https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96331
Pilar Latiesa <pilarlatiesa at gmail dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |pilarlatiesa at gmail dot com --- Comment #4 from Pilar Latiesa <pilarlatiesa at gmail dot com> --- Another testcase, taken from https://stackoverflow.com/questions/64567607/why-is-there-an-error-no-matching-function-for-call-to-aa-auto template <typename T> struct A {}; template <A> struct B {}; template <typename> struct is_B {}; template <A x> struct is_B<B<x>> {}; // error template <A x> using B_t = B<x>; // error