gcc/testsuite/gcc.dg/cleanup-3.c

   1 /* { dg-do run } */
   2 /* { dg-options "" } */
   3 /* Verify that the cleanup handler receives the proper contents
   4    of the variable.  */
   5
   6 extern void exit(int);
   7 extern void abort(void);
   8
   9 static int expected;
  10
  11 static void
  12 handler(int *p)
  13 {
  14   if (*p != expected)
  15     abort ();
  16 }
  17
  18 static void __attribute__((noinline))
  19 bar(void)
  20 {
  21 }
  22
  23 static void doit(int x, int y)
  24 {
  25   int r __attribute__((cleanup (handler)));
  26   if (x < y)
  27     {
  28       r = 0;
  29       return;
  30     }
  31
  32   bar();
  33   r = x + y;
  34 }
  35
  36 int main()
  37 {
  38   expected = 0;
  39   doit (1, 2);
  40
  41   expected = 3;
  42   doit (2, 1);
  43
  44   return 0;
  45 }