Re: From wchar_t to char32_t

I did: > * lib/mbiter.h: Include instead of . > (mbiter_multi_next): Use mbrtoc32 instead of mbrtowc. > * lib/mbuiter.h: Include instead of . > (mbuiter_multi_next): Use mbrtoc32 instead of mbrtowc. > * lib/mbfile.h (mbfile_multi_getc): Use mbrtoc32 instead of mbrtow

doc: Reference some reported bugs (in comments)

To make it easier to track the reported bugs: 2023-06-30 Bruno Haible doc: Reference some reported bugs (in comments). * doc/posix-functions/mbrlen.texi: Add references to bug reports. * doc/posix-functions/mbrtoc16.texi: Likewise. * doc/posix-functions/mbrtoc3