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1 /* |
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2 |
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3 Copyright (C) 1996, 1997 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 #if defined (__GNUG__) && defined (USE_PRAGMA_INTERFACE_IMPLEMENTATION) |
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24 #pragma implementation |
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25 #endif |
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26 |
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27 #ifdef HAVE_CONFIG_H |
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28 #include <config.h> |
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29 #endif |
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30 |
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31 #include <climits> |
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32 |
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33 #include <iostream> |
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34 |
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35 #include "lo-ieee.h" |
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36 #include "lo-utils.h" |
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37 #include "mx-base.h" |
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38 #include "quit.h" |
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39 |
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40 #include "gripes.h" |
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41 #include "oct-obj.h" |
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42 #include "oct-lvalue.h" |
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43 #include "ops.h" |
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44 #include "ov-base.h" |
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45 #include "ov-base-mat.h" |
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46 #include "ov-base-mat.cc" |
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47 #include "ov-scalar.h" |
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48 #include "ov-re-mat.h" |
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49 #include "pr-output.h" |
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50 #include "variables.h" |
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51 |
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52 #if ! defined (UCHAR_MAX) |
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53 #define UCHAR_MAX 255 |
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54 #endif |
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55 |
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56 template class octave_base_matrix<NDArray>; |
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57 |
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58 DEFINE_OCTAVE_ALLOCATOR (octave_matrix); |
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59 |
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60 DEFINE_OV_TYPEID_FUNCTIONS_AND_DATA (octave_matrix, "matrix", "double"); |
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61 |
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62 octave_value * |
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63 octave_matrix::try_narrowing_conversion (void) |
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64 { |
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65 octave_value *retval = 0; |
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66 |
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67 if (matrix.nelem () == 1) |
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68 retval = new octave_scalar (matrix (0)); |
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69 |
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70 return retval; |
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71 } |
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72 |
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73 bool |
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74 octave_matrix::valid_as_scalar_index (void) const |
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75 { |
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76 // XXX FIXME XXX |
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77 return false; |
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78 } |
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79 |
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80 double |
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81 octave_matrix::double_value (bool) const |
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82 { |
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83 double retval = lo_ieee_nan_value (); |
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84 |
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85 if (numel () > 0) |
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86 { |
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87 // XXX FIXME XXX -- is warn_fortran_indexing the right variable here? |
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88 if (Vwarn_fortran_indexing) |
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89 gripe_implicit_conversion ("real matrix", "real scalar"); |
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90 |
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91 retval = matrix (0, 0); |
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92 } |
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93 else |
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94 gripe_invalid_conversion ("real matrix", "real scalar"); |
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95 |
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96 return retval; |
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97 } |
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98 |
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99 // XXX FIXME XXX |
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100 |
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101 Matrix |
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102 octave_matrix::matrix_value (bool) const |
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103 { |
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104 return matrix.matrix_value (); |
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105 } |
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106 |
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107 Complex |
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108 octave_matrix::complex_value (bool) const |
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109 { |
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110 double tmp = lo_ieee_nan_value (); |
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111 |
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112 Complex retval (tmp, tmp); |
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113 |
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114 // XXX FIXME XXX -- maybe this should be a function, valid_as_scalar() |
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115 if (rows () > 0 && columns () > 0) |
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116 { |
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117 // XXX FIXME XXX -- is warn_fortran_indexing the right variable here? |
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118 if (Vwarn_fortran_indexing) |
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119 gripe_implicit_conversion ("real matrix", "complex scalar"); |
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120 |
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121 retval = matrix (0, 0); |
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122 } |
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123 else |
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124 gripe_invalid_conversion ("real matrix", "complex scalar"); |
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125 |
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126 return retval; |
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127 } |
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128 |
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129 // XXX FIXME XXX |
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130 |
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131 ComplexMatrix |
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132 octave_matrix::complex_matrix_value (bool) const |
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133 { |
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134 return ComplexMatrix (matrix.matrix_value ()); |
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135 } |
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136 |
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137 streamoff_array |
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138 octave_matrix::streamoff_array_value (void) const |
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139 { |
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140 streamoff_array retval (dims ()); |
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141 |
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142 int nel = numel (); |
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143 |
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144 for (int i = 0; i < nel; i++) |
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145 { |
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146 double d = matrix(i); |
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147 |
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148 if (D_NINT (d) == d) |
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149 retval(i) = std::streamoff (static_cast<long> (d)); |
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150 else |
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151 { |
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152 error ("conversion to streamoff_array value failed"); |
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153 break; |
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154 } |
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155 } |
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156 |
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157 return retval; |
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158 } |
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159 |
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160 octave_value |
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161 octave_matrix::convert_to_str_internal (bool, bool) const |
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162 { |
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163 octave_value retval; |
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164 |
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165 int nr = matrix.rows (); |
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166 int nc = matrix.columns (); |
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167 |
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168 if (nr == 0 && nc == 0) |
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169 { |
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170 char s = '\0'; |
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171 retval = octave_value (&s); |
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172 } |
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173 else |
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174 { |
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175 if (nr == 0 || nc == 0) |
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176 { |
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177 char s = '\0'; |
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178 retval = octave_value (&s); |
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179 } |
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180 else |
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181 { |
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182 charMatrix chm (nr, nc); |
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183 |
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184 bool warned = false; |
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185 |
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186 for (int j = 0; j < nc; j++) |
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187 { |
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188 for (int i = 0; i < nr; i++) |
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189 { |
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190 OCTAVE_QUIT; |
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191 |
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192 double d = matrix (i, j); |
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193 |
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194 if (xisnan (d)) |
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195 { |
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196 ::error ("invalid conversion from NaN to character"); |
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197 return retval; |
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198 } |
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199 else |
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200 { |
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201 int ival = NINT (d); |
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202 |
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203 if (ival < 0 || ival > UCHAR_MAX) |
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204 { |
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205 // XXX FIXME XXX -- is there something |
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206 // better we could do? |
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207 |
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208 ival = 0; |
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209 |
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210 if (! warned) |
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211 { |
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212 ::warning ("range error for conversion to character value"); |
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213 warned = true; |
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214 } |
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215 } |
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216 |
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217 chm (i, j) = static_cast<char> (ival); |
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218 } |
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219 } |
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220 } |
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221 |
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222 retval = octave_value (chm, 1); |
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223 } |
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224 } |
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225 |
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226 return retval; |
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227 } |
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228 |
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229 void |
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230 octave_matrix::print_raw (std::ostream& os, |
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231 bool pr_as_read_syntax) const |
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232 { |
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233 octave_print_internal (os, matrix, pr_as_read_syntax, |
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234 current_print_indent_level ()); |
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235 } |
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236 |
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237 /* |
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238 ;;; Local Variables: *** |
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239 ;;; mode: C++ *** |
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240 ;;; End: *** |
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241 */ |
