public class BitTools {
	
	/**
	@return	the ceiling of the binary logarithm of x
	*/
	public static final int lb(int x) {
		int lb;
		for (lb = 0; x > 0; ++lb, x = x >> 1);
		return lb;
	}
	
	private BitTools() {} // this class is not meant to be instantiated
	
}