strspn.c 478 B

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  1. /*
  2. * Copyright (c) 2019 Peter Bigot Consulting, LLC
  3. *
  4. * SPDX-License-Identifier: Apache-2.0
  5. */
  6. #include <string.h>
  7. #include <string.h>
  8. size_t strspn(const char *s,
  9. const char *accept)
  10. {
  11. const char *ins = s;
  12. while ((*s != '\0') && (strchr(accept, *s) != NULL)) {
  13. ++s;
  14. }
  15. return s - ins;
  16. }
  17. size_t strcspn(const char *s,
  18. const char *reject)
  19. {
  20. const char *ins = s;
  21. while ((*s != '\0') && (strchr(reject, *s) == NULL)) {
  22. ++s;
  23. }
  24. return s - ins;
  25. }