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

C Interview Questions

Questions Answers Views Company eMail

WAP – represent a char in binary format

Motorola, Wipro,

4 8871

what is memory leak?

3 7763

what is the difference between and "stdio.h"

Invendis, Kanbay, Mastek, MathWorks,

14 58400

which will be first in c compiling ,linking or compiling ,debugging.

Sonata,

3 8935

Write a program in C to convert date displayed in gregorian to julian date

HCL, Wipro,

2800

difference between memcpy and strcpy

1 12851

What's the best way to declare and define global variables?

7 15094

What does extern mean in a function declaration?

4 38128

How do I declare an array of N pointers to functions returning pointers to functions returning pointers to characters?

2 10812

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

4 13122

What is the difference between char a[] = "string"; and char *p = "string"; ?

Adobe, Honeywell, TCS,

14 45907

How do I initialize a pointer to a function?

2 11854

What's the difference between struct x1 { ... }; and typedef struct { ... } x2; ?

3 10253

Can I pass constant values to functions which accept structure arguments?

2 8880

Why doesn't the code "a[i] = i++;" work?

4 13711

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Un-Answered Questions { C }

What are the different types of linkage exist in c?

1035

Can we declare a function inside a function in c?

1048

For what purpose null pointer used?

1086

What are the types of type qualifiers in c?

1093

I heard that you have to include stdio.h before calling printf. Why?

1077

Why static variable is used in c?

1042

Write a program to reverse a given number in c?

1046

Can a pointer be static?

1091

A global variable when referred to in another file is declared as this a) local variable b) external variable c) constant d) pointers

1210

What is the use of header?

1099

How can you access memory located at a certain address?

1131

What is the difference between printf and scanf in c?

1366

Explain about block scope in c?

1099

Write the control statements in C language

1219

What is a memory leak? How to avoid it?

1357

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