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1 // Copyright 2002 The Trustees of Indiana University.
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2
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3 // Use, modification and distribution is subject to the Boost Software
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4 // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
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5 // http://www.boost.org/LICENSE_1_0.txt)
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6
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7 // Boost.MultiArray Library
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8 // Authors: Ronald Garcia
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9 // Jeremy Siek
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10 // Andrew Lumsdaine
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11 // See http://www.boost.org/libs/multi_array for documentation.
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12
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13 #ifndef BOOST_EXTENT_RANGE_RG071801_HPP
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14 #define BOOST_EXTENT_RANGE_RG071801_HPP
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15
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16 #include <utility>
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17
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18 namespace boost {
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19 namespace detail {
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20 namespace multi_array {
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21
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22 template <typename Extent, typename SizeType>
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23 class extent_range : private std::pair<Extent,Extent> {
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24 typedef std::pair<Extent,Extent> super_type;
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25 public:
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26 typedef Extent index;
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27 typedef SizeType size_type;
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28
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29 extent_range(index start, index finish) :
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30 super_type(start,finish) { }
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31
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32 extent_range(index finish) :
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33 super_type(0,finish) { }
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34
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35 extent_range() : super_type(0,0) { }
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36
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37 index start() const { return super_type::first; }
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38
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39 index finish() const { return super_type::second; }
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40
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41 size_type size() const { return super_type::second - super_type::first; }
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42 };
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43
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44 } // namespace multi_array
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45 } // namespace detail
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46 } // namespace boost
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47
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48
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49 #endif // BOOST_EXTENT_RANGE_RG071801_HPP
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