https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88479
--- Comment #4 from joseph at codesourcery dot com <joseph at codesourcery dot com> --- On Thu, 13 Dec 2018, vincent-gcc at vinc17 dot net wrote: > The C standard would have to drop ones' complement and sign-magnitude first. And there's substantial support for doing so. > In any case, this is not a good programming practice, and for some projects, > it If you want to do modulo arithmetic on signed values, the idiom (in common-usage C which supports conversions to signed integer types as being modulo) is to convert to unsigned, do arithmetic on unsigned and convert back to signed. I don't think that's a bad practice. (Unintentional overflows on conversion to signed would be bad, but the problem is determining what's intentional.)
