package com.jaalee.sdk.internal;
/**
 * @author JAALEE, Inc
 * 
 * @Support dev@jaalee.com
 * @Sales: sales@jaalee.com
 * 
 * @see http://www.jaalee.com/
 */

public final class UnsignedInts
{
	static final long INT_MASK = 4294967295L;

	static int flip(int value)
	{
		return value ^ 0x80000000;
	}

	public static long toLong(int value)
	{
		return value & 0xFFFFFFFF;
	}

	public static String join(String separator, int[] array)
	{
		Preconditions.checkNotNull(separator);
		if (array.length == 0) {
			return "";
		}

		StringBuilder builder = new StringBuilder(array.length * 5);
		builder.append(toString(array[0]));
		for (int i = 1; i < array.length; i++) {
			builder.append(separator).append(toString(array[i]));
		}
		return builder.toString();
	}

	public static int divide(int dividend, int divisor)
	{
		return (int)(toLong(dividend) / toLong(divisor));
	}

	public static int remainder(int dividend, int divisor)
	{
		return (int)(toLong(dividend) % toLong(divisor));
	}

	public static int parseUnsignedInt(String s)
	{
		return parseUnsignedInt(s, 10);
	}

	public static int parseUnsignedInt(String string, int radix)
	{
		Preconditions.checkNotNull(string);
		long result = Long.parseLong(string, radix);
		if ((result & 0xFFFFFFFF) != result) {
			throw new NumberFormatException(new StringBuilder().append("Input ").append(string).append(" in base ").append(radix).append(" is not in the range of an unsigned integer").toString());
		}

		return (int)result;
	}

	public static String toString(int x)
	{
		return toString(x, 10);
	}

	public static String toString(int x, int radix)
	{
		long asLong = x & 0xFFFFFFFF;
		return Long.toString(asLong, radix);
	}
}