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From: "fchelnokov at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug c++/104000] Ordinary constructor cannot delegate to `consteval`
 constructor
Date: Fri, 18 Feb 2022 10:23:30 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D104000

--- Comment #5 from Fedor Chelnokov <fchelnokov at gmail dot com> ---
Based on stackoverflow answer, a modified example was found with the delega=
tion
to consteval constructor:
```
struct A {=20=20=20=20=20=20=20
    int i =3D 0;
    consteval A() =3D default;
    A(const A&) =3D delete;
    A(int) : A(A()) {}
};
```
which is accepted in GCC. Demo: https://gcc.godbolt.org/z/5PjraK5ox

Clang rejects it until one remove `A(const A&) =3D delete`, which is probab=
ly
another issue.=