On Thu, Apr 4, 2024 at 5:29 PM Jonathan Wakely <jwak...@redhat.com> wrote: > I would appreciate more eyes on this to confirm my conclusions about > negative int_type values, and the proposed fix, make sense.
The way something like this is handled in glibc's ctype functions is that both branches are considered. For isXXX(c) whether c is -v or 256-v the same value is returned (except for EOF which is -1). This caused the least number of bad surprises. You could here also perform similar actions.
