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

   1 /* { dg-do run } */
   2 /* { dg-options "-O" } */
   3
   4 #include <setjmp.h>
   5
   6 extern void abort (void);
   7
   8 jmp_buf buf;
   9
  10 void raise0(void)
  11 {
  12   __builtin_longjmp (buf, 1);
  13 }
  14
  15 int execute(int cmd)
  16 {
  17   int last = 0;
  18
  19   if (__builtin_setjmp (buf) == 0)
  20     while (1)
  21       {
  22         last = 1;
  23         raise0 ();
  24       }
  25
  26   if (last == 0)
  27     return 0;
  28   else
  29     return cmd;
  30 }
  31
  32 int main(void)
  33 {
  34   if (execute (1) == 0)
  35     abort ();
  36
  37   return 0;
  38 }