Answer Posted / nishit jain

There is no question of which one is better. Both are there
for different functionality. Structures find more usage in
day-today programming, while unions are used less often.
There are examples where structure may not solve the purpose
but unions will work without much effort. Example :
packing-unpacking of data can be done using unions easily.

Is it better to use a macro or a function?

1101

---

Draw a flowchart to produce a printed list of all the students over the age of 20 in a class .The input records contains the name and age of students. Assume a sentinel value of 99 for the age field of the trailer record

5160

---

What is the main difference between calloc () and malloc ()?

1100

---

What is spark map function?

1060

---

Is there a way to compare two structure variables?

1064

---

What are reserved words with a programming language?

1060

---

What does typeof return in c?

1024

---

a character or group of characters that defines a register,or a part of storage a) memory b) byte c) address d) linear list

969

---

When should the const modifier be used?

1062

---

Do you know the use of fflush() function?

1016

---

#include int main(){ int i=10; int *ptr=&i; *ptr=(int *)20; printf("%d",i); return 0; } Output: 20 can anyone explain how came the output is 20

1682

---

What is the advantage of a random access file?

1134

---

What is the correct code to have following output in c using nested for loop?

1030

---

Why main is not a keyword in c?

1179

---

What are the advantages of using macro in c language?

1074

---