Read: IntelliSense not working in VS Code 3] Reinstall C/C++. Maybe when installing C/C++ you have made some mistakes due to which Intellisense is unable to pick up libraries. In that case, we are ...

When you debugging C++ code, let me guess what steps you take: trace values using printf, TRACE, outputDebugString, etc., and scan the log in the output window, console or even a file. It's already an ...