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 8805

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

7 14741

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

5 16232

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

1 4252

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

3 6213

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

2 8295

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

Satyam,

3 9176

What is the real difference between arrays and pointers?

Hexaware, Logic Pro, TCS,

27 66766

How do I declare a pointer to an array?

IBM,

6 14440

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

9 14767

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

Aloha Technology,

2 8754

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

8 21238

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

4 8955

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

1 6691

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

3 6298

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Un-Answered Questions { C }

What is #pragma statements?

1158

What is a lookup table in c?

1173

How can I make it pause before closing the program output window?

1080

What is a constant?

1112

a c code by using memory allocation for add ,multiply of sprase matrixes

2862

What are different storage class specifiers in c?

1137

Is c pass by value or reference?

1104

What are the types of variables in c?

1080

Explain what is wrong with this statement? Myname = ?robin?;

1638

Is there a way to have non-constant case labels (i.e. Ranges or arbitrary expressions)?

1127

Can we declare variables anywhere in c?

1054

What is define c?

1156

‎How to define structures? · ‎

1147

What is the meaning of 2d in c?

1167

show how link list can be used to repersent the following polynomial i) 5x+2

2397

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