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

C Interview Questions

Questions Answers Views Company eMail

How can I find the day of the week given the date?

2274

Why doesn't C have nested functions?

2 9054

What is the most efficient way to count the number of bits which are set in a value?

4 14970

How can I convert integers to binary or hexadecimal?

2 9244

How can I call a function, given its name as a string?

ABC Telecom,

4 12169

How do I access command-line arguments?

Bosch, Wipro,

2 9684

How can I return multiple values from a function?

6 9083

How can I invoke another program from within a C program?

8 25163

How can I access memory located at a certain address?

Verizon,

3 10295

How can I allocate arrays or structures bigger than 64K?

5 14630

How can I find out how much memory is available?

Persistent,

1 8714

How can I read a directory in a C program?

Bright Outdoor, Wipro,

2 7889

How can I increase the allowable number of simultaneously open files?

ABC,

1 5781

What's wrong with the call "fopen ("c:\newdir\file.dat", "r")"?

1 10293

Is the following code legal? struct a { int x; struct a b; }

4 13203

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Un-Answered Questions { C }

how can f be used for both float and double arguments in printf? Are not they different types?

1033

Linked lists -- can you tell me how to check whether a linked list is circular?

1041

What do you mean by scope of a variable in c?

986

What is meant by initialization and how we initialize a variable?

1016

please explain clearly about execution of c program in detail,in which stage are the printf sacnf getting into exeecutable code

2147

What is the right type to use for boolean values in c?

1006

What is a const pointer?

1058

What is p in text message?

949

What is your stream meaning?

1151

What is declaration and definition in c?

1039

What is use of bit field?

1257

Write a program to identify if a given binary tree is balanced or not.

1107

What is the size of enum in c?

1077

Write a program to display all the prime nos from 1 to 1000000, your code should not take time more than a minute to display all the nos.

2021

Can you subtract pointers from each other? Why would you?

927

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