| .. Copyright David Abrahams 2006. Distributed under the Boost |
| .. Software License, Version 1.0. (See accompanying |
| .. file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) |
| |
| Example |
| ....... |
| |
| The following example prints an array of characters in reverse order |
| using ``reverse_iterator``. |
| |
| :: |
| |
| char letters_[] = "hello world!"; |
| const int N = sizeof(letters_)/sizeof(char) - 1; |
| typedef char* base_iterator; |
| base_iterator letters(letters_); |
| std::cout << "original sequence of letters:\t\t\t" << letters_ << std::endl; |
| |
| boost::reverse_iterator<base_iterator> |
| reverse_letters_first(letters + N), |
| reverse_letters_last(letters); |
| |
| std::cout << "sequence in reverse order:\t\t\t"; |
| std::copy(reverse_letters_first, reverse_letters_last, |
| std::ostream_iterator<char>(std::cout)); |
| std::cout << std::endl; |
| |
| std::cout << "sequence in double-reversed (normal) order:\t"; |
| std::copy(boost::make_reverse_iterator(reverse_letters_last), |
| boost::make_reverse_iterator(reverse_letters_first), |
| std::ostream_iterator<char>(std::cout)); |
| std::cout << std::endl; |
| |
| |
| |
| The output is:: |
| |
| original sequence of letters: hello world! |
| sequence in reverse order: !dlrow olleh |
| sequence in double-reversed (normal) order: hello world! |
| |
| |
| The source code for this example can be found `here`__. |
| |
| __ ../example/reverse_iterator_example.cpp |