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1 /* |
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2 |
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3 Copyright (C) 2004 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 2, or (at your option) any |
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10 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, write to the Free |
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19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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20 |
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21 */ |
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22 |
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23 #include <cstdlib> |
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24 |
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25 #include <iostream> |
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26 #include <string> |
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27 |
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28 #include "mx-base.h" |
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29 #include "oct-alloc.h" |
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30 #include "so-array.h" |
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31 #include "str-vec.h" |
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32 |
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33 #include "error.h" |
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34 #include "oct-stream.h" |
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35 #include "ov-base.h" |
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36 #include "ov-base-int.h" |
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37 #include "ov-typeinfo.h" |
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38 #include "gripes.h" |
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39 |
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40 class |
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41 OCTAVE_VALUE_INT_MATRIX_T |
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42 : public octave_base_int_matrix<OCTAVE_INT_NDARRAY_T> |
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43 { |
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44 public: |
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45 |
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46 OCTAVE_VALUE_INT_MATRIX_T (void) |
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47 : octave_base_int_matrix<OCTAVE_INT_NDARRAY_T> () { } |
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48 |
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49 OCTAVE_VALUE_INT_MATRIX_T (const OCTAVE_INT_NDARRAY_T& nda) |
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50 : octave_base_int_matrix<OCTAVE_INT_NDARRAY_T> (nda) { } |
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51 |
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52 ~OCTAVE_VALUE_INT_MATRIX_T (void) { } |
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53 |
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54 octave_value *clone (void) const |
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55 { return new OCTAVE_VALUE_INT_MATRIX_T (*this); } |
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56 |
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57 octave_value *empty_clone (void) const |
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58 { return new OCTAVE_VALUE_INT_MATRIX_T (); } |
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59 |
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60 OCTAVE_INT_NDARRAY_T |
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61 OCTAVE_VALUE_INT_NDARRAY_EXTRACTOR_FUNCTION (void) const |
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62 { return matrix; } |
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63 |
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64 double |
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65 double_value (bool = false) const |
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66 { |
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67 double retval = lo_ieee_nan_value (); |
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68 |
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69 if (numel () > 0) |
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70 { |
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71 // XXX FIXME XXX -- is warn_fortran_indexing the right variable here? |
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72 if (Vwarn_fortran_indexing) |
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73 gripe_implicit_conversion (type_name (), "real scalar"); |
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74 |
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75 retval = double (matrix(0)); |
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76 } |
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77 else |
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78 gripe_invalid_conversion (type_name (), "real scalar"); |
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79 |
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80 return retval; |
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81 |
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82 } |
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83 |
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84 double scalar_value (bool = false) const { return double_value (); } |
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85 |
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86 NDArray |
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87 array_value (bool = false) const |
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88 { |
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89 NDArray retval (matrix.dims ()); |
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90 int nel = matrix.numel (); |
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91 for (int i = 0; i < nel; i++) |
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92 retval(i) = double (matrix(i)); |
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93 return retval; |
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94 } |
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95 |
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96 ComplexNDArray |
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97 complex_array_value (bool = false) const |
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98 { |
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99 ComplexNDArray retval (matrix.dims ()); |
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100 int nel = matrix.numel (); |
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101 for (int i = 0; i < nel; i++) |
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102 retval(i) = Complex (double (matrix(i))); |
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103 return retval; |
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104 } |
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105 |
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106 idx_vector index_vector (void) const { return idx_vector (matrix); } |
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107 |
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108 int write (octave_stream& os, int block_size, |
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109 oct_data_conv::data_type output_type, int skip, |
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110 oct_mach_info::float_format flt_fmt) const |
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111 { return os.write (matrix, block_size, output_type, skip, flt_fmt); } |
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112 |
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113 private: |
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114 |
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115 DECLARE_OCTAVE_ALLOCATOR |
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116 |
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117 DECLARE_OV_TYPEID_FUNCTIONS_AND_DATA |
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118 }; |
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119 |
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120 class |
