modernc.org/cc@v1.0.1/testdata/gcc-6.3.0/gcc/testsuite/gcc.c-torture/compile/callind.c (about)

     1  bar (foo, a)
     2       int (**foo) ();
     3  {
     4  
     5    (foo)[1] = bar;
     6  
     7    foo[a] (1);
     8  }