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C Interview Questions
Questions Answers Views Company eMail

what does ‘Bus Error’ mean?


1 3663

Define function pointers?

1 2670

How do you initialize function pointers? Give an example?

3 3557

where can function pointers be used?

2 3060

what are bitwise shift operators?

4 4897

what are bit fields? What is the use of bit fields in a structure declaration?

Flextronics, TISL, Virtusa,


what is the size of an integer variable?

4 4398

what are the files which are automatically opened when a c file is executed?

3 3902

what is the little endian and big endian?

1 2953

what is the use of fflush() function?

2 4861

what is the difference between exit() and _exit() functions?

2 5651

where does malloc() function get the memory?

1 3101

what is the difference between malloc() and calloc() function?

1 3281

what is the difference between postfix and prefix unary increment operators?

3 6109

what is the difference between strcpy() and memcpy() function?

2 4295

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Un-Answered Questions { C }

Do you have any idea how to compare array with pointer in c?


How can I sort more data than will fit in memory?


write a program that reads lines(using getline), converts each line to an integer using atoi, and computes the average of all the numbers read. also compute the standard deviation.


All technical questions


Explain what are the different data types in c?


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


What is the use of printf() and scanf() functions?


What are the advantages of Macro over function?


Explain the properties of union. What is the size of a union variable


Read N characters in to an array . Use functions to do all problems and pass the address of array to function. 1. Print only the alphabets . If in upper case print in lower case vice versa. 2. Enter alphanumeric characters and form 2 array alphaets and digits.Also print the count of each array. 3. Find the count of a certain character. 4. Print the positions where a certain character occured. 5. Print the characters between successive array elements. 6. Find the largest and smallest charcter. How many times it each one occured. 7. Enter a certain range. Print out the array elements which occured between these range. 8. Reverse a character array without using another array. 9. Reverse an array region. 10. Replace a the array elements with it next character . Use a after z. 11. Code the array element with certain character as first alphabet. 12. Duplicate all the vowels in a character array. What is the new count. 13. Delete the vowels in a character array. What is the new array count. 14. Print the count of all characters in the array. 15. Enter n alphabets and store a upto tht charcter in array.What is the array count? 16. Sort a character array. 17. Merge 2 character arrays largearray,smallarray. 18. Find the pair with largest number of characters in between. 19. Find the numerical value of a charcter array. 20. Store n numeral characters in an arrray. Insert another numeral character in a certain position. 21. Insert a character in a sorted array. 22. Merge 2 sorted arrays in sorted fashion. 23. Duplicate the least occuring character. 24. Write a menu driven program to circular right/left shift an array of n elements. 25. Is the character array palindrome? if not make it palindrome. 26. Concatenate the first n charaters to the end of the string. 27. Print all n group of chracters which are palindrome. 28. Concatneate the reverse of last n characters to the array.


What is a lookup table in c?


What is array in C


What does the error message "DGROUP exceeds 64K" mean?


What oops means?


What is an lvalue?