Hi everyone,
A couple of questions, please. 1) In my Airports class I am trying to get input data from a text file and put it inside the variables of an airport object that I'm going to create. 2) Then I'm going to try and store my Airport objects inside a map container with a key being the Airport code. This is what it looks like so far.
This is my header file:
#ifndef AIRPORTS_
#define AIRPORTS_
#include <iostream>
#include <string>
#include <vector>
#include <sstream>
#include <iterator>
#include <map>
#include"Flights.h"
using namespace std;
class Airports{
std::istream& operator (std::istream&, Airport::Airport&);
};
#endif /*AIRPORTS_*/this is the CPP file:
#include <iostream>
#include <string>
#include "Airports.h"
istream& Airports:: operator (istream& ins, Airport::Airports:: Airport& airport ){
// Notice how this operator does not need to be 'friend' to Airport
string s;
int h, m;
// Get Flight Code
ins >> s;
airport.setCode( s );
// Get scheduled arrival time
ins >> h;
if (ins.get() != ':')
{
ins.setstate( ios::badbit );
return ins;
}
ins >> m;
airport.setMinimumConnect( (double)(h % 24) + (m / 60.0) );
// Get the description for humans
ins >> ws;
getline( ins, s );
airport.setDescription( s );
return ins;
}
// This is where the list of airline flight data is stored using airport code (to access airport information)
map<Airport::Airport> airport_flights;
map<Airport,string> mymap;
map<Airport,string>::iterator it;
// How many data do we need to read?
int num_flights;
cin >> num_flights;
cin.ignore( std::numeric_limits <std::streamsize> ::max(), '\n' );
// Read exactly that many
copy_n(
std::istream_iterator <Airport::Airport> ( cin ),
num_flights,
std::back_insert_iterator <Airport::Airport> ( airport_flights )
);the above code doesn't compile.
these are the classes that the Airports class is using. the code below does compile and works:
#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 string &dep, const string &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
*
*/
string Flight:: getDepartureTime()const{
return depTime;
}
/* get duration
*
*/
string 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(string c){
depTime = c;
}
/* get duration
*
*/
void Flight:: setDuration(string d){
dura = d;
}
/* set all
*
*/
void Flight:: setAll(string a,string b,string c,string 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"+ getDepartureTime() + "\t"+ getDuration() +"\n" ;
return s;
}
//__________________end of Flight implementation_____________\\
//__________________Start of of FlightsTL implementation_____________\\
//Start House-keeping functions
/*Default constructor
*
*/
Airport:: Airport (){
setCode("");
setMinimumConnect(0);
setDescription("");
}
/* Constructor for Airport object
*
*
*/
Airport:: Airport(const string& code, const double& minCon, const string& description){
setCode(code);
setMinimumConnect(minCon);
setDescription(description);
}
/* copy constructor for Airport object
*
*
*/
// Airport(const Airport& rhs);
/**destructor for Airport object
*
*
*/
Airport:: ~Airport(){
}
//end House-keeping functions\\
//_________________Start of other Airport functions___________________________\\
/* Equals operation
*
*/
Airport& Airport:: operator=(const Airport& rhs){
return *this;
}
/* get minimum connection
*
*/
double Airport:: getMinimumConnectionTime()const{
return minConnect;
}
/* get Code
*
*/
string Airport:: getCode()const{
return code;
}
/* get description
*
*/
string Airport:: getDescription()const{
return description;
}
/*get number of Flights
*
*/
int Airport:: getFlightsNum(){
return FlightsNum;
}
/* set minimum connection time
*
*/
void Airport:: setMinimumConnect (double a){
minConnect =a;
}
/* set code
*
*/
void Airport:: setCode (string b){
code = b;
}
/* set description
*
*/
void Airport:: setDescription (string c){
description = c;
}
/* set all
*
*/
void Airport:: setAll (string a,double b,string c){
setMinimumConnect(b) ;
setCode(a);
setDescription(c);
}
void Airport::addFlight(const Flight& Flight){
Flights.push_back(Flight);
FlightsNum++;
}
/*add Flight
*
*/
void Airport:: addNewFlight(const string& origin , const string& destination,const string& depTime, const string& duration){
Flights.push_back(Flight(origin,destination,depTime,duration));
FlightsNum++;
}
/** ToString to display all flights and thier information
*
*/
string Airport:: toString(){
vector<Flight>::iterator find;
string str;
if (getFlightsNum() == 0) {
return "Nothing to show no Flights" ;
}
for(find = Flights.begin(); find != Flights.end(); find++){
str+=(*find).toString();
}
string s;
double mCon = getMinimumConnectionTime();
// convert double to string
char mConStr[50];
sprintf(mConStr,"%g",mCon);
// print all Airport information
s=getCode() +"\t"+ mConStr + "\t"+ getDescription() + "\n" ;
return str + s;
}
//__________________end of FlightsTL Implementation______________\\
//I'm thinking of adding remove(), and clear() and add via textThanks for your help, guys.
Jay F
