memcheck/tests/wcs.c

   1 // Uses various wchar_t * functions that have hand written SSE and/or AVX2
   2 // assembly implementations in glibc.
   3 // wcslen, wcscpy, wcscmp, wcsncmp, wcsrchr, wcschr.
   4
   5 #include <stdio.h>
   6 #include <stdlib.h>
   7 #include <wchar.h>
   8
   9 int main(int argc, char **argv)
  10 {
  11   wchar_t a[] = L"The spazzy orange tiger jumped over the tawny jaguar.";
  12   wchar_t *b, *c;
  13   wchar_t *d, *e;
  14
  15   size_t l = wcslen (a);
  16   fprintf (stderr, "wcslen: %zd\n", l); // wcslen: 53
  17
  18   b = (wchar_t *) malloc((l + 1) * sizeof (wchar_t));
  19   c = wcscpy (b, a);
  20
  21   fprintf (stderr, "wcscmp equal: %d\n", wcscmp (a, b)); // wcscmp equal: 0
  22   fprintf (stderr,
  23            "wcsncmp equal: %d\n", wcsncmp (a, b, l)); // wcsncmp equal: 0
  24
  25   d = wcsrchr (a, L'd');
  26   e = wcschr (a, L'd');
  27
  28   fprintf (stderr, "wcsrchr == wcschr: %d\n", d == e); // wcsrchr == wcschr: 1
  29
  30   free (c); // b == c
  31   return 0;
  32 }