lifetime-scope-visibility-and-linkage.md

description	title	ms.date	ms.assetid
Learn more about: Lifetime, Scope, Visibility, and Linkage	Lifetime, Scope, Visibility, and Linkage	11/04/2016	c7678bb8-9d79-40ed-b352-abab876f0b17

Lifetime, Scope, Visibility, and Linkage

To understand how a C program works, you must understand the rules that determine how variables and functions can be used in the program. Several concepts are crucial to understanding these rules:

• Lifetime

• Scope and visibility

• Linkage

See also

Program Structure