annotate liboctave/numeric/schur.cc @ 23795:980f39c3ab90

Use C++11 nullptr rather than 0 in code (bug #51565). * Backend.cc, BaseControl.h, ButtonGroup.cc, CheckBoxControl.cc, Container.cc, ContextMenu.cc, ContextMenu.h, EditControl.cc, Figure.cc, FigureWindow.cc, ListBoxControl.cc, Menu.cc, Menu.h, MouseModeActionGroup.cc, Object.cc, ObjectProxy.cc, Panel.cc, PopupMenuControl.cc, PushButtonControl.cc, PushTool.cc, RadioButtonControl.cc, SliderControl.cc, TextControl.cc, ToggleButtonControl.cc, ToggleTool.cc, ToolBar.cc, ToolBar.h, ToolBarButton.cc, ToolBarButton.h, QTerminal.h, BlockArray.cpp, Emulation.cpp, Filter.cpp, Filter.h, History.cpp, KeyboardTranslator.cpp, QUnixTerminalImpl.h, Screen.cpp, ScreenWindow.cpp, ScreenWindow.h, SelfListener.h, TerminalCharacterDecoder.cpp, TerminalModel.cpp, TerminalView.cpp, TerminalView.h, kpty.cpp, dialog.cc, dialog.h, files-dock-widget.cc, find-files-model.h, file-editor-tab.cc, file-editor.cc, main-window.cc, octave-dock-widget.cc, octave-gui.cc, parser.cc, resource-manager.cc, resource-manager.h, shortcut-manager.cc, shortcut-manager.h, workspace-model.cc, workspace-view.cc, __magick_read__.cc, c-file-ptr-stream.cc, c-file-ptr-stream.h, call-stack.cc, call-stack.h, daspk.cc, dasrt.cc, dassl.cc, det.cc, display.h, error.cc, ft-text-renderer.cc, gl-render.cc, gl2ps-print.cc, graphics.in.h, help.cc, input.cc, interpreter.cc, load-path.cc, load-save.cc, ls-hdf5.cc, ls-hdf5.h, ls-mat5.cc, lsode.cc, mex.cc, mxarray.in.h, oct-errno.h, oct-hist.cc, oct-iostrm.h, oct-procbuf.cc, oct-procbuf.h, oct-stdstrm.h, oct-stream.cc, oct-stream.h, oct-strstrm.h, oct-tex-parser.in.yy, octave-link.h, pager.cc, pager.h, pr-output.cc, procstream.h, qz.cc, sighandlers.cc, svd.cc, symtab.cc, symtab.h, text-renderer.cc, txt-eng.h, utils.cc, variables.cc, zfstream.cc, zfstream.h, __glpk__.cc, __init_fltk__.cc, __ode15__.cc, audiodevinfo.cc, ccolamd.cc, colamd.cc, dmperm.cc, gzip.cc, symbfact.cc, ov-base-int.cc, ov-base-int.h, ov-base-mat.h, ov-base.cc, ov-base.h, ov-bool-mat.cc, ov-bool-sparse.cc, ov-bool.cc, ov-builtin.h, ov-cell.cc, ov-class.cc, ov-complex.cc, ov-cx-mat.cc, ov-cx-sparse.cc, ov-fcn-handle.cc, ov-fcn-inline.cc, ov-fcn.cc, ov-fcn.h, ov-float.cc, ov-flt-complex.cc, ov-flt-cx-mat.cc, ov-flt-re-mat.cc, ov-java.cc, ov-java.h, ov-mex-fcn.cc, ov-oncleanup.cc, ov-range.cc, ov-range.h, ov-re-mat.cc, ov-re-sparse.cc, ov-scalar.cc, ov-str-mat.cc, ov-typeinfo.cc, ov-typeinfo.h, ov-usr-fcn.cc, ov-usr-fcn.h, ov.cc, octave.cc, bp-table.cc, bp-table.h, jit-ir.h, jit-typeinfo.cc, lex.h, profiler.cc, pt-arg-list.cc, pt-array-list.cc, pt-assign.cc, pt-assign.h, pt-binop.cc, pt-binop.h, pt-cell.cc, pt-classdef.cc, pt-classdef.h, pt-colon.cc, pt-colon.h, pt-decl.cc, pt-decl.h, pt-eval.cc, pt-eval.h, pt-except.h, pt-fcn-handle.cc, pt-fcn-handle.h, pt-idx.cc, pt-jit.cc, pt-loop.h, pt-mat.cc, pt-select.h, pt-stmt.h, pt-tm-const.h, pt-unop.cc, pt-unop.h, pt.cc, Array-C.cc, Array-d.cc, Array-f.cc, Array-fC.cc, Array-util.cc, Array.cc, Array.h, CMatrix.cc, CSparse.cc, DiagArray2.h, MArray.h, MDiagArray2.h, MatrixType.cc, Sparse.cc, Sparse.h, dMatrix.cc, dSparse.cc, fMatrix.cc, idx-vector.cc, idx-vector.h, DAEFunc.h, DAERTFunc.h, ODEFunc.h, ODESFunc.h, eigs-base.cc, oct-fftw.cc, oct-fftw.h, oct-rand.h, oct-spparms.h, schur.cc, sparse-chol.cc, sparse-dmsolve.cc, sparse-lu.cc, sparse-qr.cc, child-list.h, dir-ops.cc, dir-ops.h, file-ops.cc, lo-sysdep.cc, oct-env.h, oct-time.cc, cmd-edit.cc, cmd-edit.h, cmd-hist.h, lo-regexp.cc, lo-regexp.h, lo-utils.cc, oct-shlib.cc, oct-shlib.h, oct-sort.cc, oct-sort.h, quit.cc, singleton-cleanup.h, str-vec.cc: Use C++11 nullptr rather than 0 in code (bug #51565).
author Rik <rik@octave.org>
date Tue, 25 Jul 2017 14:54:10 -0700
parents 08036a7f3660
children 194eb4bd202b
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1 /*
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2
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3 Copyright (C) 1994-2017 John W. Eaton
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4
