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 6476

What is sparse file?

1 5056

How to set a variable in the environment list?

1 4838

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 102779

What is the Difference between Class and Struct?

Motorola,

10 13533

What is the Difference between Macro and ordinary definition?

Bosch, Cognizant, College School Exams Tests, Motorola,

3 26423

what are brk, sbrk?

Oracle,

1 7886

Why the use of alloca() is discouraged?

Oracle,

2 8410

Will Macros support multiple arguments ?

Oracle,

7 11766

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

Oracle,

3 6575

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

Oracle,

4 9156

#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 31807

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

6 20278

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 9486

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

TCS,

4 12607

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Un-Answered Questions { C }

What are the scope of static variables?

1135

Explain how many levels deep can include files be nested?

1041

Why is a semicolon (;) put at the end of every program statement?

1047

What is difference between stdio h and conio h?

1335

How can I find out if there are characters available for reading?

1081

What is the auto keyword good for?

1086

Write a code on reverse string and its complexity.

997

Difference between malloc() and calloc() function?

1153

what will be the output for the following main() { printf("hi" "hello"); }

10867

What are the 4 data types?

983

What is output redirection?

1181

What is #line?

1016

How do I use strcmp?

1034

What is printf () in c?

1028

What is meant by gets in c?

1120

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