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

C Interview Questions

Questions Answers Views Company eMail

What are the different pointer models in c?

4 6482

What is sparse file?

1 5067

How to set a variable in the environment list?

1 4845

How to reverse a string using a recursive function, without swapping or using an extra memory?

Cisco, Mind Tree, Motorola, Ophio, Sony, TCS, Wipro,

31 102832

What is the Difference between Class and Struct?

Motorola,

10 13555

What is the Difference between Macro and ordinary definition?

Bosch, Cognizant, College School Exams Tests, Motorola,

3 26432

what are brk, sbrk?

Oracle,

1 7894

Why the use of alloca() is discouraged?

Oracle,

2 8418

Will Macros support multiple arguments ?

Oracle,

7 11774

what about "char *(*(*a[])())();"

Oracle,

3 6592

Go through the following code sinippet char a[20]; a="Hello Orcale Test"; will this compile?

Oracle,

4 9164

#include #define sqr(x) (x*x) int main() { int x=2; printf("value of x=%d",sqr(x+1)); } What is the value of x?

Accel Frontline, Opera, Oracle,

16 31826

1 232 34543 4567654 can anyone tell me how to slove this c question

6 20288

Determine the code below, tell me exactly how many times is the operation sum++ performed ? for ( i = 0; i < 100; i++ ) for ( j = 100; j > 100 - i; j--) sum++;

ITCO, Wipro,

5 9500

int main() { int *p=new int; *p=10; del p; cout<<*p; *p= 60; cout<<*p; } what will be the output & why?

TCS,

4 12624

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Un-Answered Questions { C }

Write a program to print factorial of given number using recursion?

975

Calculate the weighted average of a list of n numbers using the formula xavg = f1x1+f2x2+ ….+ fnxn where the f’s are fractional weighting factors, i.e., 0<=fi<1, and f1+f2+….+fn = 1

4211

Why is c known as a mother language?

1200

What are the different types of endless loops?

1043

What are structural members?

973

How can I handle floating-point exceptions gracefully?

1131

What are the scope of static variables?

1139

What is meant by keywords in c?

1046

What are formal parameters?

1081

Here is a good puzzle: how do you write a program which produces its own source code as output?

1058

What is "Hungarian Notation"?

1051

Explain output of printf("Hello World"-'A'+'B'); ?

1455

How can you read a directory in a C program?

1110

What is a header file?

1047

What is a null string in c?

1004

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