C++

Topic: Inheritance

What is inherited from the base class?

In principle, a derived class inherits every member of a base class except:    its constructor and its destructor    its operator=() members    its friendsAlthough the constructors and destructors of the base class are not inherited themselves, its default constructor (i.e., its constructor with no parameters) and its destructor are always called when a new object of a derived class is created or destroyed.If the base class has no default constructor or you want that an overloaded constructor is called when a new derived object is created, you can specify it in each constructor definition of the derived class:derived_constructor_name (parameters) : base_constructor_name (parameters) {...}// constructors and derived classes#include <iostream>using namespace std;class mother {  public:    mother ()      { cout << "mother: no parameters\n"; }    mother (int a)      { cout << "mother: int parameter\n"; }};class daughter : public mother {  public:    daughter (int a)      { cout << "daughter: int parameter\n\n"; }};class son : public mother {  public:    son (int a) : mother (a)      { cout << "son: int parameter\n\n"; }};int main () {  daughter cynthia (0);  son daniel(0);    return 0;}	mother: no parametersdaughter: int parameter mother: int parameterson: int parameter

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