The code demonstrates how to create a Swift framework that utilizes functions written in C language.
Step 1: Create a Cocoa Touch Framework File -> New -> Project -> Cocoa Touch Framework Name it SwiftCFramework
Step 2: Create xcconfig file: Xcode build configuration files, more commonly known by their xcconfig file extension, allow build settings for your app to be declared and managed without Xcode. Setp 3: Add xcconfig to the Configurations section of the Project Info Step 4: Add swiftcframework.mapmodule and public.mapmodule files to the project
Step 5: Add C header files and make sure their Target Membership is set to Private Step 6: Add a run script to remove private headers and create a public modulemap file Name the script "Make C Header Files Private" Step 7: Add the framework to a test application