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5 This file is part of Octave.
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6
3d4b4f0fa5ba [project @ 1994-06-06 00:33:33 by jwe]
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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
3a2b891d0b33 maint: Standardize Copyright formatting.
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10 (at your option) any later version.
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11
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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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16
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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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20
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21 */
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22
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23 #if defined (HAVE_CONFIG_H)
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24 # include "config.h"
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25 #endif
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26
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27 #include "Array.h"
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28 #include "CMatrix.h"
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29 #include "dMatrix.h"
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30 #include "fCMatrix.h"
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31 #include "fMatrix.h"
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32 #include "lo-error.h"
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33 #include "lo-lapack-proto.h"
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34 #include "oct-locbuf.h"
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35 #include "schur.h"
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36
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37 namespace octave
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38 {
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39 namespace math
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40 {
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41 // For real types.
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42
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43 static F77_INT
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44 select_ana (const double& a, const double&)
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45 {
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46 return (a < 0.0);
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47 }
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48
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49 static F77_INT
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50 select_dig (const double& a, const double& b)
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51 {
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52 return (hypot (a, b) < 1.0);
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53 }
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55 static F77_INT
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56 select_ana (const float& a, const float&)
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57 {
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58 return (a < 0.0);
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59 }
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61 static F77_INT
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62 select_dig (const float& a, const float& b)
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63 {
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64 return (hypot (a, b) < 1.0);
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65 }
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66
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67 // For complex types.
