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

C Interview Questions

Questions Answers Views Company eMail

what is output of the following statetment?Printf(“%x”, -1<<4); ?

5 9203

will the program compile? int i; scanf(“%d”,i); printf(“%d”,i);

3 5494

write a string copy function routine?

2 4993

swap two integer variables without using a third temporary variable?

Persistent,

6 10561

how do you redirect stdout value from a program to a file?

1 3592

write a program that finds the factorial of a number using recursion?

Infosys, TATA,

13 34244

write a “Hello World” program in “c” without using a semicolon?

CTS, TCS, Wipro,

9 15117

Give a method to count the number of ones in a 32 bit number?

4 5769

write a program that print itself even if the source file is deleted?

2 8045

Given an unsigned integer, find if the number is power of 2?

5 8809

what is the difference between these initializations? Char a[]=”string”; Char *p=”literal”; Does *p++ increment p, or what it points to?

4 7926

differentiate between const char *a; char *const a; and char const *a;

College School Exams Tests, HCL, TCS,

2 7683

Why cann't whole array can be passed to function as value.

1 3897

Given a single Linked list with lakhs of nodes and length unknown how do you optimally delete the nth element from the list?

Oracle,

1 4569

What is the relation between # and include

HCL,

5 8944

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Un-Answered Questions { C }

Explain what is a stream?

1092

What are external variables in c?

1107

How do you view the path?

1126

If one class contains another class as a member, in what order are the two class constructors called a) Constructor for the member class is called first b) Constructor for the member class is called second c) Only one of the constructors is called d) all of the above

1065

application attempts to perform an operation?

1978

What is infinite loop?

1088

Why are some ANSI/ISO Standard library routines showing up as undefined, even though I've got an ANSI compiler?

1133

write a program to print data of 5 five students with structures?

2048

What is the heap in c?

1083

WHICH TYPE OF JOBS WE GET BY WRITING GROUPS .WHEN THE EXAMS CONDUCTED IS THIS EXAMS ARE CONDUCTED EVERY YEAR OR NOT.PLS TELL ME THE ANSWER

1868

What are enumerated types?

1194

When can you use a pointer with a function?

1069

Why use int main instead of void main?

1125

What would be an example of a structure analogous to structure c?

1000

Difference between constant pointer and pointer to a constant.

1147

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