public override bool Equals(object ak_Obj)
{
k_BucketIterator lk_Iter = ak_Obj as k_BucketIterator;
if (lk_Iter == null)
{
return(false);
}
return(mi_Index == lk_Iter.mi_Index && object.ReferenceEquals(mk_Table, lk_Iter.mk_Table));
}
public override int Distance(k_Iterator ak_Iter)
{
k_BucketIterator lk_Iter = ak_Iter as k_BucketIterator;
if (lk_Iter == null || !object.ReferenceEquals(lk_Iter.Collection, this.Collection))
{
throw new ArgumentException("Cannot determine distance of iterators belonging to different collections.");
}
k_Iterator lk_End = mk_Table.End;
int li_IndexDiff;
if (this != lk_End && ak_Iter != lk_End)
{
li_IndexDiff = mi_Index - lk_Iter.mi_Index;
}
else
{
li_IndexDiff = (this == lk_End) ? 1 : -1; // 1 is also fine when both are End
}
if (li_IndexDiff < 0)
{
int li_Diff = 0;
k_Iterator lk_Bck = this.Clone();
for (; lk_Bck != ak_Iter && lk_Bck != lk_End; lk_Bck.Next())
{
--li_Diff;
}
if (lk_Bck == ak_Iter)
{
return(li_Diff);
}
}
else
{
int li_Diff = 0;
k_Iterator lk_Fwd = ak_Iter.Clone();
for (; lk_Fwd != this && lk_Fwd != lk_End; lk_Fwd.Next())
{
++li_Diff;
}
if (lk_Fwd == this)
{
return(li_Diff);
}
}
throw new Exception("Inconsistent state. Concurrency?");
}