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From: "marxin at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug libstdc++/97415] Invalid pointer comparison in stringbuf::str()
 (reported by pointer-compare AddressSanitizer)
Date: Thu, 15 Oct 2020 15:29:27 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D97415

--- Comment #5 from Martin Li=C5=A1ka <marxin at gcc dot gnu.org> ---
(In reply to Jonathan Wakely from comment #4)
> Fixed on trunk so far. I'm undecided whether it needs to be backported.
> Although the comparison with null is formally unspecified, I think all the
> compilers we support behave as expected.

I wouldn't backport it as pointer-compare is quite experimental feature of =
the
AddressSanitizer.=