package DNA;

public class UInt256 extends UIntBase implements Comparable<UInt256> {

public static final UInt256 ZERO = new UInt256();

public UInt256() {

this(null);

}

public UInt256(byte[] value) {

super(32, value);

}

@Override

public int compareTo(UInt256 other) {

byte[] x = this.data_bytes;

byte[] y = other.data_bytes;

for (int i = x.length - 1; i >= 0; i--) {

int r = Byte.toUnsignedInt(x[i]) - Byte.toUnsignedInt(y[i]);

if (r != 0) {

return r;

}

}

return 0;

}

public static UInt256 parse(String s) {

if (s == null) {

throw new NullPointerException();

}

if (s.startsWith("0x")) {

s = s.substring(2);

}

if (s.length() != 64) {

throw new IllegalArgumentException(String.format("字符串\"{0}\"无法识别为正确的UInt256。", s));

}

byte[] v = Helper.hexToBytes(s);

// return new UInt256(Helper.reverse(v));

return new UInt256(v);

}

public static boolean tryParse(String s, UInt256 result) {

try {

UInt256 v = parse(s);

result.data_bytes = v.data_bytes;

return true;

} catch (Exception e) {

return false;

}

}

}