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

C Interview Questions

Questions Answers Views Company eMail

what is the difference between #include and #include "stdio.h" ?

3 8999

Why preprocessor should come before source code?

2 4605

What is a far pointer?What is the utility?

4 6354

Difference between null pointer and dangling pointer?

GE, Wipro,

7 22209

1. Write the function int countchtr(char string[ ], int ch); which returns the number of times the character ch appears in the string. Example, the call countchtr(“She lives in NEWYORK”, ‘e’) would return 3.

4 7009

what are the languages used in c#?

Infosys,

3 5560

write an algorithm to get a sentence and reverse it in the following format: input : I am here opuput: Here Am I note: first letter of every word is capiatlised

3 6206

write a 'c' program to sum the number of integer values

8 16376

How to convert a binary number to Hexa decimal number?? (Note:Do not convert it into binary and to Hexadecimal)

iLantus, Subex,

1 7343

Find the middle node in the linked list?? (Note:Do not use for loop, count and count/2)

Subex,

6 13037

hw can we delete an internal node of binary search tree the internal node has child node..plz write progarm

TCS,

1982

I use turbo C which allocates 2 bytes for integers and 4 bytes for long. I tried to declare array of size 500000 of long type using the following code... long *arr; arr=(long *)(malloc)(500000 * sizeof(long)); It gives a warning that "Conversion may lose significant digits in function main"... And the resulting array size was very less around 8400 as compared to 500000. Any suggestions will be welcomed....

2 5573

Total of how many functions are available in c?

3 5952

size maximum allocated by calloc()

DELL,

3 8729

we all know about the function overloading concept used in C++ and we all learnt abt that.... but that concept is already came in C in a very smaller propotion ... my question is IN WHICH CONCEPT THERE IS A USE OF FUNCTION OVERLOADING IS USED in C language?????????????

Google,

4 7561

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Un-Answered Questions { C }

Can you apply link and association interchangeably?

1083

Explain Basic concepts of C language?

1092

How can I direct output to the printer?

1284

Explain 'bit masking'?

1037

write a program in c language to print your bio-data on the screen by using functions.

6749

What is the purpose of the preprocessor directive error?

1217

Whatâ€™s the special use of UNIONS?

1121

Tell me when is a void pointer used?

1121

write a c programming using command line argument,demonstrate set operation(eg;union,intersection,difference) example output is c:>setop 12 34 45 1 union 34 42 66 c:>setop 12 34 1 42 66 c:>setop 12 34 diff 12 56 67 78 setop 12 34

2128

Define circular linked list.

984

Is c a great language, or what?

1067

What is c token?

1026

explain what are pointers?

973

What is sizeof int in c?

1015

Not all reserved words are written in lowercase. TRUE or FALSE?

1198

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