A Laboratory Course in C++, 5th Edition

Prelab Activities

Review

In Chapter 8, we said that local variables are those declared within a block. The block

does not have to be the body of a function—local identifiers can be declared within any

block. In a large program, there may be several variables with the same identifier—

name, for example. How do we know which variable is meant and where each variable

is accessible? The answers to these questions are provided by scope rules.

Scope of an Identifier

There are four categories of scope for an identifier in C++: class scope, local scope,

namespace scope, and global scope. Class scope is defined in Chapter 11. Local scope is

the scope of an identifier ...