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From: "mick.pearson at wildblue dot net" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug c++/97710] Help with breaking change? cast pointer-to-member
 address in template parameter list
Date: Wed, 04 Nov 2020 11:57:40 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D97710

--- Comment #5 from Mick P. <mick.pearson at wildblue dot net> ---
EDITED: In my example/link I changed the type from "int" to "char" by mista=
ke,
but actually it shouldn't matter and using "int" produces even stranger res=
ults
that maybe should be investigated (using char for both produces the desired
diagnostic.)

Below is the "int" diagnostic, that looks erroneous in its own right
(nonsensical!)

><source>:4:17: error: '(int A::*)((0 =3D=3D -1) ? ((long int)0) : (((long =
int)0) + 0))' is not a valid template argument for type 'int A::*'
><source>:4:17: note: it must be a pointer-to-member of the form '&X::Y'=