modernc.org/cc@v1.0.1/testdata/gcc-6.3.0/gcc/testsuite/gcc.c-torture/compile/20011106-1.c (about)

     1  /* Test that functions passed to the comma operator are correctly converted
     2     to pointers.  */
     3  /* Origin: Joseph Myers <jsm28@cam.ac.uk>.  */
     4  
     5  void foo (void);
     6  void (*fp) (void);
     7  char x[sizeof (1, foo) == sizeof (fp) ? 1 : -1];