Need for boost::property_tree:ptree::range_type

[dmilos@…]

Examples
  Without:

   void my_function
    (
       boost::property_tree:ptree &p
     , std::pair< Here goes long story about I don't know what. Shoud I use asoc_iter or cons_assoc or decltyp and How. Blah, blah. Help! Help! >     &r
     , std::string const          & name
     )
    {
     r = p.equal_range( name );
    }

With:

   void my_function
    (
       boost::property_tree:ptree const&p
     , boost::property_tree:ptree::range_const_type     &r
     , std::string const          & name
     )
    {
     r = p.equal_range( name );
    }