sample/atou.c

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