Ch3.1: Empty

Statement Review

In C++, a statement ends with a semicolon. The simplest possible statement is just:

;

This is called an empty statement. It does nothing, but it is still valid.

Key takeaways

• Statements end with ;: every C++ statement must end with a semicolon.
• Empty statement: a lone ; is a valid statement that does nothing.
• Still meaningful: empty statements sometimes appear in loops or by accident.