https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107981
Fedor Chelnokov <fchelnokov at gmail dot com> changed:
What |Removed |Added
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CC| |fchelnokov at gmail dot com
--- Comment #3 from Fedor Chelnokov <fchelnokov at gmail dot com> ---
The main problem as I can see, is that in GCC `operator auto` changes its name
after definition:
```
class A {
protected:
operator auto();
};
template<class>
struct B : A {
using A::operator auto;
};
B<int> bi; // ok everywhere, including GCC
A::operator auto() { return 1; }
B<char> bc; // ok everywhere, but in GCC
```
Online demo: https://gcc.godbolt.org/z/3cn73EGKs
After the definition, it becomes `A::operator int` in GCC, which is not like in
other compilers.
