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C Interview Questions
Questions Answers Views Company eMail

What are Storage Classes in C ?

CTS, HP, IBM, Maharaja Whiteline, Tamil Nadu Open University TNOU, TATA, TCS, Wipro,

32 127516

How the processor registers can be used in C ?

HP,

7 18656

What is an volatile variable?

HP,

15 40234

How to access or modify the const variable in c ?

HCL, HP,

16 42919

What is structure padding ?

HP,

3 32961

What is structure packing ?

HP,

2 15869

How to implement call back functions ?

HP,

3 12219

What is an anonymous union and where to apply that ?

HP,

3 12012

How to implement variable argument functions ?

HP,

1 10216

What are advantages and disadvantages of recursive calling ?

College School Exams Tests, Evolving Systems, HP, Jyoti Ltd, Sage, Wipro,

12 103740

How the C program can be compiled?

HP,

11 24497

What are the preprocessors?

HP,

9 19964

what are the various memory handling mechanisms in C ?

HP,

4 13557

what is a function pointer and how all to declare ,define and implement it ???

Honeywell,

4 12898

Give a fast way to multiply a number by 7

Accenture, Aricent, Microsoft,

15 51963


Post New C Questions

Un-Answered Questions { C }

What is the sizeof () operator?

1016


What are the functions to open and close the file in c language?

985


The purpose of this exercise is to benchmark file writing and reading speed. This exercise is divided into two parts. a). Write a file character by character such that the total file size becomes approximately >10K. After writing close the file handler, open a new stream and read the file character by character. Record both times. Execute this exercise at least 4 times b). Create a buffer capable of storing 100 characters. Now after generating the characters, first store them in the buffer. Once the buffer is filled up, store all the elements in the file. Repeat the process until the total file size becomes approximately >10K.While reading read a while line, store it in buffer and once buffer gets filled up, display the whole buffer. Repeat the exercise at least 4 times with different size of buffer (50, 100, 150 …). Records the times. c). Do an analysis of the differences in times and submit it in class.

2021


What is the difference between array and structure in c?

1084


Write a program to reverse a given number in c language?

1049


Write a program to print fibonacci series using recursion?

1006


Why do we use pointer to pointer in c?

1020


Write a C Program That Will Count The Number Of Even And Odd Integers In A Set using while loop

2106


which of the following is not a character constant a) 'thank you' b) 'enter values of p, n ,r' c) '23.56E-o3' d) all of the above

2006


I need a help with a program: Write a C program that uses data input in determining the whole of points A and a whole of circles B. Find two points in A so that the line which passes through them, cut through the maximum number of circles.

1892


What are the two forms of #include directive?

1099


Why #include is used in c language?

993


Explain null pointer.

1040


Write a program to replace n bits from the position p of the bit representation of an inputted character x with the one's complement. Method invertBit takes 3 parameters x as input character, p as position and n as the number of positions from p. Replace n bits from pth position in 8 bit character x. Then return the characters by inverting the bits.

4149


What is the purpose of main( ) in c language?

1089