/// <summary>
/// Add to the current bitmap all integers in [rangeStart,rangeEnd).
/// </summary>
/// <param name="rangeStart">inclusive beginning of range</param>
/// <param name="rangeEnd">exclusive ending of range</param>
public void add(int rangeStart, int rangeEnd)
{
if (rangeStart >= rangeEnd)
return; // empty range
ushort hbStart = Utility.GetHighBits(rangeStart);
ushort lbStart = Utility.GetLowBits(rangeStart);
ushort hbLast = Utility.GetHighBits(rangeEnd - 1);
ushort lbLast = Utility.GetLowBits(rangeEnd - 1);
for (ushort hb = hbStart; hb <= hbLast; ++hb)
{
// first container may contain partial range
ushort containerStart = 0;
if (hb == hbStart) { containerStart = lbStart; }
// last container may contain partial range
ushort containerLast = (hb == hbLast) ? lbLast : ushort.MaxValue;
int containerIndex = containers.getIndex(hb);
if (containerIndex >= 0)
{
Container c = containers.getContainerAtIndex(containerIndex).add(
containerStart, (ushort)(containerLast + 1));
containers.setContainerAtIndex(containerIndex, c);
}
else {
Container newContainer = new ArrayContainer(100);
newContainer = newContainer.add(lbStart, lbLast);
containers.insertNewKeyValueAt(-containerIndex - 1, hb, newContainer);
}
}
}
public void loadData(ArrayContainer arrayContainer)
{
this.cardinality = arrayContainer.cardinality;
for (int k = 0; k < arrayContainer.cardinality; ++k)
{
ushort x = arrayContainer.content[k];
bitmap[x / 64] |= (1L << x);
}
}
/// <summary>
/// Deserialize a container from binary format, as written by the Serialize method, minus the first 32 bits giving the cardinality.
/// </summary>
/// <param name="reader">The reader to deserialize from.</param>
/// <returns>The first container represented by reader.</returns>
public static ArrayContainer Deserialize(BinaryReader reader, int cardinality)
{
ArrayContainer container = new ArrayContainer(cardinality);
container.cardinality = cardinality;
for(int i = 0; i < cardinality; i++)
{
container.content[i] = (ushort) reader.ReadInt16();
}
return container;
}
/// <summary>
/// Returns the elements of this ArrayContainer that are not in the
/// other ArrayContainer.
/// </summary>
/// <param name="x">the other ArrayContainer</param>
/// <returns>A new container with the differences</returns>
public override Container andNot (ArrayContainer x)
{
int desiredCapacity = this.getCardinality();
var answer = new ArrayContainer(desiredCapacity);
// Compute the cardinality of the new container
answer.cardinality = Utility.unsignedDifference(this.content,
desiredCapacity,
x.content,
x.getCardinality(),
answer.content);
return answer;
}
public void add(int x)
{
ushort highBits = Utility.GetHighBits(x);
int containerIndex = containers.getIndex(highBits);
if (containerIndex >= 0)
// a container exists at this index already.
// find the right container, get the low order bits to add to the container and add them
{
containers.setContainerAtIndex(containerIndex, containers.getContainerAtIndex(containerIndex).add(Utility.GetLowBits(x))
);
}
else
{
// no container exists for this index
// create a new ArrayContainer, since it will only hold one integer to start
// get the low order bits and att to the newly created container
// add the newly created container to the array of containers
ArrayContainer newac = new ArrayContainer();
containers.insertNewKeyValueAt(-containerIndex - 1, highBits, newac.add(Utility.GetLowBits(x)));
}
}
public override Container and(BitsetContainer value2)
{
int newCardinality = 0;
for (int k = 0; k < this.bitmap.Length; ++k) {
newCardinality += Utility.longBitCount(
this.bitmap[k] & value2.bitmap[k]
);
}
if (newCardinality > ArrayContainer.DEFAULT_MAX_SIZE) {
BitsetContainer answer = new BitsetContainer();
for (int k = 0; k < answer.bitmap.Length; ++k) {
answer.bitmap[k] = this.bitmap[k]
& value2.bitmap[k];
}
answer.cardinality = newCardinality;
return answer;
}
ArrayContainer ac = new ArrayContainer(newCardinality);
Utility.fillArrayAND(ref ac.content, this.bitmap, value2.bitmap);
ac.cardinality = newCardinality;
return ac;
}
/// <summary> /// Computes the bitwise OR of this container with another (union). This /// container as well as the provided container are left unaffected. /// </summary> /// <param name="x">Other container</param> /// <returns>Aggregated container</returns> public abstract Container Or(ArrayContainer x);
public override Container Or(ArrayContainer x)
{
throw new NotImplementedException();
}
public override Container or(ArrayContainer value2)
{
BitsetContainer answer = (BitsetContainer) clone();
int c = value2.cardinality;
for (int k = 0; k < c ; ++k) {
ushort v = value2.content[k];
int i = v >> 6;
long w = answer.bitmap[i];
long aft = w | (1L << v);
answer.bitmap[i] = aft;
//if (USE_BRANCHLESS) {
answer.cardinality += (int)((w - aft) >> 63);
//} else {
// if (w != aft)
// answer.cardinality++;
//}
}
return answer;
}
/// <summary>
/// Returns the elements of this ArrayContainer that are not in the
/// other BitSetContainer.
/// </summary>
/// <param name="x">the BitSetContainer to compare against</param>
/// <returns>A new container with the differences</returns>
public override Container andNot(BitsetContainer x)
{
var answer = new ArrayContainer(content.Length);
int pos = 0;
for (int k = 0; k < cardinality; ++k)
{
ushort val = this.content[k];
if (!x.contains(val))
answer.content[pos++] = val;
}
answer.cardinality = pos;
return answer;
}
/// <summary>
/// Returns true if the current container intersects the other container.
/// </summary>
/// <param name="x">Other container</param>
/// <returns>Whether they intersect</returns>
public override bool Intersects(ArrayContainer x)
{
throw new NotImplementedException();
}
/// <summary>
/// If the given index is not in the set add it, otherwise remove it.
/// </summary>
/// <param name="index">The index to flip</param>
public void Flip(int x)
{
ushort hb = Utility.GetHighBits(x);
int i = containers.GetIndex(hb);
if (i >= 0)
{
Container c = containers.GetContainerAtIndex(i).Flip(Utility.GetLowBits(x));
if (c.GetCardinality() > 0)
{
containers.SetContainerAtIndex(i, c);
}
else
{
containers.RemoveAtIndex(i);
}
}
else
{
ArrayContainer newac = new ArrayContainer();
containers.InsertNewKeyValueAt(-i - 1, hb, newac.Add(Utility.GetLowBits(x)));
}
}
/// <summary>
/// Copies the data to an array container
/// </summary>
/// <returns>The array container</returns>
public ArrayContainer ToArrayContainer()
{
ArrayContainer ac = new ArrayContainer(Cardinality);
ac.LoadData(this);
return ac;
}
/// <summary>
/// Computes the in-place bitwise OR of this container with another
/// (union). The current container is generally modified, whereas the
/// provided container(x) is unaffected.May generate a new container.
/// </summary>
/// <param name="x">Other container</param>
/// <returns>Aggregated container</returns>
public override Container IOr(ArrayContainer x)
{
return this.Or(x);
}
/// <summary> /// Computes the bitwise AND of this container with another /// (intersection). This container as well as the provided container are /// left unaffected. /// </summary> /// <param name="x">Other container</param> /// <returns>Aggregated container</returns> public abstract Container And(ArrayContainer x);
/// <summary>
/// Returns the elements of this ArrayContainer that are not in the
/// other ArrayContainer.
/// </summary>
/// <param name="x">the other ArrayContainer</param>
/// <returns>The modified container</returns>
public override Container IAndNot(ArrayContainer x)
{
this.Cardinality = Utility.UnsignedDifference(this.Content,
this.GetCardinality(),
x.Content,
x.GetCardinality(),
this.Content);
return this;
}
/// <summary>
/// Computes the in-place bitwise AND of this container with another
/// (intersection). The current container is generally modified, whereas
/// the provided container (x) is unaffected. May generate a new container.
/// </summary>
/// <param name="x">Other container</param>
/// <returns>Aggregated container</returns>
public override Container IAnd(ArrayContainer other)
{
Cardinality = Utility.UnsignedIntersect2by2(Content,
GetCardinality(),
other.Content,
other.GetCardinality(),
Content);
return this;
}
/// <summary>
/// Computes the in-place bitwise OR of this container with another
/// (union). The current container is generally modified, whereas the
/// provided container(x) is unaffected.May generate a new container.
/// </summary>
/// <param name="x">Other container</param>
/// <returns>Aggregated container</returns>
public override Container IOr(ArrayContainer x)
{
return(this.Or(x));
}
/// <summary>
/// Returns the elements of this BitsetContainer that are not in the
/// other BitsetContainer. Depending on the cardinality of the result,
/// this will either modify the container in place or return a new ArrayContainer.
/// </summary>
/// <param name="x">the other BitsetContainer</param>
/// <returns>The current container, modified the differences</returns>
public override Container IAndNot(BitsetContainer x)
{
int newCardinality = 0;
for (int k = 0; k < this.Bitmap.Length; ++k)
{
newCardinality += Utility.LongBitCount(this.Bitmap[k] & (~x.Bitmap[k]));
}
if (newCardinality > ArrayContainer.DEFAULT_MAX_SIZE)
{
for (int k = 0; k < this.Bitmap.Length; ++k)
{
this.Bitmap[k] = this.Bitmap[k] & (~x.Bitmap[k]);
}
this.Cardinality = newCardinality;
return this;
}
ArrayContainer ac = new ArrayContainer(newCardinality);
Utility.FillArrayANDNOT(ac.Content, this.Bitmap, x.Bitmap);
ac.Cardinality = newCardinality;
return ac;
}
/// <summary>
/// Returns the elements of this BitsetContainer that are not in the
/// ArrayContainer by modifying the current container in place.
/// </summary>
/// <param name="x">the ArrayContainer to compare against</param>
/// <returns>A new container with the differences</returns>
public override Container iandNot(ArrayContainer x)
{
for (int k = 0; k < x.cardinality; ++k)
{
this.remove(x.content[k]);
}
if (cardinality <= ArrayContainer.DEFAULT_MAX_SIZE)
return this.toArrayContainer();
return this;
}
/// <summary>
/// Computes the bitwise OR of this container with another (union). This
/// container as well as the provided container are left unaffected.
/// </summary>
/// <param name="x">Other container</param>
/// <returns>Aggregated container</returns>
public override Container Or(ArrayContainer x)
{
BitsetContainer answer = (BitsetContainer) Clone();
int c = x.Cardinality;
for (int k = 0; k < c ; ++k)
{
ushort v = x.Content[k];
int i = v >> 6;
long w = answer.Bitmap[i];
long aft = w | (1L << v);
answer.Bitmap[i] = aft;
answer.Cardinality += (int)((w - aft) >> 63);
}
return answer;
}
/// <summary>
/// Returns the elements of this ArrayContainer that are not in the
/// other ArrayContainer.
/// </summary>
/// <param name="x">the other ArrayContainer</param>
/// <returns>The modified container</returns>
public override Container iandNot(ArrayContainer x)
{
this.cardinality = Utility.unsignedDifference(this.content,
this.getCardinality(), x.content,
x.getCardinality(), this.content);
return this;
}
public override Container and(ArrayContainer value2)
{
ArrayContainer value1 = this;
int desiredCapacity = Math.Min(value1.getCardinality(), value2.getCardinality());
ArrayContainer answer = new ArrayContainer(desiredCapacity);
answer.cardinality = Utility.unsignedIntersect2by2(value1.content,
value1.getCardinality(), value2.content,
value2.getCardinality(), answer.content);
return answer;
}
public override Container or(ArrayContainer value2)
{
ArrayContainer value1 = this;
int totalCardinality = value1.getCardinality() + value2.getCardinality();
if (totalCardinality > DEFAULT_MAX_SIZE) {
// it could be a bitmap!
BitsetContainer bc = new BitsetContainer();
for (int k = 0; k < value2.cardinality; ++k)
{
ushort v = value2.content[k];
int i = v >> 6;
bc.bitmap[i] |= (1L << v);
}
for (int k = 0; k < this.cardinality; ++k)
{
ushort v = this.content[k];
int i = v >> 6;
bc.bitmap[i] |= (1L << v);
}
bc.cardinality = 0;
foreach (long k in bc.bitmap)
{
bc.cardinality += Utility.longBitCount(k);
}
if (bc.cardinality <= DEFAULT_MAX_SIZE)
return bc.toArrayContainer();
return bc;
} else {
// remains an array container
int desiredCapacity = totalCardinality; // Math.min(BitmapContainer.MAX_CAPACITY,
// totalCardinality);
ArrayContainer answer = new ArrayContainer(desiredCapacity);
answer.cardinality = Utility.unsignedUnion2by2(value1.content,
value1.getCardinality(), value2.content,
value2.getCardinality(), answer.content);
return answer;
}
}
/// <summary>
/// Performs an in-place intersection with another ArrayContainer.
/// </summary>
/// <param name="other">the other ArrayContainer to intersect</param>
public override Container iand(ArrayContainer other)
{
cardinality = Utility.unsignedIntersect2by2(content,
getCardinality(), other.content,
other.getCardinality(), content);
return this;
}
/// <summary>
/// Performs an "in-place" intersection with an ArrayContainer. Since
/// no in-place operation is actually possible, this method defaults to
/// calling ArrayContainer's and() method with this as input.
/// </summary>
/// <param name="other">the ArrayContainer to intersect</param>
public override Container IAnd(ArrayContainer other)
{
return(other.And(this)); // No in-place possible
}
public override Container ior(ArrayContainer x)
{
return this.or(x);
}
/// <summary>
/// Performs an intersection with another BitsetContainer. Depending on
/// the cardinality of the result, this will either modify the container
/// in place or return a new ArrayContainer.
