Effective C

5CONTROL FLOW

In this chapter, you’ll learn how to control the order in which individual statements are evaluated. We’ll start by going over expression statements and compound statements that define the work to be performed. We’ll then cover three kinds of statements that determine which code blocks are executed, and in what order: selection, iteration, and jump statements.

Expression Statements

An expression statement is an optional expression terminated by a semicolon. It is one of the most common kinds of statements and a basic unit of work. Listing 5-1 shows examples of expression statements.

a = 6; c = a + b; ;  // null statement, does nothing ...