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68
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69 static F77_INT
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70 select_ana (const F77_DBLE_CMPLX& a_arg)
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71 {
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72 const Complex a = reinterpret_cast<const Complex&> (a_arg);
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73 return a.real () < 0.0;
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74 }
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76 static F77_INT
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77 select_dig (const F77_DBLE_CMPLX& a_arg)
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78 {
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79 const Complex& a = reinterpret_cast<const Complex&> (a_arg);
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80 return (abs (a) < 1.0);
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81 }
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82
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83 static F77_INT
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84 select_ana (const F77_CMPLX& a_arg)
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85 {
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86 const FloatComplex& a = reinterpret_cast<const FloatComplex&> (a_arg);
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87 return a.real () < 0.0;
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88 }
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89
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90 static F77_INT
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91 select_dig (const F77_CMPLX& a_arg)
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92 {
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93 const FloatComplex& a = reinterpret_cast<const FloatComplex&> (a_arg);
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94 return (abs (a) < 1.0);
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95 }
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96
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97 template <>
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98 F77_INT
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99 schur<Matrix>::init (const Matrix& a, const std::string& ord, bool calc_unitary)
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100 {
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101 F77_INT a_nr = to_f77_int (a.rows ());
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102 F77_INT a_nc = to_f77_int (a.cols ());
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103
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104 if (a_nr != a_nc)
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105 (*current_liboctave_error_handler) ("schur: requires square matrix");
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106
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107 if (a_nr == 0)
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108 {
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109 schur_mat.clear ();
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110 unitary_mat.clear ();
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111 return 0;
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112 }
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113
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114 // Workspace requirements may need to be fixed if any of the
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115 // following change.
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116
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117 char jobvs;
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118 char sense = 'N';
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119 char sort = 'N';
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120
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121 if (calc_unitary)
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122 jobvs = 'V';
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123 else
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124 jobvs = 'N';
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125
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126 char ord_char = (ord.empty () ? 'U' : ord[0]);
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127
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128 if (ord_char == 'A' || ord_char == 'D' || ord_char == 'a' || ord_char == 'd')
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129 sort = 'S';
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130
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131 volatile double_selector selector = nullptr;
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132 if (ord_char == 'A' || ord_char == 'a')
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133 selector = select_ana;
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134 else if (ord_char == 'D' || ord_char == 'd')
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135 selector = select_dig;
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136
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137 F77_INT n = a_nc;
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138 F77_INT lwork = 8 * n;
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139 F77_INT liwork = 1;
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140 F77_INT info;
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141 F77_INT sdim;
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142 double rconde;
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143 double rcondv;
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144
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145 schur_mat = a;
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146
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147 if (calc_unitary)
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148 unitary_mat.clear (n, n);
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149
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150 double *s = schur_mat.fortran_vec ();
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151 double *q = unitary_mat.fortran_vec ();
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152
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153 Array<double> wr (dim_vector (n, 1));
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154 double *pwr = wr.fortran_vec ();
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155
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156 Array<double> wi (dim_vector (n, 1));
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157 double *pwi = wi.fortran_vec ();
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158
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159 Array<double> work (dim_vector (lwork, 1));
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160 double *pwork = work.fortran_vec ();
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161
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162 // BWORK is not referenced for the non-ordered Schur routine.
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163 F77_INT ntmp = (ord_char == 'N' || ord_char == 'n') ? 0 : n;
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164 Array<F77_INT> bwork (dim_vector (ntmp, 1));
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165 F77_INT *pbwork = bwork.fortran_vec ();
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166
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167 Array<F77_INT> iwork (dim_vector (liwork, 1));
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168 F77_INT *piwork = iwork.fortran_vec ();
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169
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170 F77_XFCN (dgeesx, DGEESX, (F77_CONST_CHAR_ARG2 (&jobvs, 1),
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171 F77_CONST_CHAR_ARG2 (&sort, 1),
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172 selector,
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173 F77_CONST_CHAR_ARG2 (&sense, 1),
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174 n, s, n, sdim, pwr, pwi, q, n, rconde, rcondv,
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175 pwork, lwork, piwork, liwork, pbwork, info
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176 F77_CHAR_ARG_LEN (1)
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177 F77_CHAR_ARG_LEN (1)
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178 F77_CHAR_ARG_LEN (1)));
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179
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180 return info;
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181 }
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182
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183 template <>
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184 F77_INT
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185 schur<FloatMatrix>::init (const FloatMatrix& a, const std::string& ord,
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186 bool calc_unitary)
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187 {
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188 F77_INT a_nr = to_f77_int (a.rows ());
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189 F77_INT a_nc = to_f77_int (a.cols ());
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190
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191 if (a_nr != a_nc)
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diff changeset
192 (*current_liboctave_error_handler) ("SCHUR requires square matrix");
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193
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194 if (a_nr == 0)
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195 {
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196 schur_mat.clear ();
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197 unitary_mat.clear ();
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198 return 0;
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199 }
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200
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201 // Workspace requirements may need to be fixed if any of the
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202 // following change.
