test

#include <iostream>

class cl_1
{
public:
    cl_1(void) {};
    ~cl_1() {};
    void publicMethod1() {
            std::cout << "cl_1::publicMethod1" << std::endl;
    };
    void publicMethod2() {
            std::cout << "cl_1::publicMethod2" << std::endl;
    };
};

class cl_2 : public cl_1
{
public:
    cl_2(void) {};
    ~cl_2() {};
private:
    void publicMethod2() {
        std::cout << "cl_2::publicMethod2" << std::endl;
    };
};

int main()
{
    cl_1 m_cl_1;
    cl_2 m_cl_2;
    m_cl_2.publicMethod1();
    m_cl_2.publicMethod2();
    return 0;
}