[Bug c++/90885] GCC should warn about 2^16 and 2^32 and 2^64

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90885

--- Comment #14 from Richard Biener <rguenth at gcc dot gnu.org> ---
(In reply to David Malcolm from comment #11)
> Warning for "2 ^ INT" seems reasonable, maybe just for that (I think I agree
> with comment #6).
> 
> Not sure what to call it: "-Wexclusive-or"???

-Wexp[onential] or -Wpow[er]?