strspn.c 223 B

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  1. /* $Id$ */
  2. int
  3. strspn(string, in)
  4. char *string;
  5. char *in;
  6. {
  7. register char *s1, *s2;
  8. for (s1 = string; *s1; s1++) {
  9. for (s2 = in; *s2 && *s2 != *s1; s2++) /* nothing */ ;
  10. if (! *s2) break;
  11. }
  12. return s1 - string;
  13. }