gcc/testsuite/gcc.c-torture/execute/ieee/20010114-2.c

   1 extern void exit (int);
   2 extern void abort (void);
   3
   4 float
   5 rintf (float x)
   6 {
   7   static const float TWO23 = 8388608.0;
   8
   9   if (__builtin_fabs (x) < TWO23)
  10     {
  11       if (x > 0.0)
  12         {
  13           x += TWO23;
  14           x -= TWO23;
  15         }
  16       else if (x < 0.0)
  17         {
  18           x = TWO23 - x;
  19           x = -(x - TWO23);
  20         }
  21     }
  22
  23   return x;
  24 }
  25
  26 int main (void)
  27 {
  28   if (rintf (-1.5) != -2.0)
  29     abort ();
  30   exit (0);
  31 }