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42 lines
1.3 KiB
C++
42 lines
1.3 KiB
C++
// (C) Copyright Jeremy Siek 2000-2004.
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// Distributed under the Boost Software License, Version 1.0. (See
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// accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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#include <boost/config.hpp>
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#include <iostream>
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#include <algorithm>
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#include <boost/iterator/reverse_iterator.hpp>
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#include <boost/cstdlib.hpp>
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int main(int, char*[])
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{
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char letters_[] = "hello world!";
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const int N = sizeof(letters_)/sizeof(char) - 1;
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typedef char* base_iterator;
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base_iterator letters(letters_);
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std::cout << "original sequence of letters:\t\t\t"
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<< letters_ << std::endl;
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// Use reverse_iterator to print a sequence of letters in reverse
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// order.
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boost::reverse_iterator<base_iterator>
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reverse_letters_first(letters + N),
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reverse_letters_last(letters);
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std::cout << "sequence in reverse order:\t\t\t";
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std::copy(reverse_letters_first, reverse_letters_last,
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std::ostream_iterator<char>(std::cout));
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std::cout << std::endl;
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std::cout << "sequence in double-reversed (normal) order:\t";
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std::copy(boost::make_reverse_iterator(reverse_letters_last),
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boost::make_reverse_iterator(reverse_letters_first),
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std::ostream_iterator<char>(std::cout));
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std::cout << std::endl;
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return boost::exit_success;
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}
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