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

     1  char *
     2  f (char *s, unsigned int i)
     3  {
     4    return &s[i + 3 - 1];
     5  }
     6  
     7  main ()
     8  {
     9    char *str = "abcdefghijkl";
    10    char *x2 = f (str, 12);
    11    if (str + 14 != x2)
    12      abort ();
    13    exit (0);
    14  }