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annotate src/ov-base-scalar.cc @ 10784:ca2df6737d6b

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generalize cell2mat optimization to n dimensions
author Jaroslav Hajek <highegg@gmail.com>
date Mon, 12 Jul 2010 21:32:18 +0200
parents 654fbde5dceb
children 7fa044155982
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1 /*
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2
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3 Copyright (C) 1996, 1997, 1999, 2000, 2002, 2004, 2005, 2007, 2008, 2009
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4 John W. Eaton
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5
9a1ac83591c0 [project @ 1999-10-12 06:03:19 by jwe]
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6 This file is part of Octave.
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7
9a1ac83591c0 [project @ 1999-10-12 06:03:19 by jwe]
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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
9a1ac83591c0 [project @ 1999-10-12 06:03:19 by jwe]
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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 #include <iostream>
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29
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30 #include "oct-obj.h"
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31 #include "ov-base.h"
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32 #include "ov-cx-mat.h"
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33 #include "ov-re-mat.h"
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34 #include "ov-base-scalar.h"
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35 #include "pr-output.h"
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36
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37 template <class ST>
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38 octave_value
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39 octave_base_scalar<ST>::subsref (const std::string& type,
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40 const std::list<octave_value_list>& idx)
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41 {
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42 octave_value retval;
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43
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44 switch (type[0])
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45 {
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46 case '(':
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47 retval = do_index_op (idx.front ());
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48 break;
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49
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50 case '{':
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51 case '.':
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52 {
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53 std::string nm = type_name ();
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54 error ("%s cannot be indexed with %c", nm.c_str (), type[0]);
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55 }
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56 break;
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57
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58 default:
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59 panic_impossible ();
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60 }
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61
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62 return retval.next_subsref (type, idx);
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63 }
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64
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65 template <class ST>
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66 octave_value
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67 octave_base_scalar<ST>::subsasgn (const std::string& type,
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68 const std::list<octave_value_list>& idx,
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69 const octave_value& rhs)
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70 {
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71 octave_value retval;
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72
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73 switch (type[0])
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74 {
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75 case '(':
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76 {
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77 if (type.length () == 1)
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78 retval = numeric_assign (type, idx, rhs);
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79 else
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80 {
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81 std::string nm = type_name ();
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82 error ("in indexed assignment of %s, last rhs index must be ()",
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83 nm.c_str ());
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84 }
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85 }
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86 break;
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87
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88 case '{':
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89 case '.':
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90 {
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91 std::string nm = type_name ();
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92 error ("%s cannot be indexed with %c", nm.c_str (), type[0]);
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93 }
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94 break;
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95
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96 default:
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97 panic_impossible ();
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98 }
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99
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100 return retval;
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101 }
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102
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103 template <class ST>
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104 octave_value
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105 octave_base_scalar<ST>::permute (const Array<int>& vec, bool inv) const
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106 {
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107 return Array<ST> (1, 1, scalar).permute (vec, inv);
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108 }
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109
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110 template <class ST>
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111 octave_value
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112 octave_base_scalar<ST>::reshape (const dim_vector& new_dims) const
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113 {
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114 return Array<ST> (1, 1, scalar).reshape (new_dims);
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115 }
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116
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117 template <class ST>
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118 bool
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119 octave_base_scalar<ST>::is_true (void) const
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120 {
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121 bool retval = false;
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122
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123 if (xisnan (scalar))
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124 error ("invalid conversion from NaN to logical");
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125 else
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126 retval = (scalar != ST ());
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127
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128 return retval;
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129 }
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130
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131 template <class ST>
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132 void
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133 octave_base_scalar<ST>::print (std::ostream& os, bool pr_as_read_syntax) const
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134 {
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135 print_raw (os, pr_as_read_syntax);
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136 newline (os);
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137 }
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138
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139 template <class ST>
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140 void
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141 octave_base_scalar<ST>::print_raw (std::ostream& os,
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142 bool pr_as_read_syntax) const
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143 {
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144 indent (os);
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145 octave_print_internal (os, scalar, pr_as_read_syntax);
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146 }
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147
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148 template <class ST>
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149 bool
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150 octave_base_scalar<ST>::print_name_tag (std::ostream& os,
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151 const std::string& name) const
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152 {
9a1ac83591c0 [project @ 1999-10-12 06:03:19 by jwe]
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153 indent (os);
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154 os << name << " = ";
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155 return false;
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156 }
10670
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157
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158 template <class ST>
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159 bool
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160 octave_base_scalar<ST>::fast_elem_insert_self (void *where, builtin_type_t btyp) const
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161 {
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162
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163 // Don't use builtin_type () here to avoid an extra VM call.
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164 if (btyp == class_to_btyp<ST>::btyp)
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165 {
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166 *(reinterpret_cast<ST *>(where)) = scalar;
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167 return true;
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168 }
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169 else
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170 return false;
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171 }