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annotate liboctave/array/Array-b.cc @ 33639:65b1cf6aa60a bytecode-interpreter tip

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maint: Merge default to bytecode-interpreter
author Arun Giridhar <arungiridhar@gmail.com>
date Mon, 03 Jun 2024 14:38:47 -0400
parents 2e484f9f1f18
children
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1 ////////////////////////////////////////////////////////////////////////
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2 //
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3 // Copyright (C) 1996-2024 The Octave Project Developers
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4 //
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5 // See the file COPYRIGHT.md in the top-level directory of this
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6 // distribution or <https://octave.org/copyright/>.
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7 //
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8 // This file is part of Octave.
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9 //
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10 // Octave is free software: you can redistribute it and/or modify it
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11 // under the terms of the GNU General Public License as published by
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12 // the Free Software Foundation, either version 3 of the License, or
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13 // (at your option) any later version.
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14 //
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15 // Octave is distributed in the hope that it will be useful, but
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16 // WITHOUT ANY WARRANTY; without even the implied warranty of
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17 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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18 // GNU General Public License for more details.
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19 //
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20 // You should have received a copy of the GNU General Public License
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21 // along with Octave; see the file COPYING. If not, see
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22 // <https://www.gnu.org/licenses/>.
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23 //
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24 ////////////////////////////////////////////////////////////////////////
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25
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26 #if defined (HAVE_CONFIG_H)
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27 # include "config.h"
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28 #endif
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29
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30 // Instantiate Arrays of bool values.
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31
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32 #include "Array.h"
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33
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34 // Prevent implicit instantiations on some systems (Windows, others?)
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35 // that can lead to duplicate definitions of static data members.
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36
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37 extern template class OCTAVE_EXTERN_TEMPLATE_API Array<octave::idx_vector>;
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38 extern template class Array<octave_idx_type>;
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39
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40 #include "Array-base.cc"
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41
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42 #define INLINE_ASCENDING_SORT 1
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43 #define INLINE_DESCENDING_SORT 1
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44 #include "oct-sort.cc"
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45
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46 // Specialize bool sorting (aka stable partitioning).
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47
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48 template <bool desc>
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49 static void
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50 do_bool_partition (bool *data, octave_idx_type nel)
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51 {
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52 octave_idx_type k = 0;
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53 for (octave_idx_type i = 0; i < nel; i++)
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54 if (data[i] == desc)
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55 data[k++] = desc;
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56 for (octave_idx_type i = k; i < nel; i++)
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57 data[i] = ! desc;
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58 }
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59
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60 template <bool desc>
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61 static void
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62 do_bool_partition (bool *data, octave_idx_type *idx,
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63 octave_idx_type nel)
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64 {
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65 // FIXME: This is essentially a simple bucket sort.
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66 // Can it be efficiently done by std::partition?
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67 OCTAVE_LOCAL_BUFFER (octave_idx_type, jdx, nel);
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68 octave_idx_type k = 0;
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69 octave_idx_type l = 0;
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70 for (octave_idx_type i = 0; i < nel; i++)
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71 {
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72 if (data[i] == desc)
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73 {
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74 data[k] = desc;
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75 idx[k++] = idx[i];
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76 }
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77 else
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78 jdx[l++] = idx[i];
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79 }
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80
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81 for (octave_idx_type i = k; i < nel; i++)
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82 {
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83 data[i] = ! desc;
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84 idx[i] = jdx[i-k];
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85 }
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86 }
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87
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88 template <>
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89 template <>
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90 void
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91 octave_sort<bool>::sort (bool *data, octave_idx_type nel,
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92 std::less<bool>)
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93 {
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94 do_bool_partition<false> (data, nel);
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95 }
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96
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97 template <>
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98 template <>
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99 void
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100 octave_sort<bool>::sort (bool *data, octave_idx_type nel,
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101 std::greater<bool>)
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102 {
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103 do_bool_partition<true> (data, nel);
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104 }
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105
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106 template <>
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107 template <>
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108 void
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109 octave_sort<bool>::sort (bool *data, octave_idx_type *idx, octave_idx_type nel,
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110 std::less<bool>)
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111 {
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112 do_bool_partition<false> (data, idx, nel);
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113 }
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114
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115 template <>
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116 template <>
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117 void
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118 octave_sort<bool>::sort (bool *data, octave_idx_type *idx, octave_idx_type nel,
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119 std::greater<bool>)
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120 {
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121 do_bool_partition<true> (data, idx, nel);
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122 }
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123
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124 template class octave_sort<bool>;
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125
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126 INSTANTIATE_ARRAY (bool, OCTAVE_CLASS_TEMPLATE_INSTANTIATION_API);
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127
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128 template OCTAVE_API std::ostream& operator << (std::ostream&,
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129 const Array<bool>&);
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130
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131 #include "DiagArray2.h"
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132 #include "DiagArray2.cc"
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133
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134 template class DiagArray2<bool>;