If you want to configure VS Code for Microsoft C++ and make sure that its compiler is working. Working solutions have been mentioned in this post.

How to Compile C With Notepad. Though you can write "C" code in Notepad, you must have a C compiler, such as the compiler included with the Microsoft Visual Studio development suite, to compile ...

How many instructions do you need to successfully compile C code? Let’s see, you’d need some jump instructions, some arithmetic functions, and — of course — move instruction… ...

For those very rare occasions when an app's source code is all that's available, Wired details how to compile it yourself. Photo by artonice.

If you are writing code for any kind of 6502, it is probably worth checking out. Compiling C for the 6502 is no small feat, but then, so it is targeting PowerPoint. Don’t have a C64? Build one.