gcc/testsuite/gcc.dg/rs6000-ldouble-2.c

   1 /* { dg-do run { target powerpc*-*-darwin* powerpc*-*-aix* powerpc64-*-linux rs6000-*-* } } */
   2 /* { dg-options "-mlong-double-128" } */
   3
   4 /* Check that LDBL_EPSILON is right for 'long double'.  */
   5
   6 #include <float.h>
   7
   8 extern void abort (void);
   9
  10 int main(void)
  11 {
  12   volatile long double ee = 1.0;
  13   long double eps = ee;
  14   while (ee + 1.0 != 1.0)
  15     {
  16       eps = ee;
  17       ee = eps / 2;
  18     }
  19   if (eps != LDBL_EPSILON)
  20     abort ();
  21   return 0;
  22 }