https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80016
Ivan Sorokin <vanyacpp at gmail dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- Resolution|--- |FIXED Status|ASSIGNED |RESOLVED --- Comment #6 from Ivan Sorokin <vanyacpp at gmail dot com> --- (In reply to Jonathan Wakely from comment #5) > I'd even argue the stating location still isn't right in this version, as > the error comes from ns::trait<T>::value not the logical expression > containing it. On GCC 10.2 the error location is very nice: <source>:13:46: error: incomplete type 'ns::trait<int>' used in nested name specifier 13 | && ns::trait<T>::value; | ^~~~~ https://godbolt.org/z/E7P7P8 I believe the bug can be considered fixed now. Thank you!