wdebug.cpp
资源名称:CppPrimer.rar [点击查看]
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上传日期:2022-06-29
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文件大小:2k
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书籍源码
开发平台:
Visual C++
- /*
- * This file contains code from "C++ Primer, Fourth Edition", by Stanley B.
- * Lippman, Jose Lajoie, and Barbara E. Moo, and is covered under the
- * copyright and warranty notices given in that book:
- *
- * "Copyright (c) 2005 by Objectwrite, Inc., Jose 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 Contracts Department
- * 75 Arlington Street, Suite 300
- * Boston, MA 02216
- * Fax: (617) 848-7047
- */
- #include <cassert>
- #include <string>
- #include <iostream>
- using std::endl; using std::cerr; using std::cin;
- using std::string;
- int main()
- {
- #ifndef NDEBUG
- cerr << "starting main" << endl;
- #endif
- // ...
- string word = "foo";
- const string::size_type threshold = 5;
- if (word.size() < threshold)
- cerr << "Error: " << __FILE__
- << " : line " << __LINE__ << endl
- << " Compiled on " << __DATE__
- << " at " << __TIME__ << endl
- << " Word read was "" << word
- << "": Length too short" << endl;
- word = "something longer than five chars";
- assert(word.size() > threshold);
- return 0;
- }