[Boost-users] [range] for_each and std::map of std::list

Hi, Consider a map defined as... std::map< int, std::list< std::string > > my_map; I'm wondering if/how it's possible to use Boost.Range to call a function on each std::string in each of the lists contained in the map. I have an implementation below which works using a C++0x lambda function but am curious if this can be done purely using Boost.Range? boost::for_each( boost::adaptors::values( my_map), []( const std::list< std::string >& my_list ) { boost::for_each( my_list, some_func ); } ); ideas anyone?