[Bug c++/70170] [6 regression] bogus not a constant expression error comparing pointer to array to null

[mpolacek at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70170

--- Comment #8 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Ah, true... well there's wi::sign_mask so maybe that.  But given Comment 5 I'll
hold off for now.