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From: "redi at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug c++/102804] [9/10/11/12 Regression] template matching fails w/
 false ambiguity on ternary expressions with enums class defined with unsigned
 typedef
Date: Mon, 18 Oct 2021 16:43:42 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D102804

--- Comment #7 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Oops, sorry the reduced example was missing the first line.

Fixed, and further reduced:

using int32_t =3D int;
enum: unsigned int32_t { foo };
int f(int);
int f(unsigned);
auto x =3D f(1 ? foo : 1);=