sample/atou.c

   1 static inline int
   2 isdigit(int ch)
   3 {
   4   return (ch >= '0') && (ch <= '9');
   5 }
   6
   7 unsigned int atou(const char *s)
   8 {
   9   unsigned int i = 0;
  10   while (isdigit(*s))
  11     i = i*10 + (*s++ - '0');
  12   return i;
  13 }