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203
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204 char jobvs;
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205 char sense = 'N';
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206 char sort = 'N';
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207
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208 if (calc_unitary)
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209 jobvs = 'V';
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210 else
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diff changeset
211 jobvs = 'N';
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212
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213 char ord_char = (ord.empty () ? 'U' : ord[0]);
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214
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215 if (ord_char == 'A' || ord_char == 'D' || ord_char == 'a' || ord_char == 'd')
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diff changeset
216 sort = 'S';
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diff changeset
217
23795
980f39c3ab90 Use C++11 nullptr rather than 0 in code (bug #51565).
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218 volatile float_selector selector = nullptr;
22329
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diff changeset
219 if (ord_char == 'A' || ord_char == 'a')
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220 selector = select_ana;
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diff changeset
221 else if (ord_char == 'D' || ord_char == 'd')
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diff changeset
222 selector = select_dig;
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223
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224 F77_INT n = a_nc;
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225 F77_INT lwork = 8 * n;
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226 F77_INT liwork = 1;
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227 F77_INT info;
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diff changeset
228 F77_INT sdim;
22329
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229 float rconde;
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diff changeset
230 float rcondv;
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diff changeset
231
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232 schur_mat = a;
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233
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234 if (calc_unitary)
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diff changeset
235 unitary_mat.clear (n, n);
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diff changeset
236
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diff changeset
237 float *s = schur_mat.fortran_vec ();
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diff changeset
238 float *q = unitary_mat.fortran_vec ();
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diff changeset
239
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diff changeset
240 Array<float> wr (dim_vector (n, 1));
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diff changeset
241 float *pwr = wr.fortran_vec ();
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242
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243 Array<float> wi (dim_vector (n, 1));
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244 float *pwi = wi.fortran_vec ();
457
3d4b4f0fa5ba [project @ 1994-06-06 00:33:33 by jwe]
jwe
parents:
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245
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246 Array<float> work (dim_vector (lwork, 1));
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247 float *pwork = work.fortran_vec ();
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248
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249 // BWORK is not referenced for the non-ordered Schur routine.
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250 F77_INT ntmp = (ord_char == 'N' || ord_char == 'n') ? 0 : n;
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251 Array<F77_INT> bwork (dim_vector (ntmp, 1));
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252 F77_INT *pbwork = bwork.fortran_vec ();
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253
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254 Array<F77_INT> iwork (dim_vector (liwork, 1));
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255 F77_INT *piwork = iwork.fortran_vec ();
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256
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257 F77_XFCN (sgeesx, SGEESX, (F77_CONST_CHAR_ARG2 (&jobvs, 1),
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258 F77_CONST_CHAR_ARG2 (&sort, 1),
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diff changeset
259 selector,
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diff changeset
260 F77_CONST_CHAR_ARG2 (&sense, 1),
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diff changeset
261 n, s, n, sdim, pwr, pwi, q, n, rconde, rcondv,
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262 pwork, lwork, piwork, liwork, pbwork, info
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263 F77_CHAR_ARG_LEN (1)
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264 F77_CHAR_ARG_LEN (1)
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265 F77_CHAR_ARG_LEN (1)));
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266
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267 return info;
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268 }
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269
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270 template <>
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271 F77_INT
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272 schur<ComplexMatrix>::init (const ComplexMatrix& a, const std::string& ord,
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273 bool calc_unitary)
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274 {
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275 F77_INT a_nr = to_f77_int (a.rows ());
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276 F77_INT a_nc = to_f77_int (a.cols ());
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277
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278 if (a_nr != a_nc)
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279 (*current_liboctave_error_handler) ("SCHUR requires square matrix");
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280
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281 if (a_nr == 0)
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282 {
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283 schur_mat.clear ();
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284 unitary_mat.clear ();
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285 return 0;
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286 }
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287
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288 // Workspace requirements may need to be fixed if any of the
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289 // following change.
