• dependency graph

Wikipedia

List of tools for static code analysis
Cppcheck
Sourcetrail
Dead-code elimination
Software visualization

GitHub

github.com/danmar/cppcheck
github.com/danmar/cppcheck/releases/tag/2.11
github.com/CoatiSoftware/Sourcetrail, Eberhard Gräther, internship at Google, discontinued

Stackoverflow

What open source C++ static analysis tools are available? [closed]
Finding “dead code” in a large C++ legacy application [closed]
Understanding -Weffc++ (2012)

YouTube

Use -Weffc++ with g++ to write effective modern C++

Div

cppclean: Find unused code in C++ projects
CppDepend: Detect and Remove Dead Code