C++ How to Program, 10/e

9.1 Introduction

This chapter takes a deeper look at classes. We use Time, Date and Employee class case studies, and other examples, to demonstrate several class construction capabilities. We begin with a Time class engineered to separate its interface from its implementation for reuse. The example also demonstrates using an include guard in a header to prevent header code from being included in the same source code file more than once, which typically results in compilation errors. In addition, class Time uses an ostringstream to create string representations of the time in standard and universal time formats. We also explain the compilation and linking process from the standpoint of the class-implementation programmer, the client-code programmer ...