Data Structures Using C, 2nd Edition by Pearson

44 Data Structures Using C

int add (int x, int y)

{

int temp;

temp = x + y;

return temp;

}

In the above function, we have used a local variable temp to obtain the sum of x and y. The value con-

tained in temp is returned through return statement. In fact, variable temp has been used to enhance the read-

ability of the function only, otherwise it is unnecessary. The function can be optimized as shown below:

ind add (int x, int y)

{

return (x + y);

}

Thus, a function has following four elements:

(1) A name

(2) A body

(3) A return type

(4) An argument list

The name of the function has to be unique so that the compiler can identify it. The body ...