/**
* Performs the logical XOR of this {@code BitSet} with another {@code BitSet}.
* The values of this {@code BitSet} are changed accordingly.
*
* @param bs
* {@code BitSet} to XOR with.
* @see #or
* @see #and
*/
public void xor(BitSet bs)
{
int bsActualLen = bs.getActualArrayLength();
if (bsActualLen > bits.Length) {
long[] tempBits = new long[bsActualLen];
java.lang.SystemJ.arraycopy(bs.bits, 0, tempBits, 0, bs.actualArrayLength);
for (int i = 0; i < actualArrayLength; i++) {
tempBits[i] ^= bits[i];
}
bits = tempBits;
actualArrayLength = bsActualLen;
isLengthActual = !((actualArrayLength > 0) && (bits[actualArrayLength - 1] == 0));
} else {
long[] bsBits = bs.bits;
for (int i = 0; i < bsActualLen; i++) {
bits[i] ^= bsBits[i];
}
if (bsActualLen > actualArrayLength) {
actualArrayLength = bsActualLen;
isLengthActual = true;
}
}
needClear();
}
/**
* Clears all bits in the receiver which are also set in the parameter
* {@code BitSet}. The values of this {@code BitSet} are changed accordingly.
*
* @param bs
* {@code BitSet} to ANDNOT with.
*/
public void andNot(BitSet bs)
{
long[] bsBits = bs.bits;
if (!needClearJ) {
return;
}
int range = actualArrayLength < bs.actualArrayLength ? actualArrayLength
: bs.actualArrayLength;
for (int i = 0; i < range; i++) {
bits[i] &= ~bsBits[i];
}
if (actualArrayLength < range) {
actualArrayLength = range;
}
isLengthActual = !((actualArrayLength > 0) && (bits[actualArrayLength - 1] == 0));
}
/**
* Checks if these two {@code BitSet}s have at least one bit set to true in the same
* position.
*
* @param bs
* {@code BitSet} used to calculate the intersection.
* @return {@code true} if bs intersects with this {@code BitSet},
* {@code false} otherwise.
*/
public bool intersects(BitSet bs)
{
long[] bsBits = bs.bits;
int length1 = actualArrayLength, length2 = bs.actualArrayLength;
if (length1 <= length2) {
for (int i = 0; i < length1; i++) {
if ((bits[i] & bsBits[i]) != 0L) {
return true;
}
}
} else {
for (int i = 0; i < length2; i++) {
if ((bits[i] & bsBits[i]) != 0L) {
return true;
}
}
}
return false;
}
/**
* Performs the logical AND of this {@code BitSet} with another
* {@code BitSet}. The values of this {@code BitSet} are changed accordingly.
*
* @param bs
* {@code BitSet} to AND with.
* @see #or
* @see #xor
*/
public void and(BitSet bs)
{
long[] bsBits = bs.bits;
if (!needClearJ) {
return;
}
int length1 = actualArrayLength, length2 = bs.actualArrayLength;
if (length1 <= length2) {
for (int i = 0; i < length1; i++) {
bits[i] &= bsBits[i];
}
} else {
for (int i = 0; i < length2; i++) {
bits[i] &= bsBits[i];
}
for (int i = length2; i < length1; i++) {
bits[i] = 0;
}
actualArrayLength = length2;
}
isLengthActual = !((actualArrayLength > 0) && (bits[actualArrayLength - 1] == 0));
}
