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annotate src/pt-cell.cc @ 12312:b10ea6efdc58 release-3-4-x ss-3-3-91

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version is now 3.3.91
author John W. Eaton <jwe@octave.org>
date Mon, 31 Jan 2011 08:36:58 -0500
parents 12df7854fa7c
children 72c96de7a403
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 /*
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2
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3 Copyright (C) 1999-2011 John W. Eaton
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4
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5 This file is part of Octave.
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6
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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 the
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9 Free Software Foundation; either version 3 of the License, or (at your
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10 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 WITHOUT
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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15 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 #ifdef 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 <iostream>
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28
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29 #include "Cell.h"
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30 #include "defun.h"
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31 #include "error.h"
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32 #include "oct-obj.h"
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33 #include "pt-arg-list.h"
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34 #include "pt-bp.h"
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35 #include "pt-exp.h"
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36 #include "pt-cell.h"
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37 #include "pt-walk.h"
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38 #include "utils.h"
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39 #include "ov.h"
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40 #include "variables.h"
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41
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42 octave_value
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43 tree_cell::rvalue1 (int)
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44 {
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45 octave_value retval;
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46
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47 octave_idx_type nr = length ();
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48 octave_idx_type nc = -1;
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49
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50 Cell val;
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51
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52 int i = 0;
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53
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54 for (iterator p = begin (); p != end (); p++)
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55 {
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56 tree_argument_list *elt = *p;
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57
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58 octave_value_list row = elt->convert_to_const_vector ();
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59
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60 if (nr == 1)
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61 // Optimize the single row case.
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62 val = row.cell_value ();
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63 else if (nc < 0)
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64 {
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65 nc = row.length ();
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66
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67 val = Cell (nr, nc);
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68 }
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69 else
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70 {
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71 octave_idx_type this_nc = row.length ();
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72
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73 if (nc != this_nc)
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74 {
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75 ::error ("number of columns must match");
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76 return retval;
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77 }
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78 }
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79
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80 for (octave_idx_type j = 0; j < nc; j++)
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81 val(i,j) = row(j);
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82
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83 i++;
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84 }
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85
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86 retval = val;
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87
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88 return retval;
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89 }
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90
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91 octave_value_list
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92 tree_cell::rvalue (int nargout)
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93 {
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94 octave_value_list retval;
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95
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96 if (nargout > 1)
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97 error ("invalid number of output arguments for cell array");
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98 else
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99 retval = rvalue1 (nargout);
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100
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101 return retval;
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102 }
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103
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104 tree_expression *
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105 tree_cell::dup (symbol_table::scope_id scope,
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106 symbol_table::context_id context) const
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107 {
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108 tree_cell *new_cell = new tree_cell (0, line (), column ());
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109
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110 for (const_iterator p = begin (); p != end (); p++)
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111 {
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112 const tree_argument_list *elt = *p;
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113
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114 new_cell->append (elt ? elt->dup (scope, context) : 0);
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115 }
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116
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117 new_cell->copy_base (*this);
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118
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119 return new_cell;
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120 }
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121
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122 void
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123 tree_cell::accept (tree_walker& tw)
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124 {
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125 tw.visit_cell (*this);
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126 }