iostream_iter.cpp
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上传日期:2022-06-29
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书籍源码
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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 "Sales_item.h"
- #include "algs_preamble.h"
- int main()
- {
- istream_iterator<int> cin_it(cin); // reads ints from cin
- istream_iterator<int> end_of_stream; // end iterator value
- // initialize vec from the standard input:
- vector<int> vec(cin_it, end_of_stream);
- sort(vec.begin(), vec.end());
- // writes ints to cout using " " as the delimiter
- ostream_iterator<int> output(cout, " ");
- // write only the unique elements in vec to the standard output
- unique_copy(vec.begin(), vec.end(), output);
- cout << endl; // write a newline after the output
- return 0;
- }
- void read_write() {
- ofstream outfile;
- outfile.open("dictionary");
- // write a sequence of strings to the ofstream named outfile
- // placing each string on a separate line
- ostream_iterator<string> os_string(outfile, "n");
- istream_iterator<int> input(cin), eof;
- ostream_iterator<int> output(cout);
- while (input != eof)
- *output++ = *input++;
- }