[Bug c++/99586] New: Use of class template identifier checked for CTAD before instantiation

[johelegp at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99586

            Bug ID: 99586
           Summary: Use of class template identifier checked for CTAD
                    before instantiation
           Product: gcc
           Version: 11.0
               URL: https://godbolt.org/z/4KWWjT
            Status: UNCONFIRMED
          Keywords: rejects-valid
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: johelegp at gmail dot com
                CC: johelegp at gmail dot com
  Target Milestone: ---

See https://godbolt.org/z/4KWWjT.
```C++
#include<array>
template<auto>struct A{};
template<auto... V>A a=A<std::array{V...}>{};
```