How to enable C++ Intellisense in visual studio code in WSL ubuntu?

Question

C++ / C#

How to use autocompletion in vs code on a Windows host from WSL (to show libraries available in WSL ubuntu-20.04 gcc)? C/C++ Intellisense is installed on WSL in VS Code, how to view information about functions and libraries?
In general, I have no idea how to find out what functions are available, where they are and how to use them.

Answer 1

Auto-completion works for me by default after installing the C/C++ extension .
About viewing information about functions and libraries, the question is not clear.
The standard library is supported by compilers on all platforms.
You can view information about any function in the terminal with the man command. For example:
man 3 printf