gcc/testsuite/gcc.c-torture/execute/ieee/unsafe-fp-assoc.c

   1 #include <float.h>
   2
   3 extern void abort(void);
   4
   5 static const double C = DBL_MAX;
   6
   7 double foo(double x)
   8 {
   9         return ( ( (x * C) * C ) * C);
  10 }
  11
  12 int main ()
  13 {
  14   double d = foo (0.0);
  15   if (d != 0.0)
  16    abort ();
  17
  18   return 0;
  19 }