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Swift uses a special "bridging header" to expose Objective-C code to Swift. This header will presumably be processed by the Swift compiler.

In the other direction, XCode will automatically generate an Objective-C header to expose your Swift code to Objective-C.

The ibooks guide references a "Using Swift with Cocoa and Objective-C" document. Is that where you got your information?

https://developer.apple.com/library/prerelease/ios/documenta...

For discussion: https://news.ycombinator.com/item?id=7837468

It seemed like it could interoperate with C just fine based on the slide talking about all three. Also because it uses the Objective-C runtime and compiles to native, it might just see C functions as normal functions. Though what little I've looked at the free book hasn't given me any hints about that yet.

"You cannot import C++ code directly into Swift. Instead, create an Objective-C or C wrapper for C++ code."

I suspect that as long as it compiles to LLVM, anything goes.

I hope so. Another stab on C's back.