Crystal REVS is the best context-sensitive editor there is. Has Flowcharts, Rich Call/Caller/Class Trees, Edit Panels, Real Time Auto-Formatting, Visio export, State diagrams, static analysis, HTML docs, Data, Call Flow, Data Dependency, Compilers.
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Code Visual for C & C++ 2.4 Code Visual for C & C++ is a C and C++ Code Browser integrating program code editor,analyzer and documentation generator with code flowcharting and visualization