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C / ANSI-C » Function » Function Screenshots  Function declaration    #include <stdio.h> int area(int l, int w);  int main(void) {   printf("area is %d", area(100, 130));   return 0; } int area(l, w) int l, w; {   return l * w; }                     Related examples in the same category 1. Define function to sum 2. Definition of the function to calculate an average 3. Demonstraction of function call 4. Function call 5. Check out the int value change before and after function call 6. Define function to multiply two int 7. Uses a function prototype to enforce strong type checking 8. Serve as a prototype within this program 9. Define function and use it: square 10. Function: Print a string in uppercase 11. A program with two functions 12. This program has three functions 13. Define function and use it 14. Return statement 15. Assign function return value to a variable 16. A simple program that demonstrates sum() 17. Define function to output char 18. Function to output square 19. Define two functions and call them in main 20. Function which returns int value 21. Define function with void return 22. Define function to calculate the ounces and cups 23. Define function to calculate the volumn 24. Function prototype: declare getnum() prior to its first use 25. Define function and return value 26. Define function with parameter and return value 27. Function call each other 28. Define two functions and make function call 29. Global and local variable inside function 30. Function prototype