#include "stdafx.h"
#include <iostream>
using namespace std;
class Point
{
public:
int x; int y;
Point(int _x, int _y)
{
x = _x;
y = _y;
cout << "Point constructor:(" << x << "," << y << ")" << endl;
}
~Point()
{
cout << "Point destructor:(" << x << "," << y << ")" << endl;
}
};
std::ostream& operator<< (std::ostream& stream, const Point& p) {
return stream << "(" << p.x << "," << p.y << ")" << endl;
}
double* CreateDoubles()
{
double* d = new double[3];
d[0] = 1.1;
d[1] = 2.2;
d[2] = 3.3;
return d;
}
Point** CreatePoints()
{
Point** p = new Point*[2];
p[0] = new Point(1, 2);
p[1] = new Point(3, 4);
return p;
}
void Test()
{
double* d = CreateDoubles();
cout << "Dynamically created doubles: " << d[0] << ", " << d[1] << ", " << d[2] <<endl <<endl;
delete[] d;
Point** p = CreatePoints();
cout << "Dynamically created Points: " << endl;
cout << *p[0] << endl;
cout << *p[1] << endl;
delete p[0];
delete p[1];
delete[] p;
}
int main()
{
Test();
getchar();
return 0;
}
12 January 2019
C++ How to dynamically create an array of objects
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