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annotate liboctave/array/Array-fC.cc @ 17143:603ce503babd

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figure.m: Overhaul function. When switching to figure N make it visible. * scripts/plot/figure.m: When switching to figure N make it visible. Rename variable tmp to arg for clarity. Add %!error blocks.
author Rik <rik@octave.org>
date Thu, 01 Aug 2013 11:18:52 -0700
parents 648dabbb4c6b
children
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1 /*
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2
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72c96de7a403 maint: update copyright notices for 2012
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3 Copyright (C) 1994-2012 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
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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 FloatComplex 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<FloatComplex> (const FloatComplex& 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 static bool
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45 nan_ascending_compare (const FloatComplex& x, const FloatComplex& y)
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46 {
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47 return (xisnan (y)
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48 ? ! xisnan (x)
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49 : ((std::abs (x) < std::abs (x))
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50 || ((std::abs (x) == std::abs (x)) && (arg (x) < arg (x)))));
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51 }
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52
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53 static bool
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54 nan_descending_compare (const FloatComplex& x, const FloatComplex& y)
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55 {
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56 return (xisnan (x)
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57 ? ! xisnan (y)
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58 : ((std::abs (x) > std::abs (x))
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59 || ((std::abs (x) == std::abs (x)) && (arg (x) > arg (x)))));
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60 }
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61
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62 Array<FloatComplex>::compare_fcn_type
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63 safe_comparator (sortmode mode, const Array<FloatComplex>& a,
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64 bool allow_chk)
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65 {
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66 Array<FloatComplex>::compare_fcn_type result = 0;
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67
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68 if (allow_chk)
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69 {
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70 octave_idx_type k = 0;
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71 for (; k < a.numel () && ! xisnan (a(k)); k++) ;
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72 if (k == a.numel ())
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73 {
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74 if (mode == ASCENDING)
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75 result = octave_sort<FloatComplex>::ascending_compare;
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76 else if (mode == DESCENDING)
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77 result = octave_sort<FloatComplex>::descending_compare;
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78 }
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79 }
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80
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81 if (! result)
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82 {
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83 if (mode == ASCENDING)
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84 result = nan_ascending_compare;
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85 else if (mode == DESCENDING)
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86 result = nan_descending_compare;
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87 }
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88
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89 return result;
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90 }
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91
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92 INSTANTIATE_ARRAY_SORT (FloatComplex);
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93
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94 INSTANTIATE_ARRAY (FloatComplex, OCTAVE_API);
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95
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96 template OCTAVE_API std::ostream& operator << (std::ostream&, const Array<FloatComplex>&);
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97
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98 #include "DiagArray2.h"
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99 #include "DiagArray2.cc"
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100
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101 template class OCTAVE_API DiagArray2<FloatComplex>;