use_find.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 "algs_preamble.h"
- int main()
- {
- // use find to search an array
- int ia[6] = {27, 210, 12, 47, 109, 83};
- int search_value = 83;
- int *result = find(ia, ia + 6, search_value);
- cout << "The value " << search_value
- << (result == ia + 6
- ? " is not present" : " is present")
- << endl;
- // use find to search a vector
- {
- // initialize the vector with some values
- int ia[6] = {27, 210, 12, 47, 109, 83};
- vector<int> vec(ia, ia+6);
- // value we'll look for
- int search_value = 42;
- // call find to see if that value is present
- vector<int>::const_iterator result =
- find(vec.begin(), vec.end(), search_value);
- // report the result
- cout << "The value " << search_value
- << (result == vec.end()
- ? " is not present" : " is present")
- << endl;
- }
- // use find to search a list
- {
- list<int> lst(ia, ia+6);
- int search_value = 47;
- // call find to look through elements in a list
- list<int>::const_iterator result =
- find(lst.begin(), lst.end(), search_value);
- cout << "The value " << search_value
- << (result == lst.end()
- ? " is not present" : " is present")
- << endl;
- }
- return 0;
- }