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290
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291 char jobvs;
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292 char sense = 'N';
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293 char sort = 'N';
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294
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295 if (calc_unitary)
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296 jobvs = 'V';
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297 else
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298 jobvs = 'N';
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299
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300 char ord_char = (ord.empty () ? 'U' : ord[0]);
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301
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302 if (ord_char == 'A' || ord_char == 'D' || ord_char == 'a' || ord_char == 'd')
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303 sort = 'S';
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304
23795
980f39c3ab90 Use C++11 nullptr rather than 0 in code (bug #51565).
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305 volatile complex_selector selector = nullptr;
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306 if (ord_char == 'A' || ord_char == 'a')
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307 selector = select_ana;
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308 else if (ord_char == 'D' || ord_char == 'd')
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309 selector = select_dig;
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310
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311 F77_INT n = a_nc;
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312 F77_INT lwork = 8 * n;
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313 F77_INT info;
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314 F77_INT sdim;
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315 double rconde;
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316 double rcondv;
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317
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318 schur_mat = a;
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319 if (calc_unitary)
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320 unitary_mat.clear (n, n);
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321
22329
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322 Complex *s = schur_mat.fortran_vec ();
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diff changeset
323 Complex *q = unitary_mat.fortran_vec ();
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diff changeset
324
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diff changeset
325 Array<double> rwork (dim_vector (n, 1));
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326 double *prwork = rwork.fortran_vec ();
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327
22329
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diff changeset
328 Array<Complex> w (dim_vector (n, 1));
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diff changeset
329 Complex *pw = w.fortran_vec ();
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diff changeset
330
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
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331 Array<Complex> work (dim_vector (lwork, 1));
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diff changeset
332 Complex *pwork = work.fortran_vec ();
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333
22329
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334 // BWORK is not referenced for non-ordered Schur.
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335 F77_INT ntmp = (ord_char == 'N' || ord_char == 'n') ? 0 : n;
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diff changeset
336 Array<F77_INT> bwork (dim_vector (ntmp, 1));
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337 F77_INT *pbwork = bwork.fortran_vec ();
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338
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339 F77_XFCN (zgeesx, ZGEESX, (F77_CONST_CHAR_ARG2 (&jobvs, 1),
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diff changeset
340 F77_CONST_CHAR_ARG2 (&sort, 1),
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diff changeset
341 selector,
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diff changeset
342 F77_CONST_CHAR_ARG2 (&sense, 1),
22402
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Rik <rik@octave.org>
parents: 22329
diff changeset
343 n, F77_DBLE_CMPLX_ARG (s), n, sdim, F77_DBLE_CMPLX_ARG (pw),
4caa7b28d183 maint: Style check C++ code in liboctave/
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diff changeset
344 F77_DBLE_CMPLX_ARG (q), n, rconde, rcondv,
22329
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345 F77_DBLE_CMPLX_ARG (pwork), lwork, prwork, pbwork, info
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346 F77_CHAR_ARG_LEN (1)
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diff changeset
347 F77_CHAR_ARG_LEN (1)
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diff changeset
348 F77_CHAR_ARG_LEN (1)));
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349
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diff changeset
350 return info;
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diff changeset
351 }
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352
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diff changeset
353 template <>
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diff changeset
354 schur<ComplexMatrix>
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diff changeset
355 rsf2csf<ComplexMatrix, Matrix> (const Matrix& s_arg, const Matrix& u_arg)
