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C++ Primer Plus by Stephen Prata

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A Namespace Example

Let’s take a look at a multifile example that demonstrates some of the features of namespaces. The first file in this example (see Listing 9.11) is a header file that contains some items normally found in header files—constants, structure definitions, and function prototypes. In this case, the items are placed in two namespaces. The first namespace, pers, contains a definition of a Person structure, plus prototypes for a function that fills a structure with a person’s name and a function that displays the structure’s contents. The second namespace, debts, defines a structure for storing the name of a person and the amount of money owed to that person. This structure uses the Person structure, so the debts namespace has a ...

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