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[Bug c++/51804] Wabi false positives
- From: "jason at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Mon, 09 Jan 2012 22:22:11 +0000
- Subject: [Bug c++/51804] Wabi false positives
- Auto-submitted: auto-generated
- References: <bug-51804-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51804
Jason Merrill <jason at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |jason at gcc dot gnu.org
--- Comment #4 from Jason Merrill <jason at gcc dot gnu.org> 2012-01-09 22:22:11 UTC ---
(In reply to comment #0)
> I see a lot of things like:
>
> s.h:752:7: warning: the mangled name of âvoid
> __gnu_test::constexpr_single_value_constructible::_Concept<_Ttesttype,
> _Tvaluetype, true>::__constraint() [with _Ttesttype = std::tuple<int, int>;
> _Tvaluetype = std::tuple<short int, short int>]â will change in a future
> version of GCC [-Wabi]
>
> I'm finding it harder to make sense of this warning. Is this a false positive?
Doesn't look like it. Any use of variadic templates in a function signature
will result in a -Wabi warning now, since the mangling of argument packs
changes in -fabi-version=6.