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annotate liboctave/array/Array-C.cc @ 19887:3db04b75c7c0

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do not set text encoding for strings to utf-8 on windows (bug #44103) * octave-gui.cc (octave_start_gui): only use setCodecForCStrings when not building for windows
author Torsten <ttl@justmail.de>
date Mon, 09 Feb 2015 22:09:36 +0100
parents bdf90710dddf
children 4197fc428c7d
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /*
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2
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3 Copyright (C) 1994-2013 John W. Eaton
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4 Copyright (C) 2009 VZLU Prague
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5
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6 This file is part of Octave.
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7
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8 Octave is free software; you can redistribute it and/or modify it
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9 under the terms of the GNU General Public License as published by the
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10 Free Software Foundation; either version 3 of the License, or (at your
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11 option) any later version.
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12
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13 Octave is distributed in the hope that it will be useful, but WITHOUT
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14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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16 for more details.
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17
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18 You should have received a copy of the GNU General Public License
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19 along with Octave; see the file COPYING. If not, see
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20 <http://www.gnu.org/licenses/>.
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21
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22 */
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23
2006
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24 #ifdef HAVE_CONFIG_H
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25 #include <config.h>
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26 #endif
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27
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28 // Instantiate Arrays of Complex values.
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29
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30 #include "oct-cmplx.h"
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31 #include "lo-mappers.h"
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32
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33 #include "Array.h"
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34 #include "Array.cc"
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35 #include "oct-sort.cc"
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36
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37 template <>
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38 inline bool
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39 sort_isnan<Complex> (const Complex& x)
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40 {
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41 return xisnan (x);
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42 }
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43
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44 // Sort Criteria: 1) isnan, 2) magnitude of z, 3) phase of z in range (-pi, pi]
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45
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46 static bool
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47 nan_ascending_compare (const Complex& x, const Complex& y)
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48 {
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49 if (xisnan (y))
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50 return (! xisnan (x));
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51
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52 double xabs = std::abs (x);
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53 double yabs = std::abs (y);
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54
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55 if (xabs < yabs)
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56 return true;
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57 else if (xabs == yabs)
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58 {
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59 double xarg = arg (x);
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60 double yarg = arg (y);
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61 xarg = (xarg == -M_PI) ? M_PI : xarg;
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62 yarg = (yarg == -M_PI) ? M_PI : yarg;
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63
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64 return xarg < yarg;
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65 }
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66 else
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67 return false;
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68 }
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69
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70 static bool
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71 nan_descending_compare (const Complex& x, const Complex& y)
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72 {
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73 if (xisnan (x))
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74 return (! xisnan (y));
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75
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76 double xabs = std::abs (x);
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77 double yabs = std::abs (y);
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78
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79 if (xabs > yabs)
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80 return true;
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81 else if (xabs == yabs)
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82 {
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83 double xarg = arg (x);
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84 double yarg = arg (y);
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85 xarg = (xarg == -M_PI) ? M_PI : xarg;
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86 yarg = (yarg == -M_PI) ? M_PI : yarg;
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87
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88 return xarg > yarg;
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89 }
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90 else
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91 return false;
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92 }
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93
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94 Array<Complex>::compare_fcn_type
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95 safe_comparator (sortmode mode, const Array<Complex>& a , bool allow_chk)
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96 {
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97 Array<Complex>::compare_fcn_type result = 0;
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98
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99 if (allow_chk)
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100 {
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101 octave_idx_type k = 0;
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102 for (; k < a.numel () && ! xisnan (a(k)); k++) ;
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103 if (k == a.numel ())
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104 {
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105 if (mode == ASCENDING)
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106 result = octave_sort<Complex>::ascending_compare;
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107 else if (mode == DESCENDING)
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108 result = octave_sort<Complex>::descending_compare;
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109 }
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110 }
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111
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112 if (! result)
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113 {
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114 if (mode == ASCENDING)
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115 result = nan_ascending_compare;
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116 else if (mode == DESCENDING)
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117 result = nan_descending_compare;
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118 }
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119
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120 return result;
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121 }
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122
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123 template class OCTAVE_API octave_sort<Complex>;
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124
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125 INSTANTIATE_ARRAY (Complex, OCTAVE_API);
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126
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127 template OCTAVE_API std::ostream& operator << (std::ostream&,
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128 const Array<Complex>&);
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129
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130 #include "DiagArray2.h"
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131 #include "DiagArray2.cc"
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132
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133 template class OCTAVE_API DiagArray2<Complex>;