队列未添加对象-C++11

我有两个自定义类，Passenger和Elevator，包含在Passenger.h头文件中：

#include <iostream>
#include <queue>
#include <vector>
using namespace std;
class Passenger
{
public:
explicit Passenger(int startTime, int startFloor, int endFloor, int waitTime){
this->startTime = startTime;
this->startFloor = startFloor;    
this->endFloor = endFloor;
this->waitTime = waitTime;
}//end constructor
void increaseWait(int increase){
this->waitTime += increase;
}
int getWait(){
return this->waitTime;
}
int startTime, startFloor, endFloor, waitTime;
}; //end passenger

class Elevator
{
public:
explicit Elevator(string the){
status = "STOPPED";
passengerCount = 0;
name = the;        
}//end constructor
int addtoQueue(Passenger person){
if (this->passengerCount < 8){
this->pickupQueue.push(person);
return 0;
}else{
cout << "Error -- full" << endl;
return 1;
} //end
} //end addtoQueue
void changePassengerCount(int change){
passengerCount += change;
}
string getStatus(){
return status;
}
void setStatus(string status){
status = status;
}
void addStop(int location){
stops.push(location);
}
int getStops(){
return stops.size();
}
string getName(){
return name;
}
int getRoute(){
return stops.front();
}
bool checkCount(){
if (passengerCount > 8){
return false;
}else{
return true;
}
}
int printCount(){
return passengerCount;
}
void printQueue(){
queue<int> copy = stops;
while(!copy.empty()){
cout << copy.front() << " ";
copy.pop();
}
cout << endl;
}
private:
string status;
queue<Passenger> pickupQueue;
int passengerCount;
queue<int> stops;
string name;
}; //end passenger

我正在将一个csv文件读取到Passenger对象的vector中，然后我想做的是用这些Passenger对象填充每个Elevator对象中的一些queue对象。然而，Elevator类中似乎没有任何对象在实际更新。例如，passengerCount和Queue Size从不超过1。我不明白为什么。

#include <iostream>
#include <fstream>
#include <string>
#include <vector>
#include <sstream>
#include "Passenger.h"
using namespace std;
int time = 0;
int main(){
vector<Passenger> passengers;
Elevator elevatorOne = Elevator("elevatorOne");
Elevator elevatorTwo = Elevator("elevatorTwo");
Elevator elevatorThree = Elevator("elevatorThree");
Elevator elevatorFour = Elevator("elevatorFour");
vector<Elevator> elevators;
elevators.push_back(elevatorOne);
elevators.push_back(elevatorTwo);
elevators.push_back(elevatorThree);
elevators.push_back(elevatorFour);
// Code removed when building the vector of passengers by reading in the csv
for(unsigned int i = 0; i < passengers.size(); i++){
//cout << "Currently evaluating passenger: " << i << endl;
for (Elevator currElevator : elevators){
// If the elevator hasn't moved
// This is one of three logic checks, but the others have been removed at the request of SO users
if(currElevator.getStatus().compare("STOPPED") == 0 && currElevator.getStops() == 0 && currElevator.checkCount() == true){                
// Add the passenger's end floor to the current elevator's queue
cout << "adding passenger " << i << " to elevator: " << currElevator.getName() << " because of condition 1 " << endl;
currElevator.addStop(passengers[i].endFloor);
currElevator.changePassengerCount(1);
cout << "Queue Size: " << currElevator.getStops() << endl;
cout << "Passenger Count: " << currElevator.printCount() << endl;
if(passengers[i].endFloor > currElevator.getRoute()){
currElevator.setStatus("MOVING UP");
} else{
currElevator.setStatus("MOVING DOWN");
}
break;                     
} //end if
else{
// If none of these conditions match, move on to the next elevator
continue;
} //end else
} //end looping through elevators
} //end looping through passengers
} //end main

我得到的结果如下：

adding passenger 0 to elevator: elevatorOne because of condition 1
Queue Size: 1
Passenger Count: 1
adding passenger 1 to elevator: elevatorOne because of condition 1
Queue Size: 1
Passenger Count: 1
adding passenger 2 to elevator: elevatorOne because of condition 1
Queue Size: 1

但我们期待看到：

adding passenger 0 to elevator: elevatorOne because of condition 1
Queue Size: 1
Passenger Count: 1
adding passenger 1 to elevator: elevatorOne because of condition 1
Queue Size: 2
Passenger Count: 2
adding passenger 2 to elevator: elevatorOne because of condition 1
Queue Size: 3
Passenger Count: 3

etc