Loop and object intialization question (C++) - c++

Question

I'm trying to use a loop to infinitely create objects from a class unless a specific input is entered. I think I have everything done except the loop. I know how to initialize one object in my main function, but I'm stuck as to how to use a loop to do this infinitely. My code is below.
Driver File:
#include <iostream>
#include "square.h"
using namespace std;
int main()
{
square square1;
square1.setSide();
square1.calcArea();
square1.calcPerimeter();
square1.showData();
}
Header file:
#pragma once
#include <string>
class square
{
public:
square();
void setSide();
double getSide() const;
void calcPerimeter();
void calcArea();
void showData();
private:
double squareSide;
double squarePerimeter;
double squareArea;
};
Implementation file:
#include <iostream>
#include <iomanip>
#include "square.h"
square::square()
{
squareSide = 0;
squarePerimeter = 0;
squareArea = 0;
}
void square::setSide()
{
std::cout << "Enter a side length: ";
std::cin >> squareSide;
std::cout << "\n";
if (squareSide == -1)
{
std::cout << "Exiting program.\n";
exit(-1);
}
while (std::cin.fail() || squareSide < 0)
{
std::cout << "\nYou must enter a positive number. Please try again.\n\n";
std::cin.clear();
std::cin.ignore(std::numeric_limits<std::streamsize>::max(), '\n');
std::cout << "Enter a side length: ";
std::cin >> squareSide;
}
}
double square::getSide() const
{
return squareSide;
}
void square::calcPerimeter()
{
squarePerimeter = 4 * getSide();
}
void square::calcArea()
{
squareArea = getSide() * getSide();
}
void square::showData()
{
std::cout << "The side length of the square is: " << getSide() << "\n";
std::cout << "The perimeter of the square is: " << getSide() * 4 << "\n";
std::cout << "The area of the square is: " << getSide() * getSide() << "\n";
}

Answer 1

You could add a do ... while loop around your code in main and store the squares in a vector<square>.
Example:
#include <limits> // you use numeric_limits from this header
#include <utility> // move
#include <vector> // vector
int main() {
std::vector<square> squares;
std::string answer;
do {
square square1;
square1.setSide();
square1.calcArea();
square1.calcPerimeter();
// move the square into the vector
squares.push_back(std::move(square1));
// ask the user if he/she wants to enter another
std::cout << "Go again? ";
} while(std::cin >> answer && answer == "yes");
// display what you stored
std::cout << "You stored " << squares.size() << " square(s)\n";
for(square& sq : squares) {
sq.showData();
std::cout << '\n';
}
}