[Bug c++/107813] Enum with underlying type uint8_t bad promotion for unsigned char

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107813

Jonathan Wakely <redi at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |INVALID
             Status|UNCONFIRMED                 |RESOLVED

--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Reduced:

void f(unsigned char) = delete;
void f(int) { }

enum TEnum: unsigned char {
    Kot = 67
};

template<typename T> void g(const T& t) { f(t); }
template<> void g(const unsigned char&) { }

int main()
{
  g(Kot);
}


This compiles with GCC 9 and not with GCC 10. But GCC 10 is correct, this was
fixed by commit r10-3736-ge295e3d981355c

    PR c++/92032 - DR 1601: Promotion of enum with fixed underlying type.