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1 // N-D Array manipulations. |
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2 /* |
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3 |
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4 Copyright (C) 2003 John W. Eaton |
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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 2, or (at your option) any |
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11 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, write to the Free |
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20 Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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21 |
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22 */ |
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23 |
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24 #if defined (__GNUG__) && defined (USE_PRAGMA_INTERFACE_IMPLEMENTATION) |
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25 #pragma implementation |
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26 #endif |
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27 |
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28 #ifdef HAVE_CONFIG_H |
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29 #include <config.h> |
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30 #endif |
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31 |
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32 #include "Array-util.h" |
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33 #include "chNDArray.h" |
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34 #include "mx-base.h" |
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35 #include "lo-ieee.h" |
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36 #include "lo-mappers.h" |
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37 |
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38 // XXX FIXME XXX -- this is not quite the right thing. |
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39 |
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40 boolNDArray |
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41 charNDArray::all (int dim) const |
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42 { |
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43 MX_ND_ANY_ALL_REDUCTION (MX_ND_ALL_EVAL (elem (iter_idx) == ' '), true); |
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44 } |
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45 |
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46 boolNDArray |
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47 charNDArray::any (int dim) const |
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48 { |
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49 MX_ND_ANY_ALL_REDUCTION (MX_ND_ANY_EVAL (elem (iter_idx) != ' '), false); |
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50 } |
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51 |
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52 charNDArray |
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53 concat (const charNDArray& ra, const charNDArray& rb, const Array<int>& ra_idx) |
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54 { |
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55 charNDArray retval (ra); |
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56 if (rb.numel () > 0) |
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57 retval.insert (rb, ra_idx); |
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58 return retval; |
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59 } |
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60 |
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61 charNDArray |
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62 concat (const charNDArray& ra, const NDArray& rb, const Array<int>& ra_idx) |
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63 { |
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64 charNDArray retval (ra); |
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65 charNDArray tmp (rb.dims ()); |
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66 int nel = rb.numel (); |
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67 |
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68 if (rb.numel () == 0) |
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69 return retval; |
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70 |
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71 for (int i = 0; i < nel; i++) |
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72 { |
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73 double d = rb.elem (i); |
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74 |
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75 if (xisnan (d)) |
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76 { |
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77 (*current_liboctave_error_handler) |
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78 ("invalid conversion from NaN to character"); |
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79 return retval; |
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80 } |
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81 else |
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82 { |
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83 int ival = NINT (d); |
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84 |
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85 if (ival < 0 || ival > UCHAR_MAX) |
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86 // XXX FIXME XXX -- is there something |
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87 // better we could do? Should we warn the user? |
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88 ival = 0; |
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89 |
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90 tmp.elem (i) = static_cast<char>(ival); |
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91 } |
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92 } |
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93 |
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94 retval.insert (tmp, ra_idx); |
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95 return retval; |
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96 } |
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97 |
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98 charNDArray |
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99 concat (const NDArray& ra, const charNDArray& rb, const Array<int>& ra_idx) |
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100 { |
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101 charNDArray retval (ra.dims ()); |
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102 int nel = ra.numel (); |
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103 |
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104 for (int i = 0; i < nel; i++) |
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105 { |
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106 double d = ra.elem (i); |
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107 |
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108 if (xisnan (d)) |
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109 { |
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110 (*current_liboctave_error_handler) |
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111 ("invalid conversion from NaN to character"); |
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112 return retval; |
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113 } |
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114 else |
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115 { |
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116 int ival = NINT (d); |
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117 |
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118 if (ival < 0 || ival > UCHAR_MAX) |
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119 // XXX FIXME XXX -- is there something |
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120 // better we could do? Should we warn the user? |
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121 ival = 0; |
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122 |
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123 retval.elem (i) = static_cast<char>(ival); |
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124 } |
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125 } |
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126 |
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127 if (rb.numel () == 0) |
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128 return retval; |
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129 |
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130 retval.insert (rb, ra_idx); |
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131 return retval; |
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132 } |
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133 |
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134 charNDArray& |
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135 charNDArray::insert (const charNDArray& a, int r, int c) |
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136 { |
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137 Array<char>::insert (a, r, c); |
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138 return *this; |
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139 } |
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140 |
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141 charNDArray& |
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142 charNDArray::insert (const charNDArray& a, const Array<int>& ra_idx) |
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143 { |
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144 Array<char>::insert (a, ra_idx); |
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145 return *this; |
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146 } |
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147 |
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148 charMatrix |
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149 charNDArray::matrix_value (void) const |
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150 { |
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151 charMatrix retval; |
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152 |
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153 int nd = ndims (); |
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154 |
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155 switch (nd) |
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156 { |
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157 case 1: |
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158 retval = charMatrix (Array2<char> (*this, dimensions(0), 1)); |
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159 break; |
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160 |
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161 case 2: |
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162 retval = charMatrix (Array2<char> (*this, dimensions(0), |
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163 dimensions(1))); |
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164 break; |
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165 |
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166 default: |
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167 (*current_liboctave_error_handler) |
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168 ("invalid conversion of charNDArray to charMatrix"); |
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169 break; |
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170 } |
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171 |
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172 return retval; |
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173 } |
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174 |
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175 void |
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176 charNDArray::increment_index (Array<int>& ra_idx, |
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177 const dim_vector& dimensions, |
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178 int start_dimension) |
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179 { |
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180 ::increment_index (ra_idx, dimensions, start_dimension); |
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181 } |
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182 |
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183 int |
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184 charNDArray::compute_index (Array<int>& ra_idx, |
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185 const dim_vector& dimensions) |
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186 { |
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187 return ::compute_index (ra_idx, dimensions); |
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188 } |
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189 |
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190 /* |
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191 ;;; Local Variables: *** |
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192 ;;; mode: C++ *** |
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193 ;;; End: *** |
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194 */ |
