[Bug libstdc++/63345] Multiple undefined behaviors (static_cast<>) in libstdc++-v3/include/bits

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63345

--- Comment #4 from Jonathan Wakely <redi at gcc dot gnu.org> ---
(In reply to Marc Glisse from comment #3)
> thanks for the report. I don't think we should blindly replace static_cast
> with reinterpret_cast but rather try and understand what is going on.

Yes, I strongly agree.