title: How to use cscope for a project which has .c , .cpp and .h files?
body: <p>I am working on a project which requires the understanding of <a href="http://llvm.org/" rel="noreferrer">llvm</a> compiler source-code. To browse source code of llvm, I tried to use cscope with following command in the root directory of the source: </p>
  
  <blockquote>
    <p>cscope -R *</p>
  </blockquote>
  
  <p>But it doesn't work. As there are mainly .cpp and .h files but some .c files are also there. So now I don't have a clue how to make cscope work? Can someone please help?</p>