1: #ifndef _CTYPE_H_
   2: #define _CTYPE_H_
   3: 
   4: #include "_ansi.h"
   5: 
   6: _BEGIN_STD_C
   7: 
   8: int _EXFUN(isalnum, (int __c));
   9: int _EXFUN(isalpha, (int __c));
  10: int _EXFUN(iscntrl, (int __c));
  11: int _EXFUN(isdigit, (int __c));
  12: int _EXFUN(isgraph, (int __c));
  13: int _EXFUN(islower, (int __c));
  14: int _EXFUN(isprint, (int __c));
  15: int _EXFUN(ispunct, (int __c));
  16: int _EXFUN(isspace, (int __c));
  17: int _EXFUN(isupper, (int __c));
  18: int _EXFUN(isxdigit,(int __c));
  19: int _EXFUN(tolower, (int __c));
  20: int _EXFUN(toupper, (int __c));
  21: 
  22: #ifndef __STRICT_ANSI__
  23: int _EXFUN(isblank, (int __c));
  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: _END_STD_C
  69: 
  70: #endif /* _CTYPE_H_ */
  71: