/// <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 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);
}
/// <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)
{
ArrayContainer value1 = this;
int totalCardinality = value1.GetCardinality() + x.GetCardinality();
if (totalCardinality > DEFAULT_MAX_SIZE)
{
// it could be a bitmap!
BitsetContainer bc = new BitsetContainer();
for (int k = 0; k < x.Cardinality; ++k)
{
ushort v = x.Content[k];
int i = v >> 6;
bc.Bitmap[i] |= 1L << v;
}
for (int k = 0; k < Cardinality; ++k)
{
ushort v = 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);
}
// 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(), x.Content, x.GetCardinality(), answer.Content);
return(answer);
}
/// <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>
/// 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>
/// 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);
}
/// <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)
{
ArrayContainer value1 = this;
int totalCardinality = value1.GetCardinality() + x.GetCardinality();
if (totalCardinality > DEFAULT_MAX_SIZE)
{
// it could be a bitmap!
BitsetContainer bc = new BitsetContainer();
for (int k = 0; k < x.Cardinality; ++k)
{
ushort v = x.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(),
x.Content,
x.GetCardinality(),
answer.Content);
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;
}
/// <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>
/// 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;
}
/// <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 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;
}
