modernc.org/ccgo/v3@v3.16.14/lib/testdata/gcc-9.1.0/gcc/testsuite/gcc.c-torture/compile/990801-1.c (about)

     1  extern int getch();
     2  extern int class();
     3  
     4  int
     5  token()
     6  {
     7      int state = 1;
     8  
     9      while (1) {
    10  	int c=0;
    11  	c = getch();
    12  	switch (state) {
    13  	case 1: break;
    14  	case 4: break;
    15  	case 5: break;
    16  	case 6: 
    17              {
    18  	        switch (class(c)) {
    19  	        default: break;
    20  	        }
    21  	    } break;
    22  	case 7:	break;
    23  	}
    24      }
    25  }
    26