Answer Posted / c.p.senthil

#define SETBIT(num,bitpos) (num|(1<<bitpos))
#define CLRBIT(num,bitpos) (num&(~(1<<bitpos)))

int a = 0x03; // a = 00000011b = 0x03(3)
SETBIT(a, 3); // a = 00001011b [3rd bit set] = 0x0b(11)

int b = 0x25; // b = 00100101b = 0x25(37)
CLRBIT(b, 2); // b = 00100001b [2nd bit clear] = 0x21(33)

Tell us two differences between new () and malloc ()?

1275

---

p*=(++q)++*--p when p=q=1 while(q<=6)

1816

---

What is the difference between far and near in c?

1121

---

Why doesnt long int work?

1100

---

How can I recover the file name given an open stream?

1081

---

What is the use of pointers in C?

1134

---

Explain what is the difference between a string copy (strcpy) and a memory copy (memcpy)? When should each be used?

1148

---

What is use of pointer?

1172

---

How to find a missed value, if you want to store 100 values in a 99 sized array?

1463

---

Explain what is gets() function?

1120

---

Describe the complexity of Binary search, Quicksort and various other sorting and searching techniques..

1070

---

What is the method to save data in stack data structure type?

1147

---

Is c object oriented?

1016

---

Does c have an equivalent to pascals with statement?

1066

---

I have seen function declarations that look like this

1093

---