1  /* { dg-do compile } */
       2  /* { dg-options "-O" } */
       3  int func()
       4  {
       5    const int *arr;
       6    const int arr2[5];
       7    arr[0] = 1; /* { dg-error "assignment of read-only location" "*(arr)" } */
       8    arr[1] = 1; /* { dg-error "assignment of read-only location" "*(arr + 4u)" } */
       9    arr2[0] = 1; /* { dg-error "assignment of read-only location" "arr2\[0\]" } */
      10    arr2[1] = 1; /* { dg-error "assignment of read-only location" "arr2\[1\]" } */
      11  }