[Bug libstdc++/94013] [10 Regression] library algos need to work around cwg 2094

[euloanty at live dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94013

--- Comment #1 from fdlbxtqi <euloanty at live dot com> ---
Yeah. It looks like libc++ has the same bug. LOL.

volatile is really stupid tbh.