public static int Pow2RoundUp(int x)
{
if ((x < 0) || (x > 0x40000000))
{
ExceptionUtil.ThrowArgumentOutOfRangeException("x", "must be in the range [1, 2^30]");
}
return((int)UInt32Util.Pow2RoundUp((uint)x));
}
public static int Pow2RoundDown(int x)
{
if (x < 0)
{
ExceptionUtil.ThrowArgumentOutOfRangeException("x", "must be non-negative");
}
return((int)UInt32Util.Pow2RoundDown((uint)x));
}
public static int Log2(int x)
{
if (x <= 0)
{
ExceptionUtil.ThrowArgumentOutOfRangeException("x", "must be positive");
}
if (x == 1)
{
return(0);
}
return(UInt32Util.HighestBit((uint)x));
}
public static int RotateRight(int x, int count) => ((int)UInt32Util.RotateRight((uint)x, count));
public static int HighestBit(int x) => UInt32Util.HighestBit((uint)x);