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104 lines
3.2 KiB
C++
104 lines
3.2 KiB
C++
#ifndef BOOST_ALGORITHM_RG071801_HPP
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#define BOOST_ALGORITHM_RG071801_HPP
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//
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//
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// Copyright (c) 1994
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// Hewlett-Packard Company
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//
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// Permission to use, copy, modify, distribute and sell this software
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// and its documentation for any purpose is hereby granted without fee,
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// provided that the above copyright notice appear in all copies and
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// that both that copyright notice and this permission notice appear
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// in supporting documentation. Hewlett-Packard Company makes no
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// representations about the suitability of this software for any
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// purpose. It is provided "as is" without express or implied warranty.
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//
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//
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// Copyright (c) 1996-1998
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// Silicon Graphics Computer Systems, Inc.
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//
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// Permission to use, copy, modify, distribute and sell this software
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// and its documentation for any purpose is hereby granted without fee,
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// provided that the above copyright notice appear in all copies and
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// that both that copyright notice and this permission notice appear
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// in supporting documentation. Silicon Graphics makes no
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// representations about the suitability of this software for any
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// purpose. It is provided "as is" without express or implied warranty.
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//
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// Copyright 2002 The Trustees of Indiana University.
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// Use, modification and distribution is subject to the Boost Software
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// License, Version 1.0. (See 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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// Boost.MultiArray Library
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// Authors: Ronald Garcia
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// Jeremy Siek
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// Andrew Lumsdaine
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// See http://www.boost.org/libs/multi_array for documentation.
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#include "boost/iterator.hpp"
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namespace boost {
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namespace detail {
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namespace multi_array {
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//--------------------------------------------------
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// copy_n (not part of the C++ standard)
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#if 1
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template <class InputIter, class Size, class OutputIter>
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OutputIter copy_n(InputIter first, Size count,
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OutputIter result) {
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for ( ; count > 0; --count) {
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*result = *first;
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++first;
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++result;
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}
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return result;
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}
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#else // !1
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template <class InputIter, class Size, class OutputIter>
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OutputIter copy_n__(InputIter first, Size count,
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OutputIter result,
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std::input_iterator_tag) {
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for ( ; count > 0; --count) {
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*result = *first;
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++first;
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++result;
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}
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return result;
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}
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template <class RAIter, class Size, class OutputIter>
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inline OutputIter
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copy_n__(RAIter first, Size count,
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OutputIter result,
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std::random_access_iterator_tag) {
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RAIter last = first + count;
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return std::copy(first, last, result);
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}
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template <class InputIter, class Size, class OutputIter>
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inline OutputIter
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copy_n__(InputIter first, Size count, OutputIter result) {
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typedef typename std::iterator_traits<InputIter>::iterator_category cat;
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return copy_n__(first, count, result, cat());
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}
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template <class InputIter, class Size, class OutputIter>
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inline OutputIter
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copy_n(InputIter first, Size count, OutputIter result) {
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return copy_n__(first, count, result);
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}
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#endif // 1
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} // namespace multi_array
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} // namespace detail
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} // namespace boost
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#endif // BOOST_ALGORITHM_RG071801_HPP
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