gcc/testsuite/gcc.dg/torture/pr78731.c

   1 /* { dg-do run } */
   2
   3 #include <stdio.h>
   4 #include <stdlib.h>
   5
   6 #define GENERAL 1
   7 #define BRACKETS 2
   8 #define QUOTES 3
   9
  10 void __attribute__((noinline,noclone))
  11 foo(char *qb, char* into)
  12 {
  13   int state = QUOTES;
  14   int save_state = BRACKETS;
  15
  16   while (qb)
  17     {
  18       switch (state)
  19         {
  20         case BRACKETS:
  21           exit(0);
  22         case GENERAL:
  23           abort ();
  24         case QUOTES:
  25           state = save_state;
  26           save_state = GENERAL;
  27           break;
  28         default: ;
  29         }
  30       printf("State %d btw GENERAL %d\n", state, GENERAL);
  31     }
  32   abort ();
  33 }
  34
  35 int main()
  36 {
  37   char *b = "123";
  38   char out[4];
  39   foo(b, out);
  40   return 0;
  41 }