i have a passion for graphs, and while writing docs (for my naive/noob c code) i was looking at the generated doxygen/graphviz function call-graphs and started to wonder, could we graph variable "calls"?

some inkscaping and couple prototypes later...

https://github.com/oskude/cvag

  - does this (or better) already exist?
  - how does one visualize the gist of c(ode)?