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Can Anyone find the error here?
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Join Date: Jun 2008
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Hi all,
i was hoping some on could help me solve this problem i am having:i have been going over it for the past two hours but can not find the mistake\s. I have three files i am working on 1 header and 2 cpp ones(implementation of header file and TestDriver )I am getting this error:
[Linker Error] Error: Unresolved external 'Flight::Flight(const Flight&)' referenced from I:\DOCUMENTS AND SETTINGS\JAYHIZZEY\MY DOCUMENTS\BORLAND STUDIO PROJECTS\C++ ***3 PROJECT\DEBUG_BUILD\FLIGHTS.OBJ
here is the code for the header file:
header implementation cpp file
and the TestDriver
if any other problems (potential or current) are found please let me know, and give me a help hand please.
i was hoping some on could help me solve this problem i am having:i have been going over it for the past two hours but can not find the mistake\s. I have three files i am working on 1 header and 2 cpp ones(implementation of header file and TestDriver )I am getting this error:
[Linker Error] Error: Unresolved external 'Flight::Flight(const Flight&)' referenced from I:\DOCUMENTS AND SETTINGS\JAYHIZZEY\MY DOCUMENTS\BORLAND STUDIO PROJECTS\C++ ***3 PROJECT\DEBUG_BUILD\FLIGHTS.OBJ
here is the code for the header file:
C++ Syntax (Toggle Plain Text)
#ifndef FLIGHTS_ #define FLIGHTS_ #include <iostream> #include <string> #include <vector> #include <sstream> using namespace std; class Flight { //a class which makes a flight private: string org; //origin of flight string dest; //destination of flight double depTime; // departure time double dura; // duration of flight public: //Start House-keeping functions /*Default constructor * */ Flight (); /* Constructor for flight object * * */ Flight(const string&, const string&,const double&,const double&); /* copy constructor for flight object * * */ Flight(const Flight& rhs); /**destructor for flight object * * */ ~Flight(); //end House-keeping functions\\ //_________________Start of other Flight functions___________________________\\ /* Equals operation * */ Flight& operator=(const Flight& rhs); /* get origin * */ string getOrigin()const; /* get destination * */ string getDestination()const; /* get departure time * */ double getDepartureTime()const; /* get duration * */ double getDuration ()const; /* set origin * */ void setOrigin(string); /* set destination * */ void setDestination(string); /* set departure time * */ void setDepartureTime(double); /* get duration * */ void setDuration(double); /* set all * */ void setAll(string,string,double,double); /** ToString to display flight information * */ string toString()const; } ; // _________end of Flight class__________________\\ class FlightsTL{ //container that will hold Flight objects friend class Flight; private: int FlightsNum; // keeps track of how many airports there are vector<Flight> Flights; // container for all flights public: /*Default constructor * */ FlightsTL(); /* constructor * * */ FlightsTL(int); /*copy constructor * * */ FlightsTL (const FlightsTL& rhs); /*destructor * * */ ~FlightsTL(); /*Equals operator * * */ FlightsTL& operator=(const FlightsTL& rhs); /* get FlightsNum * */ int getFlightsNum (int); /* set FlightsNum * */ void setFlightsNum(int); /*add a existing Flighr * */ void addFlight(const Flight&); /* * this is adding a new flight */ void addNewFlight(const string&, const string&,const double&, const double&); /** ToString to display flight information * */ string toString()const; } ; # endif /*FLIGHTS_*/
header implementation cpp file
C++ Syntax (Toggle Plain Text)
