modernc.org/cc@v1.0.1/testdata/gcc-6.3.0/gcc/testsuite/gcc.c-torture/compile/zero-strct-1.c (about)

     1  typedef struct { } empty_t;
     2  
     3  f ()
     4  {
     5    empty_t i;
     6    bar (i);
     7  }