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From: "redi at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/95807] GCC accepts "void value not ignored as it ought to
 be" in function template
Date: Mon, 22 Jun 2020 09:46:27 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D95807

--- Comment #3 from Jonathan Wakely <redi at gcc dot gnu.org> ---
(In reply to Haoxin Tu from comment #2)
> (In reply to Andrew Pinski from comment #1)
> > I think it is rejected at instanition time.
>=20
> Hi, Andrew. Shouldn't it be rejected at compiling time?

It could be, but that is not required by the C++ standard.

> Is this case similar with bug.cc?

Yes. The ill-formed template is not diagnosed unless you instantiate it. Th=
at
is allowed by the standard.=