src/string/strtok_r.c

   1 #include <string.h>
   2
   3 char *strtok_r(char *restrict s, const char *restrict sep, char **restrict p)
   4 {
   5         if (!s && !(s = *p)) return NULL;
   6         s += strspn(s, sep);
   7         if (!*s) return *p = 0;
   8         *p = s + strcspn(s, sep);
   9         if (**p) *(*p)++ = 0;
  10         else *p = 0;
  11         return s;
  12 }