From <a href="https:&#x2F;&#x2F;github.com&#x2F;apple&#x2F;swift-evolution" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;apple&#x2F;swift-evolution</a><p>&quot; ... However, C++ itself is a very complex language, and providing good interoperability with C++ is a significant undertaking that is out of scope for Swift 3.0. &quot;