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diff changeset
356 {
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diff changeset
357 ComplexMatrix s (s_arg);
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diff changeset
358 ComplexMatrix u (u_arg);
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diff changeset
359
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diff changeset
360 F77_INT n = to_f77_int (s.rows ());
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diff changeset
361
22329
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diff changeset
362 if (s.columns () != n || u.rows () != n || u.columns () != n)
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diff changeset
363 (*current_liboctave_error_handler)
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diff changeset
364 ("rsf2csf: inconsistent matrix dimensions");
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diff changeset
365
22329
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diff changeset
366 if (n > 0)
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diff changeset
367 {
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
368 OCTAVE_LOCAL_BUFFER (double, c, n-1);
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
369 OCTAVE_LOCAL_BUFFER (double, sx, n-1);
21266
e69eaee28737 make better use of templates for Schur decomposition
John W. Eaton <jwe@octave.org>
parents: 21202
diff changeset
370
22329
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
371 F77_XFCN (zrsf2csf, ZRSF2CSF, (n, F77_DBLE_CMPLX_ARG (s.fortran_vec ()),
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
372 F77_DBLE_CMPLX_ARG (u.fortran_vec ()), c, sx));
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
373 }
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
374
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
375 return schur<ComplexMatrix> (s, u);
21266
e69eaee28737 make better use of templates for Schur decomposition
John W. Eaton <jwe@octave.org>
parents: 21202
diff changeset
376 }
e69eaee28737 make better use of templates for Schur decomposition
John W. Eaton <jwe@octave.org>
parents: 21202
diff changeset
377
22329
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
378 template <>
22844
7bb977866f55 use F77_INT instead of octave_idx_type for liboctave schur class
John W. Eaton <jwe@octave.org>
parents: 22839
diff changeset
379 F77_INT
22329
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
380 schur<FloatComplexMatrix>::init (const FloatComplexMatrix& a,
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
381 const std::string& ord, bool calc_unitary)
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
382 {
23696
08036a7f3660 remove octave:: namespace tag from symbols used inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 23475
diff changeset
383 F77_INT a_nr = to_f77_int (a.rows ());
08036a7f3660 remove octave:: namespace tag from symbols used inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 23475
diff changeset
384 F77_INT a_nc = to_f77_int (a.cols ());
21266
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John W. Eaton <jwe@octave.org>
parents: 21202
diff changeset
385
22329
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
386 if (a_nr != a_nc)
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
387 (*current_liboctave_error_handler) ("SCHUR requires square matrix");
21266
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John W. Eaton <jwe@octave.org>
parents: 21202
diff changeset
388
22329
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
389 if (a_nr == 0)
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
390 {
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
391 schur_mat.clear ();
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
392 unitary_mat.clear ();
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
393 return 0;
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
394 }
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
395
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
396 // Workspace requirements may need to be fixed if any of the
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
397 // following change.
21266
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John W. Eaton <jwe@octave.org>
parents: 21202
diff changeset
398
22329
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
399 char jobvs;
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
400 char sense = 'N';
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
401 char sort = 'N';
21266
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John W. Eaton <jwe@octave.org>
parents: 21202
diff changeset
402
22329
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
403 if (calc_unitary)
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
404 jobvs = 'V';
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
405 else
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
406 jobvs = 'N';
21266
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John W. Eaton <jwe@octave.org>
parents: 21202
diff changeset
407
23450
855122b993da maint: Wrap tertiary operator in parentheses "(COND ? x : y)".
Rik <rik@octave.org>
parents: 23220
diff changeset
408 char ord_char = (ord.empty () ? 'U' : ord[0]);
21266
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John W. Eaton <jwe@octave.org>
parents: 21202
diff changeset
409
22329
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
410 if (ord_char == 'A' || ord_char == 'D' || ord_char == 'a' || ord_char == 'd')
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
411 sort = 'S';
21266
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John W. Eaton <jwe@octave.org>
parents: 21202
diff changeset
412
23795
980f39c3ab90 Use C++11 nullptr rather than 0 in code (bug #51565).
