Hi Julia, On Thu, Nov 3, 2022 at 1:45 PM Julia Lawall <julia.lawall@xxxxxxxx> wrote: > It should work now. Thanks! > However, without disable optional_qualifier, char is > still matching signed char. If you think that should be changed, I can do > that. Does `optional_qualifier` disable other things that might be interesting to have? If so, maybe this is less than ideal? If not, maybe it doesn't matter? Though, for what it's worth, gcc treats `char` as a separate type, even when using `-funsigned-char` or `-fsigned-char`. Jason