Using the sizeof operator for base class and derived class : sizeof « Operators statements « C++ Tutorial

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C++ Tutorial » Operators statements » sizeof

3.6.5.Using the sizeof operator for base class and derived class

#include <iostream>

#include <ostream>



class base {};

class derived : public base {};



int main()

{

  using namespace std;

  cout << sizeof(base)  << '\n';      

  cout << sizeof(derived)  << '\n';   

  base b[3];

  

  cout << sizeof(b) << '\n';          

  derived d[5];

  cout << sizeof(d) << '\n';          

}

3.6.sizeof
	3.6.1.	Demonstrate sizeof.
	3.6.2.	sizeof a union
	3.6.3.	sizeof a class
	3.6.4.	Object sizes
	3.6.5.	Using the sizeof operator for base class and derived class
	3.6.6.	Use sizeof operator on an array name: returns the number of bytes in the array

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