include/ctype.h

   1 #ifndef _CTYPE_H_
   2 #ifdef __cplusplus
   3 extern "C" {
   4 #endif
   5 #define _CTYPE_H_
   6
   7 #include "_ansi.h"
   8
   9 int _EXFUN(isalnum, (int __c));
  10 int _EXFUN(isalpha, (int __c));
  11 int _EXFUN(iscntrl, (int __c));
  12 int _EXFUN(isdigit, (int __c));
  13 int _EXFUN(isgraph, (int __c));
  14 int _EXFUN(islower, (int __c));
  15 int _EXFUN(isprint, (int __c));
  16 int _EXFUN(ispunct, (int __c));
  17 int _EXFUN(isspace, (int __c));
  18 int _EXFUN(isupper, (int __c));
  19 int _EXFUN(isxdigit,(int __c));
  20 int _EXFUN(tolower, (int __c));
  21 int _EXFUN(toupper, (int __c));
  22
  23 #ifndef __STRICT_ANSI__
  24 int _EXFUN(isascii, (int __c));
  25 int _EXFUN(toascii, (int __c));
  26 int _EXFUN(_tolower, (int __c));
  27 int _EXFUN(_toupper, (int __c));
  28 #endif
  29
  30 #define _U      01
  31 #define _L      02
  32 #define _N      04
  33 #define _S      010
  34 #define _P      020
  35 #define _C      040
  36 #define _X      0100
  37 #define _B      0200
  38
  39 extern  __IMPORT _CONST char    _ctype_[];
  40
  41 #ifndef __cplusplus
  42 #define isalpha(c)      ((_ctype_+1)[(unsigned)(c)]&(_U|_L))
  43 #define isupper(c)      ((_ctype_+1)[(unsigned)(c)]&_U)
  44 #define islower(c)      ((_ctype_+1)[(unsigned)(c)]&_L)
  45 #define isdigit(c)      ((_ctype_+1)[(unsigned)(c)]&_N)
  46 #define isxdigit(c)     ((_ctype_+1)[(unsigned)(c)]&(_X|_N))
  47 #define isspace(c)      ((_ctype_+1)[(unsigned)(c)]&_S)
  48 #define ispunct(c)      ((_ctype_+1)[(unsigned)(c)]&_P)
  49 #define isalnum(c)      ((_ctype_+1)[(unsigned)(c)]&(_U|_L|_N))
  50 #define isprint(c)      ((_ctype_+1)[(unsigned)(c)]&(_P|_U|_L|_N|_B))
  51 #define isgraph(c)      ((_ctype_+1)[(unsigned)(c)]&(_P|_U|_L|_N))
  52 #define iscntrl(c)      ((_ctype_+1)[(unsigned)(c)]&_C)
  53 /* Non-gcc versions will get the library versions, and will be
  54    slightly slower */
  55 #ifdef __GNUC__
  56 # define toupper(c) \
  57         __extension__ ({ int __x = (c); islower(__x) ? (__x - 'a' + 'A') : __x;})
  58 # define tolower(c) \
  59         __extension__ ({ int __x = (c); isupper(__x) ? (__x - 'A' + 'a') : __x;})
  60 #endif
  61 #endif /* !__cplusplus */
  62
  63 #ifndef __STRICT_ANSI__
  64 #define isascii(c)      ((unsigned)(c)<=0177)
  65 #define toascii(c)      ((c)&0177)
  66 #endif
  67
  68 #ifdef __cplusplus
  69 }
  70 #endif
  71 #endif /* _CTYPE_H_ */