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:
#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
#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
//---------------------------------------------------------------------------
#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.
