sdcc/support/regression/tests/bug-2859.c

   1 /* bug-2859.c
   2    Cannot compare function to 0.
   3  */
   4
   5 #include <testfwk.h>
   6
   7 void
   8 a(void)
   9 {
  10   /* empty */
  11 }
  12
  13 typedef void (*vf)(void);
  14
  15 void
  16 testBug(void)
  17 {
  18   /* previously broken */
  19   ASSERT(a != 0);
  20   ASSERT(a != ((void *)0));
  21   ASSERT(&a != 0);
  22   ASSERT(&a != ((void *)0));
  23   ASSERT(!!a);
  24   /* previously working */
  25   ASSERT((vf)a);
  26   ASSERT(((void *)a) != 0);
  27   ASSERT((_Bool)a);
  28 }