/// </summary>
/// <param name="other">the other BitsetContainer to intersect</param>
public override Container iand(BitsetContainer other)
{
int newCardinality = 0;
for (int k = 0; k < bitmap.Length; ++k)
{
newCardinality += Utility.longBitCount(
bitmap[k] & other.bitmap[k]
);
}
if (newCardinality > ArrayContainer.DEFAULT_MAX_SIZE)
{
for (int k = 0; k < bitmap.Length; ++k)
{
bitmap[k] = bitmap[k]
& other.bitmap[k];
}
cardinality = newCardinality;
return this;
}
ArrayContainer ac = new ArrayContainer(newCardinality);
Utility.fillArrayAND(ref ac.content, bitmap, other.bitmap);
ac.cardinality = newCardinality;
return ac;
}
public override bool intersects(ArrayContainer x)
{
throw new NotImplementedException();
}
/// <summary> /// Computes the bitwise ANDNOT of this container with another /// (difference). Modifies the current container in place. /// </summary> /// <param name="x">Other container</param> public abstract Container IAndNot(ArrayContainer x);
/// <summary>
/// Performs an "in-place" intersection with an ArrayContainer. Since
/// no in-place operation is actually possible, this method defaults to
/// calling ArrayContainer's and() method with this as input.
/// </summary>
/// <param name="other">the ArrayContainer to intersect</param>
public override Container iand(ArrayContainer other)
{
return other.and(this); // No in-place possible
}
/// <summary>
/// Returns the elements of this BitsetContainer that are not in the
/// ArrayContainer.
/// </summary>
/// <param name="x">the ArrayContainer to compare against</param>
/// <returns>A new container with the differences</returns>
public override Container AndNot(ArrayContainer x)
{
BitsetContainer answer = (BitsetContainer) Clone();
int c = x.Cardinality;
for (int k = 0; k < c; ++k)
{
ushort v = x.Content[k];
uint i = (uint) (Utility.ToIntUnsigned(v) >> 6);
long w = answer.Bitmap[i];
long aft = w & (~(1L << v));
answer.Bitmap[i] = aft;
answer.Cardinality -= (int) ((w ^ aft) >> v);
}
if (answer.Cardinality <= ArrayContainer.DEFAULT_MAX_SIZE)
{
return answer.ToArrayContainer();
}
return answer;
}
public override Container ior(ArrayContainer x)
{
int c = x.cardinality;
for (int k = 0; k < c; ++k)
{
ushort v = x.content[k];
int i = v >> 6;
long w = this.bitmap[i];
long aft = w | (1L << v);
this.bitmap[i] = aft;
this.cardinality += (int)((w - aft) >> 63);
}
return this;
}
/// <summary>
/// Performs an intersection with another BitsetContainer. Depending on
/// the cardinality of the result, this will either modify the container
/// in place or return a new ArrayContainer.
/// </summary>
/// <param name="other">the other BitsetContainer to intersect</param>
public override Container IAnd(BitsetContainer other)
{
int newCardinality = 0;
for (int k = 0; k < Bitmap.Length; ++k)
{
newCardinality += Utility.LongBitCount(Bitmap[k] & other.Bitmap[k]);
}
if (newCardinality > ArrayContainer.DEFAULT_MAX_SIZE)
{
for (int k = 0; k < Bitmap.Length; ++k)
{
Bitmap[k] = Bitmap[k] & other.Bitmap[k];
}
Cardinality = newCardinality;
return this;
}
ArrayContainer ac = new ArrayContainer(newCardinality);
Utility.FillArrayAND(ref ac.Content, Bitmap, other.Bitmap);
ac.Cardinality = newCardinality;
return ac;
}
/**
* Copies the data to an array container
*
* @return the array container
*/
public ArrayContainer toArrayContainer()
{
ArrayContainer ac = new ArrayContainer(cardinality);
ac.loadData(this);
return ac;
}
/// <summary>
/// Returns the elements of this BitsetContainer that are not in the
/// ArrayContainer by modifying the current container in place.
/// </summary>
/// <param name="x">the ArrayContainer to compare against</param>
/// <returns>A new container with the differences</returns>
public override Container IAndNot(ArrayContainer x)
{
for (int k = 0; k < x.Cardinality; ++k)
{
this.Remove(x.Content[k]);
}
if (Cardinality <= ArrayContainer.DEFAULT_MAX_SIZE)
{
return this.ToArrayContainer();
}
return this;
}
public override Container and(ArrayContainer x)
{
ArrayContainer answer = new ArrayContainer(x.content.Length);
int c = x.cardinality;
for (int i=0; i<c; i++)
{
ushort v = x.content[i];
if (this.contains(v))
answer.content[answer.cardinality++] = v;
}
return answer;
}
/// <summary> /// Returns true if the current container intersects the other container. /// </summary> /// <param name="x">Other container</param> /// <returns>Whether they intersect</returns> public abstract bool Intersects(ArrayContainer x);