Data Structures Using C, 2nd Edition by Pearson

52 Data Structures Using C

1.16.4 Returning Values from Functions

Earlier in this chapter, we have used functions which either return no value or integer values. The

functions that return no value are declared as void. We have been prefixing int to functions which return

integer values. This is valid but unnecessary because the default return value of a function in C is of

type int. Thus, the following two declarations are equivalent in the sense that we need not prefix int to a

function which returns an integer value.

int add (int a, int b);

add (int a, int b);

On the other hand, whenever a function returns non-integer values, the ...