CPP
cpp
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#include <iostream>
#include <fstream>
#include <string>
#include <vector>
#include <set>
#include <sstream>
#include <queue>
#include <functional>
using namespace std;
class Message
{
public:
Message(char icharMsgType,unsigned long iulngSeqNum,char icharSide,unsigned long iulngSize,string istrTicker,double idblPrice);
bool operator<(const Message& obj)const;
friend ostream& operator<<(ostream& os, const Message& obj);
private:
char m_charMsgType;
unsigned long m_ulngSeqNum;
char m_charSide;
unsigned long m_ulngSize;
string m_strTicker;
double m_dblPrice;
};
//constructor
Message::Message(char icharMsgType, unsigned long iulngSeqNum, char icharSide, unsigned long iulngSize, string istrTicker, double idblPrice) :
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