modernc.org/ccgo/v3@v3.16.14/lib/testdata/gcc-9.1.0/gcc/testsuite/gcc.c-torture/execute/20080222-1.c (about)

     1  extern void abort (void);
     2  
     3  struct container
     4  {
     5    unsigned char data[1];
     6  };
     7  
     8  unsigned char space[6] = {1, 2, 3, 4, 5, 6};
     9  
    10  int
    11  foo (struct container *p)
    12  {
    13    return p->data[4];
    14  }
    15  
    16  int
    17  main ()
    18  {
    19    if (foo ((struct container *) space) != 5)
    20      abort ();
    21    return 0;
    22  }