VelocityDbHashSetTIsProperSubsetOf Method

Checks if this is a proper subset of other (i.e. strictly contained in) Implementation Notes: The following properties are used up-front to avoid element-wise checks: 1. If this is the empty set, then it's a proper subset of a set that contains at least one element, but it's not a proper subset of the empty set. 2. If other has unique elements according to this equality comparer, and this has >= the number of elements in other, then this can't be a proper subset. Furthermore, if other is a hashset using the same equality comparer, we can use a faster element-wise check.

public bool IsProperSubsetOf(
	IEnumerable<T> other
)

Public Function IsProperSubsetOf ( 
	other As IEnumerable(Of T)
) As Boolean

public:
bool IsProperSubsetOf(
	IEnumerable<T>^ other
)

member IsProperSubsetOf : 
        other : IEnumerable<'T> -> bool