From I understood, Swift should be able to cover all Objective-C and C use cases:<p>&quot;Swift is a successor to both the C and Objective-C languages&quot;<p><a href="https:&#x2F;&#x2F;developer.apple.com&#x2F;swift&#x2F;" rel="nofollow">https:&#x2F;&#x2F;developer.apple.com&#x2F;swift&#x2F;</a><p>And I read somewhere that there are still some fine tuning in regards to covering the C use cases, which should be part of Swift 3.0.