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

[cvs-commit at gcc dot gnu.org via Gcc-bugs]

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

--- Comment #13 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-11 branch has been updated by Jonathan Wakely
<r...@gcc.gnu.org>:

https://gcc.gnu.org/g:b59435ff6069583290c8e0953a58044f598a348c

commit r11-9899-gb59435ff6069583290c8e0953a58044f598a348c
Author: Jonathan Wakely <jwak...@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.

    (cherry picked from commit 76a45931ab7c831e32cebf13a6317e5e142f8151)