Ah, got it. C89 had wchar_t, defined in <stddef.h>, but <wchar.h> and <wctype.h> didn't show up until '95, so it wasn't very useful. Hence my vestigial memory o

Ah, got it. C89 had wchar_t, defined in <stddef.h>, but <wchar.h> and <wctype.h> didn't show up until '95, so it wasn't very useful. Hence my vestigial memory of it being a prematurely standardized checkbox feature.