In which applications union can be useful?

The basic advantage is that union will use the memory space of the datatype which has the highest memory …. hence memory consumption will be less…But when u use structure the total memory will be the sum of the memory of all datatypes.. ie. (higher memory allocation)Disadvantage is that…..

The basic advantage is that union will use the memory space of the datatype which has the highest memory …. hence memory consumption will be less…But when u use structure the total memory will be the sum of the memory of all datatypes.. ie. (higher memory allocation)Disadvantage is that…..

Advantages of Union Union takes less memory space as compared to the structure . Only the largest size data member can be directly accessed while using a union. It is used when you want to use less (same) memory for different data members.

If you want to use same memory location for two or more members, union is the best for that . Unions are similar to the structure. Union variables are created in same manner as structure variables. The keyword “union” is used to define unions in C language.

If you want to use same memory location for two or more members, union is the best for that . Unions are similar to the structure. Union variables are created in same manner as structure variables. The keyword “union” is used to define unions in C language.

The primary use of a union is allowing access to a common location by different data types , for example hardware input/output access, bitfield and word sharing, or type punning. Unions can also provide low-level polymorphism.

The primary use of a union is allowing access to a common location by different data types , for example hardware input/output access, bitfield and word sharing, or type punning. Unions can also provide low-level polymorphism.