title: How to find a file in Emacs without known exact directory?
body: <p>In vim it's very easy to find a file without knowing which directory the file is in. Doing this ":args **/file.hpp" if the file exists, it will get it open.</p>
  
  <p>Is there any substitution in Emacs to do so? The find-file seems work for wildcards, but it doesn't do the tricky like vim does with <code>**</code>.</p>