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

C Interview Questions

Questions Answers Views Company eMail

What's a "sequence point"?

3 7008

Why doesn't the code "int a = 1000, b = 1000; long int c = a * b;" work?

7 11761

What's wrong with "char *p; *p = malloc(10);"?

5 13922

I have a function which accepts, and is supposed to initialize,a pointer, but the pointer in the caller remains unchanged.

1 3391

I have a function which accepts a pointer to an int. How can I pass a constant like 5 to it?

3 4949

What does a run-time "null pointer assignment" error mean?

2 7096

what is meant by the "equivalence of pointers and arrays" in C?

Satyam,

3 7803

What is the real difference between arrays and pointers?

Hexaware, Logic Pro, TCS,

27 58635

How do I declare a pointer to an array?

IBM,

6 11881

How can I set an array's size at run time?

9 11557

When you call malloc() to allocate memory for a local pointer, do you have to explicitly free() it?

Aloha Technology,

2 7526

How does free() know how many bytes to free?

8 18252

What's the difference between calloc() and malloc()?

4 7041

What is alloca() and why is its use discouraged?

1 5790

What are .h files and what should I put in them?

3 5009

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Un-Answered Questions { C }

Can a void pointer point to a function?

560

Why do we use int main?

596

How do you list files in a directory?

553

Explain what is wrong with this program statement? Void = 10;

754

How do you redirect a standard stream?

615

Iam a B.Tech graduate and completed my engineering in 2009, from 2005 to 2009 and after that i had done nothing.Now i want to do job and get into BPO field . Friends give me suggestions as what to say in interview... if they ask me that what would you had done ... these many years without doing job ??????? pls urgent

1421

C program execution always begins with a) #include b) comment (/*-------*/) c) main() d) declaration instructions

599

What is the difference between struct and typedef struct in c?

638

Synonymous with pointer array a) character array b) ragged array c) multiple array d) none

605

How macro execution is faster than function ?

656

How important is structure in life?

580

Why double pointer is used in c?

559

What is the total generic pointer type?

714

write a c program thal will find all sequences of length N that produce the sum is Zero, print all possible solutions?

2400

What are the advantages of using macro in c language?

581

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