Boost C++ XML parsing -

i familiar on how parse xml boost, if xml has , including 3 levels. however, having trouble following example:

(please ignore slight lack of logic in xml since adaptation of cannot change. structure important)

<content>        <room>            <roomname>livingroom</roomname>                          <description>                   <color>red</color>                  <size>small</size>                                </description>             <description>                  <color>blue</color>                  <size>big</size>                                      </description>                </room>        <room>            <roomname>bathroom</roomname>             <description>                 <color>green</color>                 <size>medium</size>             </description>       </room>    </content> 

i have tried this:

struct room {     std::string roomname;     std::string  roomcolor;     std::string  roomsize;    };  void parseroomsxml(){      boost::property_tree::ptree tree;     boost::property_tree::read_xml("./rooms.xml", tree);     boost::property_tree::ptree formats = tree.get_child("content");      boost_foreach( boost::property_tree::ptree::value_type const& f, formats ) {         if( f.first == "room" ) {             room s;             s.roomname = f.second.get<std::string>("roomname");             std::cout<<s.roomname<<std::endl;              const boost::property_tree::ptree & attributes = formats.get_child("room");              boost_foreach( boost::property_tree::ptree::value_type const& v, attributes ) {                 if (v.first == "description"){                     s.roomcolor = v.second.get<std::string>("color");                     s.roomsize = v.second.get<std::string>("size");                     std::cout<< s.roomcolor << " " <<s.roomsize;                 }             }         }     } } 

the result first room parsed correctly, second room has description of first one:

=========================

output:

livingroom

red small

blue big

bathroom

red small

blue big

========================

expected result be:

livingroom

red small

blue big

bathroom

green medium

===================================

thanks in advance, appreciated, since trying used boost.

the problem seems in statement: const boost::property_tree::ptree & attributes = formats.get_child("room");

you can iterate on children using following code:

boost_foreach(boost::property_tree::ptree::value_type &v,     config.get_child("path.to.array_of_objects")) {     std::cout << "first data: " << v.first.data() << std::endl;     boost::property_tree::ptree subtree = (boost::property_tree::ptree) v.second ;     boost_foreach(boost::property_tree::ptree::value_type &vs,         subtree)     {         std::cout << "sub data: " << vs.first.data() << std::endl;         color = vs.second.get<std::string>("color");         roomsize = vs.second.get<std::string>("size");     } }