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maint: Merge stable to default.
author John W. Eaton <jwe@octave.org>
date Mon, 23 Jan 2017 14:27:48 -0500
parents 3a2b891d0b33 e9a0469dedd9
children 092078913d54
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1 /*
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2
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3 Copyright (C) 1994-2016 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
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10 the Free Software Foundation; either version 3 of the License, or
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11 (at your 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
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14 WITHOUT ANY WARRANTY; without even the implied warranty of
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15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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16 GNU General Public License 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
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24 #if defined (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 // Prevent implicit instantiations on some systems (Windows, others?)
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38 // that can lead to duplicate definitions of static data members.
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39
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40 extern template class OCTAVE_API Array<idx_vector>;
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41 extern template class OCTAVE_API Array<octave_idx_type>;
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42
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43 template <>
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44 inline bool
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45 sort_isnan<Complex> (const Complex& x)
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46 {
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47 return octave::math::isnan (x);
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48 }
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49
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50 // Sort Criteria: 1) isnan, 2) magnitude of z, 3) phase of z in range (-pi, pi]
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51
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52 static bool
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53 nan_ascending_compare (const Complex& x, const Complex& y)
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54 {
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55 return octave::math::isnan (y) ? ! octave::math::isnan (x) : x < y;
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56 }
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57
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58 static bool
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59 nan_descending_compare (const Complex& x, const Complex& y)
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60 {
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61 return octave::math::isnan (x) ? ! octave::math::isnan (y) : x > y;
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62 }
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63
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64 Array<Complex>::compare_fcn_type
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65 safe_comparator (sortmode mode, const Array<Complex>& a , bool allow_chk)
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66 {
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67 Array<Complex>::compare_fcn_type result = 0;
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68
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69 if (allow_chk)
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70 {
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71 octave_idx_type k = 0;
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72 for (; k < a.numel () && ! octave::math::isnan (a(k)); k++) ;
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73 if (k == a.numel ())
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74 {
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75 if (mode == ASCENDING)
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76 result = octave_sort<Complex>::ascending_compare;
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77 else if (mode == DESCENDING)
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78 result = octave_sort<Complex>::descending_compare;
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79 }
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80 }
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81
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82 if (! result)
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83 {
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84 if (mode == ASCENDING)
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85 result = nan_ascending_compare;
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86 else if (mode == DESCENDING)
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87 result = nan_descending_compare;
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88 }
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89
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90 return result;
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91 }
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92
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93 template class OCTAVE_API octave_sort<Complex>;
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94
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95 INSTANTIATE_ARRAY (Complex, OCTAVE_API);
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96
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97 template OCTAVE_API std::ostream& operator << (std::ostream&,
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98 const Array<Complex>&);
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99
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100 #include "DiagArray2.h"
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101 #include "DiagArray2.cc"
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102
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103 template class OCTAVE_API DiagArray2<Complex>;