Union

Application of union in C++. A union allows storing different data types in the same memory location. The size of the union is determined by the largest member. Here, we define a union named Converter that can hold either an int or a float. The union's size is the size of the largest member, which is float in this case. Accessing the members of a union is done through the same memory location, The last written member determines the value of the union. In this example, we write a float value and then read it as an int. This is a demonstration of how unions can be used to interpret the same memory in different ways.