Mercurial > octave
annotate liboctave/array/Range.h @ 27923:bd51beb6205e
update formatting of copyright notices
* Use <https://octave.org/copyright/> instead of
<https://octave.org/COPYRIGHT.html/>.
* For consistency with other comments in the Octave sources, use
C++-style comments for copyright blocks in C and C++ files.
* Use delimiters above and below copyright blocks that are appropriate
for the language used in the file.
* Eliminate extra spacing inside copyright blocks.
* lex.ll (looks_like_copyright): Also allow newlines and carriage
returns before the word "Copyright".
* scripts/mk-doc.pl (gethelp): Also skip empty comment lines.
* bp-table.cc, type.m: Adjust tests.
author | John W. Eaton <jwe@octave.org> |
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date | Wed, 08 Jan 2020 11:59:41 -0500 |
parents | 1891570abac8 |
children | 403df0b32204 |
rev | line source |
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1 //////////////////////////////////////////////////////////////////////// |
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2 // |
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3 // Copyright (C) 1993-2020 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 //////////////////////////////////////////////////////////////////////// |
3 | 25 |
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26 #if ! defined (octave_Range_h) |
382 | 27 #define octave_Range_h 1 |
28 | |
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29 #include "octave-config.h" |
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30 |
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31 #include <iosfwd> |
7458 | 32 |
4810 | 33 #include "dMatrix.h" |
7458 | 34 #include "oct-sort.h" |
3 | 35 |
1860 | 36 class |
6108 | 37 OCTAVE_API |
1860 | 38 Range |
3 | 39 { |
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40 public: |
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1528 | 42 Range (void) |
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43 : rng_base (0), rng_limit (0), rng_inc (0), rng_numel (0), cache (1, 0) { } |
1528 | 44 |
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45 Range (const Range& r) = default; |
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46 |
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47 Range& operator = (const Range& r) = default; |
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48 |
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49 ~Range (void) = default; |
3 | 50 |
1528 | 51 Range (double b, double l) |
1860 | 52 : rng_base (b), rng_limit (l), rng_inc (1), |
20513 | 53 rng_numel (numel_internal ()), cache () |
54 { | |
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55 rng_limit = limit_internal (); |
20513 | 56 } |
1528 | 57 |
58 Range (double b, double l, double i) | |
1860 | 59 : rng_base (b), rng_limit (l), rng_inc (i), |
20513 | 60 rng_numel (numel_internal ()), cache () |
61 { | |
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62 rng_limit = limit_internal (); |
20513 | 63 } |
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65 // For operators' usage (to preserve element count). |
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66 Range (double b, double i, octave_idx_type n) |
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67 : rng_base (b), rng_limit (b + (n-1) * i), rng_inc (i), |
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68 rng_numel (n), cache () |
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69 { |
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70 if (! octave::math::isfinite (b) || ! octave::math::isfinite (i) |
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71 || ! octave::math::isfinite (rng_limit)) |
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72 rng_numel = -2; |
20513 | 73 else |
74 { | |
75 // Code below is only needed if the resulting range must be 100% | |
76 // correctly constructed. If the Range object created is only | |
77 // a temporary one used by operators this may be unnecessary. | |
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78 rng_limit = limit_internal (); |
20513 | 79 } |
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80 } |
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81 |
4811 | 82 double base (void) const { return rng_base; } |
1528 | 83 double limit (void) const { return rng_limit; } |
4811 | 84 double inc (void) const { return rng_inc; } |
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85 |
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86 octave_idx_type numel (void) const { return rng_numel; } |
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87 |
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88 octave_idx_type rows (void) const { return 1; } |
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89 |
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90 octave_idx_type cols (void) const { return numel (); } |
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91 octave_idx_type columns (void) const { return numel (); } |
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92 |
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93 bool isempty (void) const { return numel () == 0; } |
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94 |
2383 | 95 bool all_elements_are_ints (void) const; |
96 | |
645 | 97 Matrix matrix_value (void) const; |
98 | |
3 | 99 double min (void) const; |
100 double max (void) const; | |
101 | |
7458 | 102 void sort_internal (bool ascending = true); |
103 void sort_internal (Array<octave_idx_type>& sidx, bool ascending = true); | |
104 | |
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105 Matrix diag (octave_idx_type k = 0) const; |
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106 |
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107 Range sort (octave_idx_type dim = 0, sortmode mode = ASCENDING) const; |
7458 | 108 Range sort (Array<octave_idx_type>& sidx, octave_idx_type dim = 0, |
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109 sortmode mode = ASCENDING) const; |
208 | 110 |
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111 sortmode issorted (sortmode mode = ASCENDING) const; |
