Answer Posted / hemanth

5
10
2

What does #pragma once mean?

693

---

What is p in text message?

546

---

What is variable and explain rules to declare variable in c?

560

---

Why can’t we compare structures?

818

---

Explain what is a 'null pointer assignment' error? Explain what are bus errors, memory faults, and core dumps?

650

---

---

Define macros.

791

---

What is the difference between struct and union in C?

580

---

What is the purpose of the following code? Is there any problem with the code? void send(int count, short *to, short *from) { /* count > 0 assumed */ register n = (count + 7) / 8; switch (count % 8) { case 0: do { *to = *from++; case 7: *to = *from++; case 6: *to = *from++; case 5: *to = *from++; case 4: *to = *from++; case 3: *to = *from++; case 2: *to = *from++; case 1: *to = *from++; } while (--n > 0); } }

1962

---

How is a structure member accessed?

592

---

Why do we write return 0 in c?

557

---

main(){char *str;scanf("%s",str);printf("%s",str); }The error in the above program is: a) Variable 'str' is not initialised b) Format control for a string is not %s c) Parameter to scanf is passed by value. It should be an address d) none

733

---

How can I write a function analogous to scanf?

662

---

Explain how does flowchart help in writing a program?

636

---

What are local static variables? How can you use them?

651

---

Differentiate between #include<...> and #include '...'

623

---