public override bool Contains(TValue value)
{
foreach (TValue v in this)
{
if (myDictionary.EqualValues(v, value))
{
return(true);
}
}
return(false);
}
public override bool Contains(ICollection <TValue> values)
{
if (values == null)
{
return(false);
}
TValue[] valueArray = Algorithms.ToArray(values);
foreach (ICollection <TValue> v in this)
{
if (v.Count != valueArray.Length)
{
continue;
}
// First check in order for efficiency.
if (Algorithms.EqualCollections(v, values, myDictionary.EqualValues))
{
return(true);
}
// Now check not in order. We can't use Algorithms.EqualSets, because we don't
// have an IEqualityComparer, just the ability to compare for equality. Unfortunately this is N squared,
// but there isn't a good choice here. We don't really expect this method to be used much.
bool[] found = new bool[valueArray.Length];
foreach (TValue x in v)
{
for (int i = 0; i < valueArray.Length; ++i)
{
if (!found[i] && myDictionary.EqualValues(x, valueArray[i]))
{
found[i] = true;
}
}
}
if (Array.IndexOf(found, false) < 0)
{
return(true); // every item was found. The sets must be equal.
}
}
return(false);
}