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Problem compiling

Jonas Wingren (108)
Hi!

So I started using the Boost library yesterday. And I've created some code that I want to test. But I can't get it to compile. Either it can't find EvEChecker.hpp or some strange errors appear that have nothing to do with my code.

Current code:
Main.cpp
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#include <EvEChecker.hpp>

int main(){
    MarketItem mi34;
    mi34.load(34, "quicklook.xml");
    cout << mi34.getSellOrders().size()<< endl;
    return 0;



}


EvEChecker.hpp:
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#include <boost/property_tree/ptree.hpp>
#include <boost/property_tree/xml_parser.hpp>
#include <boost/foreach.hpp>
#include <string>
#include <set>
#include <exception>
#include <iostream>

using namespace std;

class Order{
    protected:
        string m_StationName,m_Expires, m_ReportedTime, m_OrderID;
        int m_Region, m_Station, m_Security, m_Range, m_Price, m_VolRemain, m_MinVolume;

    public:
        //constructor
        Order(string orderID, string stationName, string expires,string reported, int region, int station,int security, int range, int price, int volremain, int minvolume){
            m_OrderID = orderID;
            m_StationName = stationName;
            m_Expires = expires;
            m_ReportedTime = reported;
            m_Region = region;
            m_Station = station;
            m_Security = security;
            m_Range = range;
            m_Price = price;
            m_VolRemain = volremain;
            m_MinVolume = minvolume;
        }

        string getStationName(){return m_StationName;};
        string getExpires(){return m_Expires;};
        string getReportedTime(){return m_ReportedTime;};
        int getRegion(){return m_Region;};
        int getStation(){return m_Station;};
        int getSecurity(){return m_Security;};
        int getRange(){return m_Range;};
        int getPrice(){return m_Price;};
        int getVolRemain(){return m_VolRemain;};
        int getMinVolume(){return m_MinVolume;};

};

class MarketItem{
    protected:
        int m_ItemID, m_Hours, m_Minqty;
        string m_ItemName;
        //unigue Order IDs
        std::set<Order> m_SellOrders, m_BuyOrders;
    public:
        //get the data from the XML parser and extract the data
        void load(int, string);

        int getItemID(){return m_ItemID;};
        int getHours(){return m_Hours;};
        int getMinqty(){return m_Minqty;};
        string getItemName(){return m_ItemName;};

        //they don't need to change thereof const &
        const std::set<Order>& getSellOrders(){const std::set<Order>& temp = m_SellOrders; return temp;};
        const std::set<Order>& getBuyOrders(){const std::set<Order>& temp = m_BuyOrders; return temp;};

};

void MarketItem::load(int itemID, string filename){
    using boost::property_tree::ptree;
    ptree pt;

    read_xml(filename , pt);
    //load all the values
    m_ItemID = pt.get<int>("quicklook.item");
    m_ItemName = pt.get<std::string>("quicklook.itemname");
    m_Hours = pt.get<int>("quicklook.hours");
    m_Minqty = pt.get<int>("quicklook.minqty");

    BOOST_FOREACH(ptree::value_type const& v, pt.get_child("quicklook.sell_orders")){
        if(v.first == "order"){
            m_SellOrders.insert(Order(v.second.get<std::string>("<xmlattr.id>"), v.second.get<std::string>("station"), v.second.get<std::string>("expires"), v.second.get<std::string>("reported_time"),
                v.second.get<int>("region"), v.second.get<int>("station"), v.second.get<int>("security"), v.second.get<int>("range"), v.second.get<int>("price"),
                v.second.get<int>("vol_remain"), v.second.get<int>("min_volume")));
        }
    }
}


When I try to compile and run Main.cpp I get the following errors:

c:\program files (x86)\codeblocks\mingw\bin..\lib\gcc\mingw32\4.7.1\include\c++\bits\stl_function.h
and so on and so on. With errors on line 1285 and similar.

(apparently I can't paste the build messages correctly)




Any help?
Last edited on
Jonas Wingren (108)
This is the only error it finds, but then there is 4 warnings and a shitton of info from other places.

c:\program files (x86)\codeblocks\mingw\bin\../lib/gcc/mingw32/4.7.1/include/c++/bits/stl_function.h:237:22: error: no match for 'operator<' in '__x < __y'
JLBorges (13770)
> error: no match for 'operator<' in '__x < __y'


For std::set<Order> to be feasible, Order must be LessThanComparable
http://www.sgi.com/tech/stl/LessThanComparable.html

Something like this is required:

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class Order
{
        // ...
    public:
        // ...

