User Defined Functions

What if we make our own functions..

1. First we need function prototype. It tells C++, "Hey, I will make my own function!"

2. name of the function

--> myfunc

3. (declare the type of arguments)

: void myfunc(int);

===> This should be above the main function

4. Find the function and pretty much make the function

void myfunc(int x)

{

using namespace std;

cout<<"My favorite number is "<< x << endl; 

}

5. call the function

int main()

{

using namespace std;

int num;

cin>>num;        //input from the user

myfunc(num);

system("pause");

return 0;

}

Now we can return values in Functions..

int dyear(int);    //prototype

int dyear(int d)

{

return 7 * d;    //if d=7 --> 49

}