static void Test1()
{
DecodedMessage dm = new DecodedMessage("0100010000111101");
//DecodedMessage dm = new DecodedMessage("0011111001001000");
CodedMessage cm = new CodedMessage(dm);
DecodedMessage dm_back = new DecodedMessage(cm);
Console.WriteLine(dm);
Console.WriteLine(cm);
Console.WriteLine(dm_back);
if (dm.ToString() == dm_back.ToString())
{
Console.WriteLine("All right!");
}
else
{
Console.WriteLine("Houston, we have a problem");
}
}
static void Test2()
{
DecodedMessage dm = new DecodedMessage("0");
Console.WriteLine(dm);
CodedMessage cm = new CodedMessage(dm);
Console.WriteLine(cm);
cm.MakeFault(0);
Console.WriteLine(cm);
DecodedMessage dm_back = new DecodedMessage(cm);
Console.WriteLine(dm_back);
if (dm.ToString() == dm_back.ToString())
{
Console.WriteLine("All right!");
}
else
{
Console.WriteLine("Houston, we have a problem");
}
}
public CodedMessage(DecodedMessage msg)
{
int len = msg.GetLength();
for (int i = 1; i <= len; i++)
{
if (IsPowerOfTwo(i))
{
len++;
}
}
bits = new int[len];
for (int i = 1, from = 0; i <= len; i++)
{
if (IsPowerOfTwo(i))
{
bits[i - 1] = 0;
}
else
{
bits[i - 1] = msg.GetBit(from++);
string bitStr = Convert.ToString(i, 2);
for (int k = 0; k < bitStr.Length; k++)
{
if (bitStr[k] == '0')
{
continue;
}
int power = bitStr.Length - k - 1;
int index = (int)Math.Pow(2, power) - 1;
bits[index] += bits[i - 1];
bits[index] %= 2;
}
}
}
}
