Ejemplo n.º 1
0
long double
__ieee754_scalbl (long double x, long double fn)
{
  if (__builtin_expect (__isnanl (x), 0))
    return x * fn;
  if (__builtin_expect (!__finitel (fn), 0))
    {
      if (__isnanl (fn) || fn > 0.0L)
	return x * fn;
      if (x == 0.0L)
	return x;
      return x / -fn;
    }
  if (__builtin_expect ((long double) (int) fn != fn, 0))
    return invalid_fn (x, fn);

  return __scalbnl (x, (int) fn);
}
Ejemplo n.º 2
0
long double
__ieee754_scalbl (long double x, long double fn)
{
  if (__glibc_unlikely (isnan (x)))
    return x * fn;
  if (__glibc_unlikely (!isfinite (fn)))
    {
      if (isnan (fn) || fn > 0.0L)
	return x * fn;
      if (x == 0.0L)
	return x;
      return x / -fn;
    }
  if (__glibc_unlikely (fabsl (fn) >= 0x1p31L || (long double) (int) fn != fn))
    return invalid_fn (x, fn);

  return __scalbnl (x, (int) fn);
}
Ejemplo n.º 3
0
long double
__ieee754_scalbl (long double x, long double fn)
{
  if (__glibc_unlikely (__isnanl (x)))
    return x * fn;
  if (__glibc_unlikely (!__finitel (fn)))
    {
      if (__isnanl (fn) || fn > 0.0L)
	return x * fn;
      if (x == 0.0L)
	return x;
      return x / -fn;
    }
  if (__glibc_unlikely ((long double) (int) fn != fn))
    return invalid_fn (x, fn);

  return __scalbnl (x, (int) fn);
}