C++ pointer to base class

#include <cstdlib>
#include <ctime>
#include <iostream>
#include <vector>

class Parent {
public:
    virtual void sayHi()
    {
        std::cout << "Parent here!" << std::endl;
    }
};

class Child : public Parent {
public:
    void sayHi()
    {
        std::cout << "Child here!" << std::endl;
    }
};

class DifferentChild : public Parent {
public:
    void sayHi()
    {
        std::cout << "DifferentChild here!" << std::endl;
    }
};

int main()
{
    std::vector<Parent*> parents;

    // Add 10 random children
    srand(time(NULL));
    for (int i = 0; i < 10; ++i) {
        int child = rand() % 2; // random number 0-1
        if (child) // 1
            parents.push_back(new Child);
        else
            parents.push_back(new DifferentChild);
    }

    // Call sayHi() for each type! (example of polymorphism)
    for (const auto& child : parents) {
        child->sayHi();
    }

    return 0;
}

Similar codes

2 votes162 views2 answers
Hide terminal window c++
C++
0 vote165 views1 answer
Ascii allowed in c++
C++
0 vote144 views1 answer
Min element in stl c++
C++
0 vote153 views1 answer
Amusia
C++
0 vote238 views1 answer
#defie in c++
C++
0 vote141 views1 answer
C code to c++ converter
C++
3 votes156 views1 answer
Differentialble programming
C++
1 vote190 views1 answer
C++ directory listing
C++
5 votes151 views1 answer
How to find 2d vector length cpp
C++
0 vote149 views1 answer
PI IN C++ WITH CMATH
C++