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 8688

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

7 14480

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

5 16055

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

1 4176

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

3 6101

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

2 8179

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

Satyam,

3 9043

What is the real difference between arrays and pointers?

Hexaware, Logic Pro, TCS,

27 66023

How do I declare a pointer to an array?

IBM,

6 14224

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

9 14488

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

Aloha Technology,

2 8670

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

8 20952

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

4 8755

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

1 6600

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

3 6168

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Un-Answered Questions { C }

What language is c written?

1054

What are different storage class specifiers in c?

1096

main() { int i = 10; printf(" %d %d %d ", ++i, i++, ++i); }

1158

what is the height of tree if leaf node is at level 3. please explain

2153

What is the use of sizeof?

1021

Is fortran still used in 2018?

1040

Why is c so important?

1065

Hai,I have done with my bachelor of commerce and planing to ms,please suggest me how to convince vo for shifting from commerce to computers. Visa on 8 DEC 2014 Npu university

2044

What is the use of void pointer and null pointer in c language?

1127

Is it valid to address one element beyond the end of an array?

1175

How do I determine whether a character is numeric, alphabetic, and so on?

1136

if a is an integer variable, a=5/2; will return a value a) 2.5 b) 3 c) 2 d) 0

1948

Why we use int main and void main?

1081

What does sizeof return c?

1065

How can I do peek and poke in c?

1080

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