C Function Utility Function

Description

Click the following links for the tutorial for Function and Utility Function.

1. Encrypt and decrypt text
2. Make System Calls with system() function
3. Create your own card games to shuffle and deal cards for Poker games
4. Converting a Positive Integer to Another Base
5. Calculating Factorials Recursively
6. Counting the Characters in a String with your own function
7. Testing strings for equality with your own function
8. Concatenating Character Strings with function



9. converts a string of digits str into an equivalent integer.
10. counts the number of 1-bits in its integer argument:
11. removes all occurrences of the character ch from the string str:
12. converts an upper case letter into a lower case letter, and leaves lower case letter unchanged:
13. reads a line of text into a char array q and returns its length:
14. raises base to nth power where n is greater than or equal to zero:
15. Use the system() function to execute system command
16. Use assert() macro to check input



17. Using character test macros to create an integer input function.
18. Create a function to get the value of the integer x rotated to the right by n positions.
19. Create a function to invert bit from an integer
20. Create a function to set integer by bit
21. Create function power and a main program to exercise it
22. Create a temperature conversion program with a function for conversion.
23. Write and test a Fibonacci() function that uses a loop instead of recursion to calculate Fibonacci numbers.
24. Convert a decimal number to a number in a any base
25. Create a recursive power function.
26. Create a power() function that correctly handles negative powers.
27. Use assert() to check value
28. Using qsort to sort groups of numbers
29. Call atexit() function to register function