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C++ | Create an empty class (a class without data members and member functions)

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C++ | Create an empty class (a class without data members and member functions)

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In the below program, we are creating a C++ program to create an empty class (a class without data members and member functions).

#include <iostream>

using namespace std;

// class definition
class Person {};

// main function
int main() {
  //object creation
  Person per;
  
  // here - we are printing size of the object
  cout << "size of per: " << sizeof(per) << endl;
  
  return 0;
}

Output

size of per: 1
 

See the program – here class named Person doesn't have any data member and member function – it will be known as an empty class.

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