How do you modify a getValue?

[Brandon23z]

So I need to sort all of the getPrice array values in order by price in ascending order. The ones I need to cout are supposed to be under $25,000. I need to cout them in order of price too.

The thing is, to sort the cells, I have to set them to a temporary value, because obviously,

array[1]=array[2]
array[2]=array[1]

This does not work. I am using a temporary value instead:

temp=array[1]
array[1]=array[2]
array[2]=temp

The thing is, when I use cars[i].getPrice()

temp= cars[i].getPrice();								cars[i].getPrice() = cars[j].getPrice();								cars[j].getPrice() = temp;
[/code[

It is not modifiable. I understand the error, I just don't know what to do to fix it. Do I have to make a new variable for each cell in the array?

What should I do to cout them in order of price? I already have the rest of my code done:

[code]
#include <iostream>
#include <string>
#include <sstream>
#include "car.h"
using namespace std;

const int number=2;
const int maxPrice=25000;

int main()
{
	int a;
	string b; string c;
	float d; float e;

	car cars [number];
	int i, j;
	int temp;
		
	for(i=0; i<number; i++)
	{
		cout << "Enter the YEAR of the car: ";
		cin >> a;
		cars[i].setYear(a);
		cout << "Enter the MAKE of the car: ";
		cin >> b;
		cars[i].setMake(b);
		cout << "Enter the MODEL of the car: ";
		cin >> c;
		cars[i].setModel(c);
		cout << "Enter the number of MILES on the car: ";
		cin >> d; 
		cars[i].setMiles(d);
		cout << "Enter the PRICE of the car: ";
		cin >> e;
		cars[i].setPrice(e);
		cout << " " << endl;
	}	

	cout << "Cars listed under $25,000: " << endl;
	for(int i=0; i<number; i++) //For loop to test all car prices.
		{
			if(cars[i].getPrice() < maxPrice) //Finds all under $25,000.
				{
					for (i=0; i<(number-1); i++)    //Comparing the first cell...
						{
							for(j=(i+1); j<number; j++)   //To the rest of the cells.
								{
									if (cars[i].getPrice() < cars[j].getPrice)          // descending order
										{
											temp= cars[i].getPrice();          // swap
											cars[i].getPrice() = cars[j].getPrice();
											cars[j].getPrice() = temp;
										}
								}
						}

					cout << "Year: " << cars[i].getYear() << endl;
					cout << "Make: " << cars[i].getMake() << endl;
					cout << "Model: " << cars[i].getModel() << endl;
					cout << "Miles: " << cars[i].getMiles() << endl;
					cout << "Price: $" << cars[i].getPrice() << endl;
					cout << " " << endl;
					cout << "This is a " << cars[i].getYear() << " " << cars[i].getMake() << " " << cars[i].getModel() << " with " << cars[i].getMiles() << " miles on it, for $" << cars[i].getPrice() << "." << endl;
					cout << " " << endl;
				}
		}
	system("pause");
}; 

I totally understand why it is not modifiable, it's because I am getting that value from a single source. It's like saying we have 10 apples, but telling people we have 15. It just doesn't work. So how can I modify it? I just need to order the array cells in ascending order and then cout them.

EDIT: Also, what is a simple way to compare all cells to find the same values? If there is a tie in price, I need to cout the newer car first. So I need to find the ones that are the same, and then I can simply use the same algorithm that I used to order the price.

Thanks for the help.

[giblit]

You can return it as a reference or pointer instead of a copy then you can modify the value directly.