Unions

Syntax:

union type_name {
    field_type1 field_name1;
    field_type2 field_name2;
    field_type3 field_name3;
    .
    .
} variables_with_this_type;

All its member elements occupy the same physical space in memory.

The size of this type is the one of the largest member element.

We can use according to how we want to access these bytes.