#include"Flights.h" //_____________Start Implementation of Flight class________________\\ /*Start House-keeping functions for Flight Class * Default constructor * */ Flight:: Flight (){ //debug statement cout<< "we are in the construtor with Default arguments\n"; setOrigin(""); setDestination(""); setDepartureTime(0); setDuration(0) ; } /* Constructor for flight object * * */ Flight::Flight(const string &orig ,const string &destin ,const double &dep, const double &dur ){ //debug statement cout<< "we are in the construtor with arguments\n"; setOrigin(orig); setDestination(destin); setDepartureTime(dep); setDuration(dur); } /* copy constructor for flight object * * * FlightsTL:: Flight:: Flight(const Flight& rhs){ } */ /**destructor for flight object * * */ Flight:: ~Flight(){ } //end House-keeping functions \\ //_____________Start other functions____________________________\\ /* Equals operation * */ Flight& Flight::operator=(const Flight& rhs){ return *this; } /* get origin * */ string Flight::getOrigin() const{ return org; } /* get destination * */ string Flight::getDestination()const{ return dest; } /* get departure time * */ double Flight:: getDepartureTime()const{ return depTime; } /* get duration * */ double Flight:: getDuration ()const{ return dura; } /* set origin * */ void Flight:: setOrigin(string t ){ org = t; } /* set destination * */ void Flight:: setDestination(string s){ dest =s; } /* set departure time * */ void Flight:: setDepartureTime(double c){ depTime = c; } /* get duration * */ void Flight:: setDuration(double d){ dura = d; } /* set all * */ void Flight:: setAll(string a,string b,double c,double d){ setOrigin(a); setDestination(b); setDepartureTime(c); setDuration(d) ; } /** ToString to display flight information * */ string Flight:: toString()const{ string s; double depT = getDepartureTime(); double durA = getDuration(); // convert double to string char deptStr[50]; sprintf(deptStr,"%g",depT); // convert to string char durStr[50]; sprintf(durStr,"%g",durA); // print all Flight information s=getOrigin() +"\t"+ getDestination() + "\t"+ deptStr + "\t"+ durStr +"\n" ; return s; } //__________________end of Flight implementation_____________\\ //__________________Start of of FlightsTL implementation_____________\\ /*Default constructor * */ FlightsTL::FlightsTL(){ FlightsNum = 0; } /* constructor * * */ // FlightsTL:: FlightsTL(int num){ // } /*copy constructor * * */ FlightsTL:: FlightsTL (const FlightsTL& rhs){ Flights = rhs.Flights; } /*destructor * * */ FlightsTL:: ~FlightsTL(){ } /*Equals operator * * */ FlightsTL& FlightsTL::operator=(const FlightsTL& rhs){ if (this != &rhs){ return *this; } return *this; } /* get FlightsNum * */ int FlightsTL:: getFlightsNum (int num){ return FlightsNum; } /* set FlightsNum * */ void FlightsTL:: setFlightsNum(int num){ FlightsNum = num; } void FlightsTL::addFlight(const Flight& Flight){ Flights.push_back(Flight); FlightsNum++; } /*add Flighr * */ void FlightsTL:: addNewFlight(const string& origin , const string& destination,const double& depTime, const double& duration){ Flights.push_back(Flight(origin,destination,depTime,duration)); FlightsNum++; } /** ToString to display all flights and thier information * */ string FlightsTL:: toString()const{ return ""; } //__________________end of FlightsTL Implementation______________\\
and the TestDriver
C++ Syntax (Toggle Plain Text)
//--------------------------------------------------------------------------- #include <vcl.h> #pragma hdrstop #include<iostream> #include"Flights.h" using namespace std; //--------------------------------------------------------------------------- #pragma argsused int main(int argc, char* argv[]){ //Create a Flight object using argumets Flight b ("adl","mel",1.00,1.30); //Create a Flight object using no argumets Flight d; //Create FlightsTL object FlightsTL C; //Attempt to put Flight object into FlightsTL //there is an error when this line is uncommented C.addNewFlight("syd","per",1.00,1.30); cout<< "TESTING "<< d.toString()<<"\n"; system("pause"); return 0; } //---------------------------------------------------------------------------
if any other problems (potential or current) are found please let me know, and give me a help hand please.
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