Provide a way to debug the include path search specified in c_cpp_properties.json

[raffaeler]

Environment

• OS and Version: Ubuntu 24.04
• VS Code Version: 1.97.0
• C/C++ Extension Version: 1.24.9
• If using SSH remote, specify OS of remote machine: (local use)

Bug Summary and Steps to Reproduce

Bug Summary:
I am following the reference page: https://code.visualstudio.com/docs/cpp/c-cpp-properties-schema-reference
Anyway, there are many cases where the include are not found even if the files are found in the provided paths
Of course, the code compiles successfully.

The compiler is:
gcc (Ubuntu 13.3.0-6ubuntu2~24.04) 13.3.0

How can I visualize all the paths where the definitions are searched?
How can I "debug" the search paths?

Configuration and Logs

N/A

Other Extensions

No response

Additional context

No response

[sean-mcmanus]

@raffaeler Can you try running the C/C++: Log Diagnostics command? The include paths reported there should match what is being used to resolve includes.