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.

The first commercial C++ compiler, Cfront, was released at that time; it translated C++ to C, which could then be compiled and linked. Later C++ compilers produced object code files to feed ...

Many compilers use LLVM including Clang, the C/C++ compiler (hence the name, “C-lang”). Mono, the .NET implementation, has an option to compile to native code using an LLVM back end.