annotate liboctave/array/Range.h @ 23564:7049da1648c0

Deprecate octave::math::finite in favor of octave::math::isfinite. New name matches is clearer about what function does as it matches both Octave's m-file language and C++11. * lo-mappers.h (isfinite): Declare new function isfinite for double, float, and std::complex types. Use OCTAVE_DEPRECATED macro for declarations of finite function. Replace uses of octave::math::finite with octave::math::isfinite. * lo-mappers.cc (isfinite): Implement new function isfinite for double and float types. * lo-mappers.cc (finite): Delete function finite for double and float types. * gl-render.cc, graphics.cc, graphics.in.h, ls-mat5.cc, pr-output.cc, quadcc.cc, ov-complex.cc, ov-cx-sparse.cc, ov-float.cc, ov-flt-complex.cc, ov-re-sparse.cc, ov-scalar.cc, CNDArray.cc, Range.h, dNDArray.cc, fCNDArray.cc, fNDArray.cc, lo-specfun.cc, oct-rand.cc, mx-inlines.cc, lo-utils.cc: Replace uses of octave::math::finite with octave::math::isfinite.
author Rik <rik@octave.org>
date Thu, 08 Jun 2017 15:56:46 -0700
parents af2f1f3dbe06
children 80c42f4cca13
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1 /*
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2
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3 Copyright (C) 1993-2017 John W. Eaton
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5 This file is part of Octave.
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7 Octave is free software; you can redistribute it and/or modify it
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8 under the terms of the GNU General Public License as published by
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9 the Free Software Foundation; either version 3 of the License, or
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10 (at your option) any later version.
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12 Octave is distributed in the hope that it will be useful, but
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13 WITHOUT ANY WARRANTY; without even the implied warranty of
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14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 GNU General Public License for more details.
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17 You should have received a copy of the GNU General Public License
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18 along with Octave; see the file COPYING. If not, see
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19 <http://www.gnu.org/licenses/>.
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21 */
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23 #if ! defined (octave_Range_h)
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24 #define octave_Range_h 1
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26 #include "octave-config.h"
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28 #include <iosfwd>
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30 #include "dMatrix.h"
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31 #include "oct-sort.h"
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33 class
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34 OCTAVE_API
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35 Range
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36 {
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37 public:
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39 Range (void)
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40 : rng_base (0), rng_limit (0), rng_inc (0), rng_numel (0), cache (1, 0) { }
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42 Range (const Range& r)
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43 : rng_base (r.rng_base), rng_limit (r.rng_limit), rng_inc (r.rng_inc),
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44 rng_numel (r.rng_numel), cache (r.cache) { }
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46 Range (double b, double l)
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47 : rng_base (b), rng_limit (l), rng_inc (1),
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48 rng_numel (numel_internal ()), cache ()
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49 {
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50 rng_limit = limit_internal ();
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51 }
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53 Range (double b, double l, double i)
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54 : rng_base (b), rng_limit (l), rng_inc (i),
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55 rng_numel (numel_internal ()), cache ()
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56 {
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57 rng_limit = limit_internal ();
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58 }
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60 // For operators' usage (to preserve element count).
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61 Range (double b, double i, octave_idx_type n)
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62 : rng_base (b), rng_limit (b + (n-1) * i), rng_inc (i),
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63 rng_numel (n), cache ()
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64 {
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65 if (! octave::math::isfinite (b) || ! octave::math::isfinite (i)
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66 || ! octave::math::isfinite (rng_limit))
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67 rng_numel = -2;
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68 else
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70 // Code below is only needed if the resulting range must be 100%
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71 // correctly constructed. If the Range object created is only
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72 // a temporary one used by operators this may be unnecessary.
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74 rng_limit = limit_internal ();
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75 }
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76 }
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78 double base (void) const { return rng_base; }
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79 double limit (void) const { return rng_limit; }
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80 double inc (void) const { return rng_inc; }
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81
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82 OCTAVE_DEPRECATED ("use 'numel' instead")
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83 octave_idx_type nelem (void) const { return numel (); }
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85 octave_idx_type numel (void) const { return rng_numel; }
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86
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87 bool is_empty (void) const { return numel () == 0; }
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89 bool all_elements_are_ints (void) const;
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91 Matrix matrix_value (void) const;
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93 double min (void) const;
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94 double max (void) const;
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96 void sort_internal (bool ascending = true);
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97 void sort_internal (Array<octave_idx_type>& sidx, bool ascending = true);
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99 Matrix diag (octave_idx_type k = 0) const;
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100
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101 Range sort (octave_idx_type dim = 0, sortmode mode = ASCENDING) const;
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102
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103 Range sort (Array<octave_idx_type>& sidx, octave_idx_type dim = 0,
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104 sortmode mode = ASCENDING) const;
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106 sortmode is_sorted (sortmode mode = ASCENDING) const;
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107
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108 // Support for single-index subscripting, without generating matrix cache.
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109
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110 double checkelem (octave_idx_type i) const;
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111
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112 double elem (octave_idx_type i) const;
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113
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114 double operator () (octave_idx_type i) const { return elem (i); }
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115
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116 Array<double> index (const idx_vector& i) const;
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117
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118 void set_base (double b);
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119
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120 void set_limit (double l);
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122 void set_inc (double i);
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123
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124 friend OCTAVE_API std::ostream& operator << (std::ostream& os,
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125 const Range& r);
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126 friend OCTAVE_API std::istream& operator >> (std::istream& is, Range& r);
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127
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128 friend OCTAVE_API Range operator - (const Range& r);
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129 friend OCTAVE_API Range operator + (double x, const Range& r);
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130 friend OCTAVE_API Range operator + (const Range& r, double x);
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131 friend OCTAVE_API Range operator - (double x, const Range& r);
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132 friend OCTAVE_API Range operator - (const Range& r, double x);
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133 friend OCTAVE_API Range operator * (double x, const Range& r);
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134 friend OCTAVE_API Range operator * (const Range& r, double x);
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135
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136 private:
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138 double rng_base;
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139 double rng_limit;
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140 double rng_inc;
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141
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142 octave_idx_type rng_numel;
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143
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144 mutable Matrix cache;
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145
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146 octave_idx_type numel_internal (void) const;
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147
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148 double limit_internal (void) const;
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149
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150 void init (void);
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151
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152 void clear_cache (void) const { cache.resize (0, 0); }
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153
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154 protected:
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155
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156 // For operators' usage (to allow all values to be set directly).
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157 Range (double b, double l, double i, octave_idx_type n)
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158 : rng_base (b), rng_limit (l), rng_inc (i),
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159 rng_numel (n), cache ()
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160 {
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161 if (! octave::math::isfinite (b) || ! octave::math::isfinite (i)
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162 || ! octave::math::isfinite (l))
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163 rng_numel = -2;
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164 }
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165 };
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166
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167 extern OCTAVE_API Range operator - (const Range& r);
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168
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169 extern OCTAVE_API Range operator + (double x, const Range& r);
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170
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171 extern OCTAVE_API Range operator + (const Range& r, double x);
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172
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173 extern OCTAVE_API Range operator - (double x, const Range& r);
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174
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175 extern OCTAVE_API Range operator - (const Range& r, double x);
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176
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177 extern OCTAVE_API Range operator * (double x, const Range& r);
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178
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179 extern OCTAVE_API Range operator * (const Range& r, double x);
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180
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181 #endif