public static int GetHashCode <T>(HashSetValue <T> value)
{
ImmutableHashSet <T> underlyingSet = value.UnderlyingSet;
int dataHashCode = 0;
foreach (T element in underlyingSet)
{
// XOR, because the ordering must not matter.
dataHashCode ^= EqualityComparer <T> .Default.GetHashCode(element);
}
return(HashCode.Seed
.HashWith(underlyingSet.Count)
.HashWith(dataHashCode));
}
public static bool Equals <T>(HashSetValue <T> first, HashSetValue <T> second) => first.SetEquals(second);