Symbol: _M_ISUPPER
usr/src/lib/libc/port/print/doprnt.c
79
#define _M_ISUPPER(c) (((c) >= 0) && ((c) < 256) && isupper((c)))
usr/src/lib/libc/port/print/doprnt.c
87
#define _M_ISUPPER(c) isupper((c))