        // *** added ***
        bool operator< ( const Order& that ) const { return m_OrderID < that.m_OrderID ; }

        // ...
};
Last edited on
Jonas Wingren (108)
ah!! ah!!!

Ok, so best option is to swap container or can I somehow make them orderable by orderID?

wait, that was what u just did
:P

ty ty
Last edited on
Jonas Wingren (108)
hmm... still gives me the same error...
c:\program files (x86)\codeblocks\mingw\bin\..\lib\gcc\mingw32\4.7.1\include\c++\bits\stl_function.h|237|error: no match for 'operator<' in '__x < __y'|
Last edited on
JLBorges (13770)
> hmm... still gives me the same error...

Does it?

http://liveworkspace.org/code/7WfJh$0
Jonas Wingren (108)
yeah...

added the overloaded operator...



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#include <boost/property_tree/ptree.hpp>
#include <boost/property_tree/xml_parser.hpp>
#include <boost/foreach.hpp>
#include <string>
#include <set>
#include <exception>
#include <iostream>

using namespace std;

class Order{
    protected:
        string m_StationName,m_Expires, m_ReportedTime, m_OrderID;
        int m_Region, m_Station, m_Security, m_Range, m_Price, m_VolRemain, m_MinVolume;

    public:
        //constructor
        Order(string orderID, string stationName, string expires,string reported, int region, int station,int security, int range, int price, int volremain, int minvolume){
            m_OrderID = orderID;
            m_StationName = stationName;
            m_Expires = expires;
            m_ReportedTime = reported;
            m_Region = region;
            m_Station = station;
            m_Security = security;
            m_Range = range;
            m_Price = price;
            m_VolRemain = volremain;
            m_MinVolume = minvolume;
        }

        bool operator< ( const Order& that ) const { return m_OrderID < that.m_OrderID ; }

        string getStationName(){return m_StationName;};
        string getExpires(){return m_Expires;};
        string getReportedTime(){return m_ReportedTime;};
        int getRegion(){return m_Region;};
        int getStation(){return m_Station;};
        int getSecurity(){return m_Security;};
        int getRange(){return m_Range;};
        int getPrice(){return m_Price;};
        int getVolRemain(){return m_VolRemain;};
        int getMinVolume(){return m_MinVolume;};

};

class MarketItem{
    protected:
        int m_ItemID, m_Hours, m_Minqty;
        string m_ItemName;
        //unigue Order IDs
        std::set<Order> m_SellOrders, m_BuyOrders;
    public:
        //get the data from the XML parser and extract the data
        void load(int, string);

        int getItemID(){return m_ItemID;};
        int getHours(){return m_Hours;};
        int getMinqty(){return m_Minqty;};
        string getItemName(){return m_ItemName;};

        //they don't need to change thereof const &
        const std::set<Order>& getSellOrders(){const std::set<Order>& temp = m_SellOrders; return temp;};
        const std::set<Order>& getBuyOrders(){const std::set<Order>& temp = m_BuyOrders; return temp;};

};

void MarketItem::load(int itemID, string filename){
    using boost::property_tree::ptree;
    ptree pt;

    read_xml(filename , pt);
    //load all the values
    m_ItemID = pt.get<int>("quicklook.item");
    m_ItemName = pt.get<std::string>("quicklook.itemname");
    m_Hours = pt.get<int>("quicklook.hours");
    m_Minqty = pt.get<int>("quicklook.minqty");

    BOOST_FOREACH(ptree::value_type const& v, pt.get_child("quicklook.sell_orders")){
        if(v.first == "order"){
            m_SellOrders.insert(Order(v.second.get<std::string>("<xmlattr.id>"), v.second.get<std::string>("station"), v.second.get<std::string>("expires"), v.second.get<std::string>("reported_time"),
                v.second.get<int>("region"), v.second.get<int>("station"), v.second.get<int>("security"), v.second.get<int>("range"), v.second.get<int>("price"),
                v.second.get<int>("vol_remain"), v.second.get<int>("min_volume")));
        }
    }
}
Jonas Wingren (108)
Hmm noticed that I can compile and build the EvEChecker.hpp with no errors
but can't do it on the main.cpp one.

Still gives me the same error though.
Last edited on
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