issue with vs code

My general advice on this front is to repeat your steps outside of your third-party IDE. That tells you whether the problem is with your IDE or with your command-line tools setup. I talk about this extensively in Investigating Third-Party IDE Integration Problems.

If you run through the example from the Run a Simple Test section of that post, what do you see?

IMPORTANT This uses clang, not gcc. I did that because, depending on your setup, gcc might be an alias for clang or the actual GCC C compiler. I can’t provide much help with the latter.

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Quinn “The Eskimo!” @ Developer Technical Support @ Apple
let myEmail = "eskimo" + "1" + "@" + "apple.com"