//////////////////////////////////////////////////////////////////////////////
public static Obj Copy(SymBinaryTable[] tables)
{
int size = 0;
for (int i = 0; i < tables.Length; i++)
{
size += tables[i].Size();
}
if (size == 0)
{
return(EmptyRelObj.singleton);
}
Obj[] objs1 = new Obj[size];
Obj[] objs2 = new Obj[size];
int[] buffer = new int[32];
int next = 0;
for (int iT = 0; iT < tables.Length; iT++)
{
SymBinaryTable table = tables[iT];
OneWayBinTable oneWayTable = table.table;
SurrObjMapper mapper = table.mapper;
int len = oneWayTable.column.Length;
for (int iS = 0; iS < len; iS++)
{
int count1 = oneWayTable.Count(iS);
if (count1 != 0)
{
if (count1 > buffer.Length)
{
buffer = new int[Array.Capacity(buffer.Length, count1)];
}
Obj obj1 = mapper(iS);
int _count1 = oneWayTable.Restrict(iS, buffer);
Debug.Assert(_count1 == count1);
for (int i = 0; i < count1; i++)
{
int surr2 = buffer[i];
if (iS <= surr2)
{
objs1[next] = obj1;
objs2[next++] = mapper(surr2);
}
}
}
}
}
Debug.Assert(next == size);
return(Builder.CreateBinRel(objs1, objs2, size)); //## THIS COULD BE MADE MORE EFFICIENT
}
//////////////////////////////////////////////////////////////////////////////
public static Obj Copy(BinaryTable[] tables, bool flipped)
{
int count = 0;
for (int i = 0; i < tables.Length; i++)
{
count += tables[i].Size();
}
if (count == 0)
{
return(EmptyRelObj.singleton);
}
Obj[] objs1 = new Obj[count];
Obj[] objs2 = new Obj[count];
int[] buffer = new int[32];
int next = 0;
for (int iT = 0; iT < tables.Length; iT++)
{
BinaryTable table = tables[iT];
OneWayBinTable oneWayTable = table.table1;
SurrObjMapper mapper1 = table.mapper1;
SurrObjMapper mapper2 = table.mapper2;
int len = oneWayTable.column.Length;
for (int iS = 0; iS < len; iS++)
{
int count1 = oneWayTable.Count(iS);
if (count1 != 0)
{
if (count1 > buffer.Length)
{
buffer = new int[Array.Capacity(buffer.Length, count1)];
}
Obj obj1 = mapper1(iS);
int _count1 = oneWayTable.Restrict(iS, buffer);
Debug.Assert(_count1 == count1);
for (int i = 0; i < count1; i++)
{
objs1[next] = obj1;
objs2[next++] = mapper2(buffer[i]);
}
}
}
}
Debug.Assert(next == count);
return(Builder.CreateBinRel(flipped ? objs2 : objs1, flipped ? objs1 : objs2)); //## THIS COULD BE MADE MORE EFFICIENT
}
//////////////////////////////////////////////////////////////////////////////
public void InitReverse(OneWayBinTable source)
{
// Debug.Assert(count == 0);
int len = source.column.Length;
for (int i = 0; i < len; i++)
{
int[] surrs = source.Restrict(i);
for (int j = 0; j < surrs.Length; j++)
{
Insert(surrs[j], i);
}
}
}