A union is a user-defined type similar to structs in C except for one key difference . Structures allocate enough space to store all their members, whereas unions can only hold one member value at a time.
Read moreWhat is structure difference between structures and unions?
Difference between Structure and Union StructUnionThe structure allows initializing multiple variable members at once.Union allows initializing only one variable member at once.It is used to store different data type values.It is used for storing one at a time from different data type values.Difference between Structure and Union – javatpoint www.javatpoint.com › structure-vs-union
Read more