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//Download by http://www.NewXing.com /* * 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 "assoc_preamble.h" #include "seq_preamble.h" #include <fstream> using std::ifstream; void restricted_wc(ifstream &remove_file, map<string, int> &word_count) { set<string> excluded; // set to hold words we'll ignore string remove_word; while (remove_file >> remove_word) excluded.insert(remove_word); // print contents of the word exclusion set for (set<string>::iterator set_it = excluded.begin(); set_it != excluded.end(); ++set_it) cout << *set_it << endl; // read input and keep a count for words that aren't in the exclusion set string word; while (cin >> word) // increment counter only if the word is not in excluded if (!excluded.count(word)) ++word_count[word]; } // call with the name of the exclusion set file int main(int argc, char **argv) { ifstream remove_file; open_file(remove_file, argv[1]); // file of words to ignore map<string, int> word_count; restricted_wc(remove_file, word_count); // get iterator positioned on the first element map<string, int>::iterator map_it = word_count.begin(); // for each element in the map while (map_it != word_count.end()) { // print the element key, value pairs cout << map_it->first << " occurs " << map_it->second << " times" << endl; ++map_it; // increment iterator to denote the next element } return 0; }