#include <stdio.h>

#include <stdlib.h>

#include <libc-diag.h>

int

main(int arc, char *argv[])

{

  int res;

  unsigned int val;

  FILE *fp = fopen ("/dev/null", "r");

  val = 0;

  res = fscanf(fp, "%n", &val;;

  printf("Result of fscanf %%n = %d\n", res);

  printf("Scanned format = %d\n", val);

  /* We're testing exactly the case the warning is for.  */

  DIAG_PUSH_NEEDS_COMMENT;

  DIAG_IGNORE_NEEDS_COMMENT (4.9, "-Wformat-zero-length");

  res = fscanf(fp, "");

  DIAG_POP_NEEDS_COMMENT;

  printf("Result of fscanf \"\" = %d\n", res);

  if (res != 0)

    abort ();

  res = fscanf(fp, "BLURB");

  printf("Result of fscanf \"BLURB\" = %d\n", res);

  if (res >= 0)

    abort ();

  fclose (fp);

  return 0;

  return 0;

}