Put int and float into a union : union « Data Types « C++ Tutorial

1. C++ Tutorial
2. Data Types
3. union

#include <iostream>
using namespace std; 
int main(void){
   union 
   {
     int my_data;
     float his_data;
   };

   my_data = 3;

   cout << "Value of my_data is " << my_data;

   his_data = 1.2345;

   cout << "\nValue of his_data is " << his_data;
}