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121 OCTAVE_VALUE_INT_SCALAR_T |
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122 : public octave_base_int_scalar<OCTAVE_INT_T> |
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123 { |
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124 public: |
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125 |
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126 OCTAVE_VALUE_INT_SCALAR_T (void) |
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127 : octave_base_int_scalar<OCTAVE_INT_T> () { } |
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128 |
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129 OCTAVE_VALUE_INT_SCALAR_T (const OCTAVE_INT_T& nda) |
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130 : octave_base_int_scalar<OCTAVE_INT_T> (nda) { } |
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131 |
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132 ~OCTAVE_VALUE_INT_SCALAR_T (void) { } |
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133 |
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134 octave_value *clone (void) const |
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135 { return new OCTAVE_VALUE_INT_SCALAR_T (*this); } |
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136 |
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137 octave_value *empty_clone (void) const |
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138 { return new OCTAVE_VALUE_INT_SCALAR_T (); } |
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139 |
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140 octave_value do_index_op (const octave_value_list& idx, int resize_ok) |
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141 { |
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142 octave_value retval; |
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143 |
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144 if (idx.valid_scalar_indices ()) |
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145 retval = scalar; |
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146 else |
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147 { |
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148 // XXX FIXME XXX -- this doesn't solve the problem of |
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149 // |
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150 // a = 1; a([1,1], [1,1], [1,1]) |
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151 // |
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152 // and similar constructions. Hmm... |
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153 |
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154 // XXX FIXME XXX -- using this constructor avoids narrowing the |
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155 // 1x1 matrix back to a scalar value. Need a better solution |
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156 // to this problem. |
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157 |
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158 octave_value tmp |
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159 (new OCTAVE_VALUE_INT_MATRIX_T |
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160 (OCTAVE_VALUE_INT_NDARRAY_EXTRACTOR_FUNCTION ())); |
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161 |
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162 retval = tmp.do_index_op (idx, resize_ok); |
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163 } |
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164 |
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165 return retval; |
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166 } |
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167 |
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168 OCTAVE_INT_T |
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169 OCTAVE_VALUE_INT_SCALAR_EXTRACTOR_FUNCTION (void) const |
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170 { return scalar; } |
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171 |
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172 OCTAVE_INT_NDARRAY_T |
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173 OCTAVE_VALUE_INT_NDARRAY_EXTRACTOR_FUNCTION (void) const |
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174 { return OCTAVE_INT_NDARRAY_T (dim_vector (1, 1), scalar); } |
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175 |
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176 octave_value resize (const dim_vector& dv) const |
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177 { |
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178 OCTAVE_INT_NDARRAY_T retval (dv); |
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179 if (dv.numel()) |
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180 retval(0) = scalar; |
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181 return retval; |
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182 } |
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183 |
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184 double double_value (bool = false) const { return double (scalar); } |
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185 |
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186 double scalar_value (bool = false) const { return double (scalar); } |
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187 |
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188 NDArray |
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189 array_value (bool = false) const |
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190 { |
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191 NDArray retval (dim_vector (1,1)); |
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192 retval(0) = double (scalar); |
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193 return retval; |
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194 } |
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195 |
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196 ComplexNDArray |
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197 complex_array_value (bool = false) const |
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198 { |
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199 ComplexNDArray retval (dim_vector (1,1)); |
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200 retval(0) = Complex (double (scalar)); |
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201 return retval; |
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202 } |
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203 |
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204 idx_vector index_vector (void) const { return idx_vector (scalar); } |
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205 |
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206 int write (octave_stream& os, int block_size, |
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207 oct_data_conv::data_type output_type, octave_idx_type skip, |
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208 oct_mach_info::float_format flt_fmt) const |
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209 { |
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210 return os.write (OCTAVE_VALUE_INT_NDARRAY_EXTRACTOR_FUNCTION (), |
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211 block_size, output_type, skip, flt_fmt); |
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212 } |
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213 |
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214 private: |
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215 |
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216 DECLARE_OCTAVE_ALLOCATOR |
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217 |
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218 DECLARE_OV_TYPEID_FUNCTIONS_AND_DATA |
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219 }; |
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220 |
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221 /* |
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222 ;;; Local Variables: *** |
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223 ;;; mode: C++ *** |
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224 ;;; End: *** |
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225 */ |
