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From: "ryan_greenblatt at brown dot edu" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug c++/98717] New: [c++20] variadic concept can't take empty pack
Date: Mon, 18 Jan 2021 00:14:46 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D98717

            Bug ID: 98717
           Summary: [c++20] variadic concept can't take empty pack
           Product: gcc
           Version: 11.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: ryan_greenblatt at brown dot edu
  Target Milestone: ---

```
template<typename... T>
concept True =3D true;

static_assert(True<>);
```
"error: invalid use concept =E2=80=98True<>=E2=80=99"

https://godbolt.org/z/ndfjzj

I'm suprised this hasn't been caught already... (assuming there isn't a
duplicate bug report I missed)=