[Bug c++/100779] New: Partial specialization with non-deducible template parameters accepted

[ppalka at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100779

            Bug ID: 100779
           Summary: Partial specialization with non-deducible template
                    parameters accepted
           Product: gcc
           Version: 11.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: ppalka at gcc dot gnu.org
  Target Milestone: ---

template <int> struct A;
template <class> struct B;
template <class T> struct B<A<sizeof(T)>> { };

This partial specialization should be rejected because its template parameter T
is not deducible.