Built in function

its helps to know built in function

1. Welcome To Your Presentation Topic Name : Built in Function

2. Presented By Group Member ID Tania Akter 0111-61-035 MD. Rayhanul Islam 0111-61-036 Saddam Hossain 0111-61-037

3. Function : A function is a group of statements that together perform a task.   A function is a block of code that performs a calculation and returns a value. Every C program has at least one function, which is  main()

4. Classification of Function : User define function Library function or Built-in function Function

5. What is Library Function or Built-in Function?? Built in functions are the functions that are provided by C library.  These functions perform file access, mathematical computations, graphics, memory management etc. Defined in a special header file.  A function that is built into an application and can be accessed by end-users.

6. Built-in Fuction Header Files:

7. < stdio.h > Library Functions Source Code :

8. < conio.h > Lbrary Functions Source Code :

9. < string.h > Library Functions Source Code:

10. < math.h > Library Functions Source Code :

11. < time.h > Library Functions Source Code :

12. Advantages : It helps in making the code very simple and much more easier to handle.  A function may be used by many other programs. You can use it over and over without retyping the code  Less code for more  Helps organize your code 

13. Disadvantages: I think functions are sometimes difficult to handle and can confuse the programmer in handling different tasks.

14. Programing in Built-in Function : #include< stdio.h > main() { printf ("Welcome To Your Presentation"); } Sample Output :

15. Thank you