Rik <rik@octave.org>
parents: 23696
diff changeset
413 volatile float_complex_selector selector = nullptr;
22329
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
414 if (ord_char == 'A' || ord_char == 'a')
22839
b27125252bb0 use Fortran data types for Fortran function pointer typedefs
John W. Eaton <jwe@octave.org>
parents: 22755
diff changeset
415 selector = select_ana;
22329
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
416 else if (ord_char == 'D' || ord_char == 'd')
22839
b27125252bb0 use Fortran data types for Fortran function pointer typedefs
John W. Eaton <jwe@octave.org>
parents: 22755
diff changeset
417 selector = select_dig;
21266
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John W. Eaton <jwe@octave.org>
parents: 21202
diff changeset
418
22844
7bb977866f55 use F77_INT instead of octave_idx_type for liboctave schur class
John W. Eaton <jwe@octave.org>
parents: 22839
diff changeset
419 F77_INT n = a_nc;
7bb977866f55 use F77_INT instead of octave_idx_type for liboctave schur class
John W. Eaton <jwe@octave.org>
parents: 22839
diff changeset
420 F77_INT lwork = 8 * n;
7bb977866f55 use F77_INT instead of octave_idx_type for liboctave schur class
John W. Eaton <jwe@octave.org>
parents: 22839
diff changeset
421 F77_INT info;
7bb977866f55 use F77_INT instead of octave_idx_type for liboctave schur class
John W. Eaton <jwe@octave.org>
parents: 22839
diff changeset
422 F77_INT sdim;
22329
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
423 float rconde;
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
424 float rcondv;
21266
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John W. Eaton <jwe@octave.org>
parents: 21202
diff changeset
425
22329
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
426 schur_mat = a;
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
427 if (calc_unitary)
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
428 unitary_mat.clear (n, n);
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
429
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
430 FloatComplex *s = schur_mat.fortran_vec ();
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
431 FloatComplex *q = unitary_mat.fortran_vec ();
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
432
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
433 Array<float> rwork (dim_vector (n, 1));
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
434 float *prwork = rwork.fortran_vec ();
21266
e69eaee28737 make better use of templates for Schur decomposition
John W. Eaton <jwe@octave.org>
parents: 21202
diff changeset
435
22329
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
436 Array<FloatComplex> w (dim_vector (n, 1));
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
437 FloatComplex *pw = w.fortran_vec ();
21266
e69eaee28737 make better use of templates for Schur decomposition
John W. Eaton <jwe@octave.org>
parents: 21202
diff changeset
438
22329
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
439 Array<FloatComplex> work (dim_vector (lwork, 1));
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
440 FloatComplex *pwork = work.fortran_vec ();
21266
e69eaee28737 make better use of templates for Schur decomposition
John W. Eaton <jwe@octave.org>
parents: 21202
diff changeset
441
22329
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
442 // BWORK is not referenced for non-ordered Schur.
22844
7bb977866f55 use F77_INT instead of octave_idx_type for liboctave schur class
John W. Eaton <jwe@octave.org>
parents: 22839
diff changeset
443 F77_INT ntmp = (ord_char == 'N' || ord_char == 'n') ? 0 : n;
7bb977866f55 use F77_INT instead of octave_idx_type for liboctave schur class
John W. Eaton <jwe@octave.org>
parents: 22839
diff changeset
444 Array<F77_INT> bwork (dim_vector (ntmp, 1));
7bb977866f55 use F77_INT instead of octave_idx_type for liboctave schur class
John W. Eaton <jwe@octave.org>
parents: 22839
diff changeset
445 F77_INT *pbwork = bwork.fortran_vec ();
21266
e69eaee28737 make better use of templates for Schur decomposition
John W. Eaton <jwe@octave.org>
parents: 21202
diff changeset
446
22329
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
447 F77_XFCN (cgeesx, CGEESX, (F77_CONST_CHAR_ARG2 (&jobvs, 1),
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
448 F77_CONST_CHAR_ARG2 (&sort, 1),
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
449 selector,
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
450 F77_CONST_CHAR_ARG2 (&sense, 1),
22402
4caa7b28d183 maint: Style check C++ code in liboctave/
Rik <rik@octave.org>
parents: 22329
diff changeset
451 n, F77_CMPLX_ARG (s), n, sdim, F77_CMPLX_ARG (pw), F77_CMPLX_ARG (q), n, rconde,
4caa7b28d183 maint: Style check C++ code in liboctave/
Rik <rik@octave.org>
parents: 22329
diff changeset
452 rcondv,
22329
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
