10 extern unsigned char _cbtype_[]; /* in /usr/src/libc/gen/ctype_.c */
12 #define isop(c) ((_cbtype_+1)[c]&_O)
13 #define isalpha(c) ((_cbtype_+1)[c]&(_U|_L))
14 #define isupper(c) ((_cbtype_+1)[c]&_U)
15 #define islower(c) ((_cbtype_+1)[c]&_L)
16 #define isdigit(c) ((_cbtype_+1)[c]&_N)
17 #define isxdigit(c) ((_cbtype_+1)[c]&(_N|_X))
18 #define isspace(c) ((_cbtype_+1)[c]&_S)
19 #define ispunct(c) ((_cbtype_+1)[c]&_P)
20 #define isalnum(c) ((_cbtype_+1)[c]&(_U|_L|_N))
21 #define isprint(c) ((_cbtype_+1)[c]&(_P|_U|_L|_N))
22 #define iscntrl(c) ((_cbtype_+1)[c]&_C)
23 #define isascii(c) ((unsigned)(c)<=0177)
24 #define toupper(c) ((c)-'a'+'A')
25 #define tolower(c) ((c)-'A'+'a')
26 #define toascii(c) ((c)&0177)