1./* XPG4 version of wcstok call */

      #include <wchar.h>
      #include <string.h>
      #include <stdio.h>

      main()
      {
          wchar_t str[] = L"...ab..cd,,ef.hi";

          printf("|%S|\n", wcstok(str, L"."));
          printf("|%S|\n", wcstok(NULL, L","));
          printf("|%S|\n", wcstok(NULL, L",."));
          printf("|%S|\n", wcstok(NULL, L",."));
      }

    2./* ISO C version of wcstok call */

      #include <wchar.h>
      #include <string.h>
      #include <stdio.h>

      main()
      {
          wchar_t str[] = L"...ab..cd,,ef.hi";
          wchar_t *savptr = NULL;

          printf("|%S|\n", wcstok(str, L".", &savptr));
          printf("|%S|\n", wcstok(NULL, L",", &savptr));
          printf("|%S|\n", wcstok(NULL, L",.", &savptr));
          printf("|%S|\n", wcstok(NULL, L",.", &savptr));
      }

    Running this example produces the following results:

    $ $ RUN WCSTOK_EXAMPLE
    |ab|
    |.cd|
    |ef|
    |hi|
    $