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 swap two values without using a temporary?

1059

How do I send escape sequences to control a terminal or other device?

1013

What should malloc() do?

1100

How do I round numbers?

957

Here is a neat trick for checking whether two strings are equal

967

How can I change their mode to binary?

1050

If null and 0 are equivalent as null pointer constants, which should I use?

1119

How do I create a directory? How do I remove a directory (and its contents)?

1098

How can a process change an environment variable in its caller?

1127

I have seen function declarations that look like this

993

How can I find out the size of a file, prior to reading it in?

1099

What is a pointer variable in c language?

1036

How can I do peek and poke in c?

1037

Did c have any year 2000 problems?

1062

What is the correct declaration of main?

1153

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Un-Answered Questions { C }

What are keywords in c with examples?

1038

How can I rethow can I return a sequence of random numbers which dont repeat at all?

1147

What is 'bus error'?

1090

What do you mean by a sequential access file?

1041

Why pointers are used in c?

945

What is the value of c?

1008

What is the 'named constructor idiom'?

1031

Explain how can I convert a string to a number?

1024

Can we declare variables anywhere in c?

947

Do variables need to be initialized?

991

What is the difference between fread and fwrite function?

1033

Explain the term printf() and scanf() used in c language?

999

any C program contains only one function, it must be a) void () b) main () c) message () d) abc ()

1074

What is static memory allocation? Explain

1032

What is the use of f in c?

933

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