C++Primer_5th第一章用到的头文件Sales_item.h .pdfVIP

C++Primer_5th第⼀章⽤到的头⽂件Sales_item.h //头⽂件：Sales_item.h /* * This file contains code from C++ Primer, Fifth Edition, by Stanley B. * Lippman, Josee Lajoie, and Barbara E. Moo, and is covered under the * copyright and warranty notices given in that book: * * Copyright (c) 2013 by Objectwrite, Inc., Josee Lajoie, and Barbara E. Moo. * * * The authors and publisher have taken care in the preparation of this book, * but make no expressed or implied warranty of any kind and assume no * responsibility for errors or omissions. No liability is assumed for * incidental or consequential damages in connection with or arising out of the * use of the information or programs contained herein. * * Permission is granted for this code to be used for educational purposes in * association with the book, given proper citation if and when posted or * reproduced.Any commercial use of this code requires the explicit written * permission of the publisher, Addison-Wesley Professional, a division of * Pearson Education, Inc. Send your request for permission, stating clearly * what code you would like to use, and in what specific way, to the following * address: * * Pearson Education, Inc. * Rights and Permissions Department * One Lake Street * Upper Saddle River, NJ 07458 * Fax: (201) 236-3290 */ /* This file defines the Sales_item class used in chapter 1. * The code used in this file will be explained in * Chapter 7 (Classes) and Chapter 14 (Overloaded Operators) * Readers shouldnt try to understand the code in this file * until they have read those chapters. */ #ifndef SALESITEM_H // were here only if SALESITEM_H has not yet been defined #define SALESITEM_H //#include Version_test.h // Definition of Sales_item class and related functions goes here #include iostream #include string class Sales_item { // these declarations are explained section 7.2.1, p. 270 // and in chapter 14,