C Programming and Technical

output?
Q. What are the advantages of using Unions?

A. (i) Efficient use of memory as it it does not demand memory space for its all members rather it require memory space for its largest member only.
(ii) Same memory space can be interpreted differently for different members of the union.

Read Solution (Total 0)

C Other Question

output?
Q. What is difference between Structure and Unions?

A. (i) In structure every member has its own memory whereas in union its members share the same member space.
(ii) In structure, it is possible to initialize all the members at the same time which is not
possible in case of union.
(iii) A structure requires more space than union(for the same type of members).
(iv) In union different nterpretations of the same memory space are possible which is not so in case of structures output?
Q. What is the difference between ordinary variable and pointer in C?

A. An ordinary variable is like a container it can hold any value and we can change the value of ordinary variable at a time throughout the program .A pointer is a variable that stores the address of another Variable.