[Bug libstdc++/103848] [11/12 Regression] std::deque<>::iterator operator- uses "0" for nullptr check, triggers "zero-as-null-pointer-constant" warning

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103848

--- Comment #11 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Jonathan Wakely <redi@gcc.gnu.org>:

https://gcc.gnu.org/g:76a45931ab7c831e32cebf13a6317e5e142f8151

commit r12-6261-g76a45931ab7c831e32cebf13a6317e5e142f8151
Author: Jonathan Wakely <jwakely@redhat.com>
Date:   Tue Jan 4 21:57:16 2022 +0000

    libstdc++: Avoid -Wzero-as-null-pointer-constant warning [PR103848]

    libstdc++-v3/ChangeLog:

            PR libstdc++/103848
            * include/bits/stl_deque.h (operator-): Do not use 0 as null
            pointer constant.