gcc/testsuite/gcc.c-torture/execute/960311-1.c

   1 #include <stdio.h>
   2
   3 void abort (void);
   4 void exit (int);
   5
   6 #ifdef DEBUG
   7 #define abort() printf ("error, line %d\n", __LINE__)
   8 #endif
   9
  10 int count;
  11
  12 void a1() { ++count; }
  13
  14 void
  15 b (unsigned char data)
  16 {
  17   if (data & 0x80) a1();
  18   data <<= 1;
  19
  20   if (data & 0x80) a1();
  21   data <<= 1;
  22
  23   if (data & 0x80) a1();
  24 }
  25
  26 int
  27 main (void)
  28 {
  29   count = 0;
  30   b (0);
  31   if (count != 0)
  32     abort ();
  33
  34   count = 0;
  35   b (0x80);
  36   if (count != 1)
  37     abort ();
  38
  39   count = 0;
  40   b (0x40);
  41   if (count != 1)
  42     abort ();
  43
  44   count = 0;
  45   b (0x20);
  46   if (count != 1)
  47     abort ();
  48
  49   count = 0;
  50   b (0xc0);
  51   if (count != 2)
  52     abort ();
  53
  54   count = 0;
  55   b (0xa0);
  56   if (count != 2)
  57     abort ();
  58
  59   count = 0;
  60   b (0x60);
  61   if (count != 2)
  62     abort ();
  63
  64   count = 0;
  65   b (0xe0);
  66   if (count != 3)
  67     abort ();
  68
  69 #ifdef DEBUG
  70   printf ("Done.\n");
  71 #endif
  72   exit (0);
  73 }