Do you have any sugestions of tools to ease the task of understanding C/C++ code? We just inherited a large piece of software written by others and we need to quickly get up to speed on it. Any advice on tools that might simplify this task?
SourceInsight and Understand for C++ are the best tools you can get for c/c++ code analysis including flow charts.
Profiling software gives you an idea of which functions have been called.
If you can use Linux, try KCachegrind