1  /* Derived from the test case in BZ #2337.  */
       2  #include <errno.h>
       3  #include <error.h>
       4  #include <fcntl.h>
       5  #include <locale.h>
       6  #include <stdio.h>
       7  #include <stdlib.h>
       8  #include <string.h>
       9  #include <unistd.h>
      10  #include <wchar.h>
      11  
      12  
      13  static char buf[512] __attribute__ ((aligned (4096)));
      14  
      15  
      16  static int
      17  do_test (void)
      18  {
      19    setlocale (LC_ALL, "de_DE.UTF-8");
      20  
      21    FILE *fp = fdopen (dup (STDOUT_FILENO), "a");
      22    if (fp == NULL)
      23      error (EXIT_FAILURE, errno, "fdopen(,\"a\")");
      24  
      25    setvbuf (fp, buf, _IOFBF, sizeof (buf));
      26  
      27    /* fwprintf to unbuffered stream.   */
      28    fwprintf (fp, L"hello.\n");
      29  
      30    fclose (fp);
      31  
      32    /* touch my buffer */
      33    buf[45] = 'a';
      34  
      35    return 0;
      36  }
      37  
      38  #define TEST_FUNCTION do_test ()
      39  #include "../test-skeleton.c"