#Html code to swift converter how to
#Html code to swift converter mac os x
#Html code to swift converter mac os

Go to File->New->File, select C++ file in the dialog that appears, and click Next.

Add the library's header file, junk.h, to our project by going to File->Add Files to 'cli_swift'., navigating to the file, and clicking Add.

We need this in order to be able to call the library from the C++ wrapper ('glue').

Add the static C++ library to the Xcode project.

The 'glue' is, however, written in such a way that it can be called from C code, and things that can be called from C can typically be also called from Swift. The 'glue' has to be in C++ because it will call C++ library code that was not written to be called from C. Now that we have our library, let's go back to Xcode and create a C++ file providing the 'glue' between our C++ library and command line utility written in Swift.

Compile junk.cpp to object file, junk.o, and create a library, named libjunkcpp.a, that contains the object file ($ is the command prompt of the Terminal):Īdd C++ Wrapper to the Xcode Project to Provide the Swift-C++ Interface.

Create the library's implementation file, call it junk.cpp, with the following content:.Create the header file for the library, let's call it junk.h, with the following content:.Choose a location for the library and cd to that directory.

#Html code to swift converter mac os

You can also use the Clang compiler that should come with your Mac OS X, in which case replace g++ with clang++ in the example. The command for compiling/linking C++ code is g++. We could have done it in Xcode, but let's just use a command line compiler, GCC. Now let's build a simple C++ static library. We see 'Hello, World!' printed out in the output pane. Now we can run our project by clicking the Run button from the toolbar, selecting Run from the Product menu, or by typing Command-R.We can comment out or remove the 'import Foundation' line, since we are not using any of the Foundation features. The resulting project should consist of one Swift source file, main.swift, which contains: In the dialog that appears select a location for your project and click Create.For the purposes of this tutorial let's call it cli_swift. Choose a name for your project and type it in the Product Name field in the next dialog make sure Swift is selected in the Language field.In Xcode go to File->New->Project, in the dialog that appears select Command Line Tool and click Next.We could have created a more sophisticated GUI app, but since the focus here is on interfacing Swift with C++ code, a command line utility will suffice.

#Html code to swift converter mac os x

Here it's assumed that you know the basics of using Xcode, Mac OS X Terminal command line, and programming in Swift, C, and C++.Ĭreate a Swift Command Line Utility in Xcodeįirst we are going to create a simple command line utility in Swift using Xcode. Write a C++ wrapper to provide the 'glue' between our C++ library and the Swift utility.Create a simple command line utility in Swift using Xcode.

#Html code to swift converter how to

What if you have a library developed in C++ and want to leverage that code in you Swift applications? Here we will see how to incorporate a simple C++ library into a trivial Swift command line utility on Mac OS X. However, huge code bases exist that are written in C and C++. Swift is an exciting new programming language combining the best of older languages such as Java, C++, Objective-C, JavaScript etc.