How to implement call back functions ?

Answer Posted / priya

In computer programming, a callback is executable code that is passed as an argument to other code
Function Pointers provide the concept of callback functions.

Is This Answer Correct ?    1 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

In C programming, how do you insert quote characters (‘ and “) into the output screen?

889


Tell me the use of bit field in c language?

626


What is p in text message?

536


Hai,I have done with my bachelor of commerce and planing to ms,please suggest me how to convince vo for shifting from commerce to computers. Visa on 8 DEC 2014  Npu university

1594


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.

3340






What is assignment operator?

620


What is C language ?

1524


A routine usually part of the operation system that loads a program into memory prior to execution a) linker b) loader c) preprocessor d) compiler

622


What is strcpy() function?

652


What is typedef?

663


Explain main function in c?

622


What is use of bit field?

768


Given two strings S1 and S2. Delete from S2 all those characters which occur in S1 also and finally create a clean S2 with the relevant characters deleted.

831


What is ctrl c called?

588


What is the use of header?

616