Right now its a simple .c file but to finish the project I need to make .h and .cpp files and would like to test run them on my mac but i dont know how, just how to compile them.

The often overlooked Xcode FileMerge app lets you spot what's changed between two files. Here's how to spot the differences using the tool.

Xcode 15 allows you to preview your iOS app's user interface as you build it. Here's how to use it to see how your app appears to users.