[Bug c++/98717] [10/11 Regression] [c++20] variadic concept can't take empty pack

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98717

Patrick Palka <ppalka at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[c++20] variadic concept    |[10/11 Regression] [c++20]
                   |can't take empty pack       |variadic concept can't take
                   |                            |empty pack
                 CC|                            |ppalka at gcc dot gnu.org
   Last reconfirmed|                            |2021-01-19
   Target Milestone|---                         |10.3
     Ever confirmed|0                           |1
             Status|UNCONFIRMED                 |NEW
      Known to fail|                            |10.2.0, 11.0
      Known to work|                            |9.3.0

--- Comment #1 from Patrick Palka <ppalka at gcc dot gnu.org> ---
Confirmed.  We went from accepting to rejecting this testcase after r276764,
aka the C++20 concepts merge.