C Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

C Interview Questions

Questions Answers Views Company eMail

which one of follwoing will read a character from keyboard and store in c a)c=getc() b)c=getchar() c)c=getchar(stdin) d)getc(&c) e)none

Trident,

7 23923

what is disadvantage of pointer in C

Tech Mahindra,

13 29159

ABCDCBA ABC CBA AB BA A A

TCS,

4 19552

which one is highest Priority in c? a)=,b)+,c)++,d)==

4 6963

which one low Priority in c? a)=,b)++,c)==,d)+

10 11800

What are data breakpoints?

Adobe,

3 9400

What are bit fields? What is their use?

Adobe,

2 6507

Write code for atoi(x) where x is hexadecimal string.

Adobe,

5 26661

Write code for finding depth of tree

Adobe,

2 6480

Two's compliment of -5

Adobe,

4 9432

CopyBits(x,p,n,y) copy n LSBs from y to x starting LSB at 'p'th position.

Adobe,

9 12634

what's the return value of malloc()

9 16218

I have written a pro*C program to fetch data from the cursor. where in i have used the concept of BULK FETCH.... each FETCH statement is taking lots of time to fetch specified number of rows at...

10215

What are the average number of comparisons required to sort 3 elements?

DRDO,

2 7025

Is it possible to run a c program without using main?If yes HOW??

Wipro,

13 20666

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Un-Answered Questions { C }

How can you increase the size of a dynamically allocated array?

1198

Write a program to replace n bits from the position p of the bit representation of an inputted character x with the one's complement. Method invertBit takes 3 parameters x as input character, p as position and n as the number of positions from p. Replace n bits from pth position in 8 bit character x. Then return the characters by inverting the bits.

4221

What are variables and it what way is it different from constants?

1250

How many loops are there in c?

1118

What is pass by reference in c?

1192

What is main return c?

1007

Why is c fast?

1074

Are local variables initialized to zero by default in c?

1057

Explain how do you override a defined macro?

1085

what is the differnce between programing langauge and tool? is sas is a programing langauge r tool?

2398

What is the difference between far and near in c?

1076

Can I use base-2 constants (something like 0b101010)? Is there a printf format for binary?

1009

What are the types of unary operators?

1195

write a programming in c to find the sum of all elements in an array through function.

2184

Explain how can I right-justify a string?

1053

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