We cannot use memcmp() for that, as it incorrectly results in two
NaN values being equal.
Simply replace the whole self-written algorithm with std::equal(),
as it's doing the same thing, but lets the compiler decide when
to do the optimizations.
Amends db89349bdb.
[ChangeLog][QtCore][QList] Fixed a bug when two QLists holding NaN
values were considered to be equal.
Fixes: QTBUG-127473
Pick-to: 6.7 6.5 6.2
Change-Id: If7e77549b4cbeb96711893d14344b9e0a40c1a87
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
(cherry picked from commit cb3faeba3d9411ba82c311751bd7de36d0fec939)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
f53074c747