LXR linux/arch/x86/boot/ctype.h

   1#ifndef BOOT_CTYPE_H
   2#define BOOT_CTYPE_H
   3
   4static inline int isdigit(int ch)
   5{
   6        return (ch >= '0') && (ch <= '9');
   7}
   8
   9static inline int isxdigit(int ch)
  10{
  11        if (isdigit(ch))
  12                return true;
  13
  14        if ((ch >= 'a') && (ch <= 'f'))
  15                return true;
  16
  17        return (ch >= 'A') && (ch <= 'F');
  18}
  19
  20#endif
  21