modernc.org/ccgo/v3@v3.16.14/lib/testdata/gcc-9.1.0/gcc/testsuite/gcc.c-torture/compile/struct-non-lval-3.c (about)

     1  /* Bug c/17855, using assignment for non-lvalue.  */
     2  struct foo {char x, y, z[2];};
     3  struct foo p, q;
     4  void bar(int baz)
     5  {
     6    (p = q).z[baz] = 1;
     7  }