## Swift

[Importing Objective-C into Swift](https://developer.apple.com/documentation/swift/imported_c_and_objective-c_apis/importing_objective-c_into_swift)

[Importing Swift into Objective-C](https://developer.apple.com/documentation/swift/imported_c_and_objective-c_apis/importing_swift_into_objective-c)

[Unsafe Swift using  pointers and interacting with C](https://www.raywenderlich.com/7181017-unsafe-swift-using-pointers-and-interacting-with-c)

[Pure Swift 5 CommonCrypto AES Encryption](http://www.splinter.com.au/2019/06/09/pure-swift-common-crypto-aes-encryption/)

[#ifdef replacement in the Swift language](https://stackoverflow.com/questions/24003291/ifdef-replacement-in-the-swift-language)

[Do you need to release CGContextRef in Swift?](https://stackoverflow.com/questions/27872822/do-you-need-to-release-cgcontextref-in-swift)