453 F77_CMPLX_ARG (pwork), lwork, prwork, pbwork, info
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
454 F77_CHAR_ARG_LEN (1)
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
455 F77_CHAR_ARG_LEN (1)
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
456 F77_CHAR_ARG_LEN (1)));
21266
e69eaee28737 make better use of templates for Schur decomposition
John W. Eaton <jwe@octave.org>
parents: 21202
diff changeset
457
22329
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
458 return info;
21266
e69eaee28737 make better use of templates for Schur decomposition
John W. Eaton <jwe@octave.org>
parents: 21202
diff changeset
459 }
e69eaee28737 make better use of templates for Schur decomposition
John W. Eaton <jwe@octave.org>
parents: 21202
diff changeset
460
22329
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
461 template <>
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
462 schur<FloatComplexMatrix>
22402
4caa7b28d183 maint: Style check C++ code in liboctave/
Rik <rik@octave.org>
parents: 22329
diff changeset
463 rsf2csf<FloatComplexMatrix, FloatMatrix> (const FloatMatrix& s_arg,
4caa7b28d183 maint: Style check C++ code in liboctave/
Rik <rik@octave.org>
parents: 22329
diff changeset
464 const FloatMatrix& u_arg)
22329
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
465 {
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
466 FloatComplexMatrix s (s_arg);
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
467 FloatComplexMatrix u (u_arg);
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
468
23696
08036a7f3660 remove octave:: namespace tag from symbols used inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 23475
diff changeset
469 F77_INT n = to_f77_int (s.rows ());
21266
e69eaee28737 make better use of templates for Schur decomposition
John W. Eaton <jwe@octave.org>
parents: 21202
diff changeset
470
22329
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
471 if (s.columns () != n || u.rows () != n || u.columns () != n)
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
472 (*current_liboctave_error_handler)
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
473 ("rsf2csf: inconsistent matrix dimensions");
21266
e69eaee28737 make better use of templates for Schur decomposition
John W. Eaton <jwe@octave.org>
parents: 21202
diff changeset
474
22329
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
475 if (n > 0)
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
476 {
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
477 OCTAVE_LOCAL_BUFFER (float, c, n-1);
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
478 OCTAVE_LOCAL_BUFFER (float, sx, n-1);
21266
e69eaee28737 make better use of templates for Schur decomposition
John W. Eaton <jwe@octave.org>
parents: 21202
diff changeset
479
22329
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
480 F77_XFCN (crsf2csf, CRSF2CSF, (n, F77_CMPLX_ARG (s.fortran_vec ()),
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
481 F77_CMPLX_ARG (u.fortran_vec ()), c, sx));
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
482 }
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
483
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
484 return schur<FloatComplexMatrix> (s, u);
21266
e69eaee28737 make better use of templates for Schur decomposition
John W. Eaton <jwe@octave.org>
parents: 21202
diff changeset
485 }
e69eaee28737 make better use of templates for Schur decomposition
John W. Eaton <jwe@octave.org>
parents: 21202
diff changeset
486
22329
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
487 // Instantiations we need.
21266
e69eaee28737 make better use of templates for Schur decomposition
John W. Eaton <jwe@octave.org>
parents: 21202
diff changeset
488
22329
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
489 template class schur<ComplexMatrix>;
21266
e69eaee28737 make better use of templates for Schur decomposition
John W. Eaton <jwe@octave.org>
parents: 21202
diff changeset
490
22329
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
491 template class schur<FloatComplexMatrix>;
21266
e69eaee28737 make better use of templates for Schur decomposition
John W. Eaton <jwe@octave.org>
parents: 21202
diff changeset
492
22329
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
493 template class schur<FloatMatrix>;
21266
e69eaee28737 make better use of templates for Schur decomposition
John W. Eaton <jwe@octave.org>
parents: 21202
diff changeset
494
22329
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
495 template class schur<Matrix>;
7f3c7a8bd131 maint: Indent namespaces in liboctave/numeric files.
John W. Eaton <jwe@octave.org>
parents: 22323
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496 }
21266
e69eaee28737 make better use of templates for Schur decomposition
John W. Eaton <jwe@octave.org>
parents: 21202
diff changeset
497 }