[swift-corelibs-dev] IndexSet isStrictSubsetOf bug?

Karl razielim at gmail.com
Fri Jun 17 13:44:28 CDT 2016

Is this a bug in IndexSet? It seems like it should return true, but it returns false:

IndexSet([0,2]).isStrictSubset(of: IndexSet([0,1,2]))

From the documentation:

> Returns a Boolean value that indicates whether this set is a strict subset of the given set.
> Set A is a strict subset of another set B if every member of A is also a member of B and B contains at least one element that is not a member of A.

Using Xcode 8 beta 1.


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