C++ How to Program, Ninth Edition

6. Functions and an Introduction to Recursion

Form ever follows function.

—Louis Henri Sullivan

E pluribus unum. (One composed of many.)

—Virgil

O! call back yesterday, bid time return.

—William Shakespeare

Answer me in one word.

—William Shakespeare

There is a point at which methods devour themselves.

—Frantz Fanon

Objectives

In this chapter you’ll learn:

• To construct programs modularly from functions.

• To use common math library functions.

• The mechanisms for passing data to functions and returning results.

• How the function call/return mechanism is supported by the function call stack and activation records.

• To use random number generation to implement game-playing applications.

• How the visibility of identifiers is limited to specific ...