gcc/testsuite/gcc.c-torture/execute/20020216-1.c

   1 /* PR c/3444
   2    This used to fail because bitwise xor was improperly computed in char type
   3    and sign extended to int type.  */
   4
   5 extern void abort ();
   6 extern void exit (int);
   7
   8 signed char c = (signed char) 0xffffffff;
   9
  10 int foo (void)
  11 {
  12   return (unsigned short) c ^ (signed char) 0x99999999;
  13 }
  14
  15 int main (void)
  16 {
  17   if ((unsigned char) -1 != 0xff
  18       || sizeof (short) != 2
  19       || sizeof (int) != 4)
  20     exit (0);
  21   if (foo () != (int) 0xffff0066)
  22     abort ();
  23   exit (0);
  24 }