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From: "dangelog at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug libstdc++/96416] address_of() is broken by static_assert in
 pointer_traits
Date: Fri, 26 Mar 2021 14:19:28 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D96416

Giuseppe D'Angelo <dangelog at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |dangelog at gmail dot com

--- Comment #9 from Giuseppe D'Angelo <dangelog at gmail dot com> ---
Hi,

Stumbled across this indeed when trying to use contiguous iterators.

Sure enough, pointer_traits for them is ill-formed. But then I don't unders=
tand
why the "otherwise to_=C2=ADaddress(p.operator->())" part is in the Standar=
d at all,
if it can never be used.

Has this been raised as a library defect?

And are you recommending that everyone who defines their custom contiguous
iterators specializes pointer_traits for them? Call it _quite_ annoying...=