Reduces the magnitude of x, so the bits in the lower half of its significand
are all zero. Returns the amount which needs to be added to x to restore its
initial value; this amount will also have zeros in all bits in the lower half
of its significand.
Reduces the magnitude of x, so the bits in the lower half of its significand are all zero. Returns the amount which needs to be added to x to restore its initial value; this amount will also have zeros in all bits in the lower half of its significand.