1  /* { dg-do compile } */
       2  /* { dg-options "-Wall" } */
       3  
       4  typedef __SIZE_TYPE__ size_t;
       5  extern
       6  #ifdef __cplusplus
       7  "C"
       8  #endif
       9  void *memset (void *, int, size_t);
      10  char buf[1024];
      11  
      12  void
      13  foo ()
      14  {
      15    memset (buf, sizeof buf, 0);	/* { dg-warning ".memset. used with constant zero length parameter; this could be due to transposed parameters" } */
      16    memset (buf, sizeof buf, '\0'); /* { dg-warning ".memset. used with constant zero length parameter; this could be due to transposed parameters" } */
      17    memset (buf, sizeof buf, L'\0'); /* { dg-warning ".memset. used with constant zero length parameter; this could be due to transposed parameters" } */
      18    memset (buf, 1, 1 - 1);
      19    memset (buf, 1, 0 - 0);
      20    memset (buf, 0, 0);
      21    memset (buf, '\0', 0);
      22    memset (buf, L'\0', 0);
      23    memset (buf, 1 - 1, 0); /* { dg-warning ".memset. used with constant zero length parameter; this could be due to transposed parameters" } */
      24    memset (buf, 0 - 0, 0); /* { dg-warning ".memset. used with constant zero length parameter; this could be due to transposed parameters" } */
      25    memset (buf, sizeof buf, 0L);	/* { dg-warning ".memset. used with constant zero length parameter; this could be due to transposed parameters" } */
      26    memset (buf, sizeof buf, 0UL); /* { dg-warning ".memset. used with constant zero length parameter; this could be due to transposed parameters" } */
      27    memset (buf, sizeof buf, 0LL); /* { dg-warning ".memset. used with constant zero length parameter; this could be due to transposed parameters" } */
      28    memset (buf, sizeof buf, 0ULL); /* { dg-warning ".memset. used with constant zero length parameter; this could be due to transposed parameters" } */
      29    memset (buf, sizeof buf, (int) 0);
      30    memset (buf, sizeof buf, -0);
      31  }