int
MathUtilities::nearestPowerOfTwo(int x)
{
if (isPowerOfTwo(x)) return x;
int n0 = previousPowerOfTwo(x), n1 = nextPowerOfTwo(x);
if (x - n0 < n1 - x) return n0;
else return n1;
}
inline unsigned int nearestPowerOfTwo(unsigned int v)
{
const unsigned int np2 = nextPowerOfTwo(v);
const unsigned int pp2 = previousPowerOfTwo(v);
if (np2 - v <= v - pp2)
{
return np2;
}
else
{
return pp2;
}
}