#include "libm.h"
+#if FLT_EVAL_METHOD==0 || FLT_EVAL_METHOD==1
+#define EPS DBL_EPSILON
+#elif FLT_EVAL_METHOD==2
+#define EPS LDBL_EPSILON
+#endif
+static const double_t toint = 1/EPS;
+
double round(double x)
{
union {double f; uint64_t i;} u = {x};
x = -x;
if (e < 0x3ff-1) {
/* raise inexact if x!=0 */
- FORCE_EVAL(x + 0x1p52);
+ FORCE_EVAL(x + toint);
return 0*u.f;
}
- y = (double)(x + 0x1p52) - 0x1p52 - x;
+ y = x + toint - toint - x;
if (y > 0.5)
y = y + x - 1;
else if (y <= -0.5)