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112 |
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113 octave_idx_type nnz (void) const; |
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114 |
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115 // Support for single-index subscripting, without generating matrix cache. |
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116 |
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117 double checkelem (octave_idx_type i) const; |
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118 double checkelem (octave_idx_type i, octave_idx_type j) const; |
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119 |
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120 double elem (octave_idx_type i) const; |
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121 double elem (octave_idx_type /* i */, octave_idx_type j) const |
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122 { return elem (j); } |
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123 |
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124 double operator () (octave_idx_type i) const { return elem (i); } |
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125 double operator () (octave_idx_type i, octave_idx_type j) const |
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126 { return elem (i, j); } |
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127 |
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128 Array<double> index (const idx_vector& i) const; |
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129 |
20513 | 130 void set_base (double b); |
4811 | 131 |
20513 | 132 void set_limit (double l); |
4811 | 133 |
20513 | 134 void set_inc (double i); |
1528 | 135 |
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136 friend OCTAVE_API std::ostream& operator << (std::ostream& os, |
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137 const Range& r); |
6108 | 138 friend OCTAVE_API std::istream& operator >> (std::istream& is, Range& r); |
3 | 139 |
8971 | 140 friend OCTAVE_API Range operator - (const Range& r); |
141 friend OCTAVE_API Range operator + (double x, const Range& r); | |
142 friend OCTAVE_API Range operator + (const Range& r, double x); | |
143 friend OCTAVE_API Range operator - (double x, const Range& r); | |
144 friend OCTAVE_API Range operator - (const Range& r, double x); | |
145 friend OCTAVE_API Range operator * (double x, const Range& r); | |
146 friend OCTAVE_API Range operator * (const Range& r, double x); | |
147 | |
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148 private: |
1860 | 149 |
208 | 150 double rng_base; |
151 double rng_limit; | |
152 double rng_inc; | |
1860 | 153 |
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154 octave_idx_type rng_numel; |
3 | 155 |
4811 | 156 mutable Matrix cache; |
157 | |
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158 octave_idx_type numel_internal (void) const; |
4811 | 159 |
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160 double limit_internal (void) const; |
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161 |
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162 void init (void); |
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163 |
4811 | 164 void clear_cache (void) const { cache.resize (0, 0); } |
8971 | 165 |
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166 protected: |
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167 |
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168 // For operators' usage (to allow all values to be set directly). |
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169 Range (double b, double l, double i, octave_idx_type n) |
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170 : rng_base (b), rng_limit (l), rng_inc (i), |
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171 rng_numel (n), cache () |
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172 { |
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Deprecate octave::math::finite in favor of octave::math::isfinite.
Rik <rik@octave.org>
parents:
23487
diff
changeset
|
173 if (! octave::math::isfinite (b) || ! octave::math::isfinite (i) |
7049da1648c0
Deprecate octave::math::finite in favor of octave::math::isfinite.
Rik <rik@octave.org>
parents:
23487
diff
changeset
|
174 || ! octave::math::isfinite (l)) |
20228
00cf2847355d
Deprecate Array::nelem() and Range::nelem() in favour of ::numel().
Carnë Draug <carandraug@octave.org>
parents:
19697
diff
changeset
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175 rng_numel = -2; |
18852
47d4b680d0e0
improve accuracy of range/scalar arithmetic (bug #42589)
John W. Eaton <jwe@octave.org>
parents:
17769
diff
changeset
|
176 } |
3 | 177 }; |
178 | |
6108 | 179 extern OCTAVE_API Range operator - (const Range& r); |
8553
c7ff200e45f5
optimize range-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents:
7620
diff
changeset
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180 extern OCTAVE_API Range operator + (double x, const Range& r); |
c7ff200e45f5
optimize range-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents:
7620
diff
changeset
|
181 extern OCTAVE_API Range operator + (const Range& r, double x); |
c7ff200e45f5
optimize range-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents:
7620
diff
changeset
|
182 extern OCTAVE_API Range operator - (double x, const Range& r); |
c7ff200e45f5
optimize range-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents:
7620
diff
changeset
|
183 extern OCTAVE_API Range operator - (const Range& r, double x); |
c7ff200e45f5
optimize range-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents:
7620
diff
changeset
|
184 extern OCTAVE_API Range operator * (double x, const Range& r); |
c7ff200e45f5
optimize range-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents:
7620
diff
changeset
|
185 extern OCTAVE_API Range operator * (const Range& r, double x); |
c7ff200e45f5
optimize range-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents:
7620
diff
changeset
|
186 |
3 | 187 #endif |