libstdc++6-4.2-doc 4.2-20070528-0ubuntu2 (i386 binary) in ubuntu gutsy

 This package contains documentation files for the GNU stdc++ library.
 .
 One set is the distribution documentation, the other set is the
 source documentation including a namespace list, class hierarchy,
 alphabetical list, compound list, file list, namespace members,
 compound members and file members.