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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 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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3503
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27 #include <iostream> |
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28 |
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29 #include "lo-ieee.h" |
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30 #include "lo-utils.h" |
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31 |
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32 #include "gripes.h" |
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33 #include "ops.h" |
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34 #include "oct-obj.h" |
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35 #include "ov-range.h" |
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36 #include "ov-re-mat.h" |
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37 #include "ov-scalar.h" |
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38 #include "pr-output.h" |
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39 |
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40 #include "byte-swap.h" |
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41 #include "ls-hdf5.h" |
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42 #include "ls-utils.h" |
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43 |
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3219
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44 DEFINE_OCTAVE_ALLOCATOR (octave_range); |
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45 |
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4612
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46 DEFINE_OV_TYPEID_FUNCTIONS_AND_DATA (octave_range, "range", "double"); |
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47 |
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48 static octave_base_value * |
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49 default_numeric_conversion_function (const octave_base_value& a) |
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50 { |
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51 CAST_CONV_ARG (const octave_range&); |
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52 |
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53 return new octave_matrix (v.matrix_value ()); |
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54 } |
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55 |
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56 octave_base_value::type_conv_fcn |
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57 octave_range::numeric_conversion_function (void) const |
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58 { |
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59 return default_numeric_conversion_function; |
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60 } |
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61 |
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62 octave_base_value * |
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63 octave_range::try_narrowing_conversion (void) |
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64 { |
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65 octave_base_value *retval = 0; |
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66 |
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67 switch (range.nelem ()) |
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68 { |
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69 case 1: |
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70 retval = new octave_scalar (range.base ()); |
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71 break; |
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72 |
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73 case 0: |
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74 retval = new octave_matrix (Matrix (1, 0)); |
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75 break; |
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76 |
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77 default: |
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78 break; |
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79 } |
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80 |
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81 return retval; |
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82 } |
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83 |
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84 octave_value |
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85 octave_range::subsref (const std::string& type, |
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86 const std::list<octave_value_list>& idx) |
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87 { |
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88 octave_value retval; |
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89 |
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90 switch (type[0]) |
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91 { |
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92 case '(': |
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93 retval = do_index_op (idx.front ()); |
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94 break; |
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95 |
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96 case '{': |
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97 case '.': |
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98 { |
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99 std::string nm = type_name (); |
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100 error ("%s cannot be indexed with %c", nm.c_str (), type[0]); |
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101 } |
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102 break; |
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103 |
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104 default: |
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105 panic_impossible (); |
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106 } |
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107 |
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108 return retval.next_subsref (type, idx); |
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109 } |
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110 |
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111 octave_value |
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112 octave_range::do_index_op (const octave_value_list& idx, bool resize_ok) |
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113 { |
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114 // FIXME -- this doesn't solve the problem of |
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115 // |
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116 // a = 1:5; a(1, 1, 1) |
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117 // |
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118 // and similar constructions. Hmm... |
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119 |
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120 // FIXME -- using this constructor avoids possibly narrowing |
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121 // the range to a scalar value. Need a better solution to this |
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122 // problem. |
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123 |
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124 octave_value tmp (new octave_matrix (range.matrix_value ())); |
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125 |
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126 return tmp.do_index_op (idx, resize_ok); |
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127 } |
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128 |
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129 double |
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130 octave_range::double_value (bool) const |
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131 { |
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132 double retval = lo_ieee_nan_value (); |
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133 |
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134 octave_idx_type nel = range.nelem (); |
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135 |
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136 if (nel > 0) |
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137 { |
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138 gripe_implicit_conversion ("Octave:array-as-scalar", |
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139 "range", "real scalar"); |
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140 |
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141 retval = range.base (); |
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142 } |
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143 else |
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144 gripe_invalid_conversion ("range", "real scalar"); |
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145 |
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146 return retval; |
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147 } |
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148 |
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149 octave_value |
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4017
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150 octave_range::all (int dim) const |
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151 { |
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152 // FIXME -- this is a potential waste of memory. |
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153 |
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154 Matrix m = range.matrix_value (); |
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155 |
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156 return m.all (dim); |
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157 } |
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158 |
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159 octave_value |
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160 octave_range::any (int dim) const |
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161 { |
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162 // FIXME -- this is a potential waste of memory. |
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163 |
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164 Matrix m = range.matrix_value (); |
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165 |
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166 return m.any (dim); |
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167 } |
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168 |
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169 bool |
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170 octave_range::is_true (void) const |
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171 { |
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172 bool retval = false; |
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173 |
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174 if (range.nelem () != 0) |
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175 { |
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176 // FIXME -- this is a potential waste of memory. |
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177 |
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178 Matrix m ((range.matrix_value () . all ()) . all ()); |
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179 |
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180 retval = (m.rows () == 1 && m.columns () == 1 && m (0, 0) != 0.0); |
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181 } |
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182 |
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183 return retval; |
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184 } |
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185 |
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186 Complex |
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187 octave_range::complex_value (bool) const |
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188 { |
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189 double tmp = lo_ieee_nan_value (); |
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190 |
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191 Complex retval (tmp, tmp); |
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192 |
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193 octave_idx_type nel = range.nelem (); |
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194 |
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195 if (nel > 0) |
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196 { |
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197 gripe_implicit_conversion ("Octave:array-as-scalar", |
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198 "range", "complex scalar"); |
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199 |
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200 retval = range.base (); |
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201 } |
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202 else |
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203 gripe_invalid_conversion ("range", "complex scalar"); |
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204 |
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205 return retval; |
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206 } |
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207 |
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208 octave_value |
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209 octave_range::resize (const dim_vector& dv, bool fill) const |
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210 { |
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211 NDArray retval = array_value (); |
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212 if (fill) |
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213 retval.resize (dv, NDArray::resize_fill_value()); |
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214 else |
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215 retval.resize (dv); |
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216 return retval; |
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217 } |
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218 |
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219 octave_value |
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220 octave_range::convert_to_str_internal (bool pad, bool force, char type) const |
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221 { |
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222 octave_value tmp (range.matrix_value ()); |
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223 return tmp.convert_to_str (pad, force, type); |
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224 } |
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225 |
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226 void |
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227 octave_range::print (std::ostream& os, bool pr_as_read_syntax) const |
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228 { |
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229 print_raw (os, pr_as_read_syntax); |
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230 newline (os); |
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231 } |
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232 |
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233 void |
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234 octave_range::print_raw (std::ostream& os, bool pr_as_read_syntax) const |
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235 { |
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236 octave_print_internal (os, range, pr_as_read_syntax, |
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237 current_print_indent_level ()); |
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238 } |
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239 |
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240 bool |
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241 octave_range::print_name_tag (std::ostream& os, const std::string& name) const |
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242 { |
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243 bool retval = false; |
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244 |
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245 octave_idx_type n = range.nelem (); |
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246 |
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247 indent (os); |
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248 |
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249 if (n == 0 || n == 1) |
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250 os << name << " = "; |
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251 else |
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252 { |
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253 os << name << " ="; |
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254 newline (os); |
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255 newline (os); |
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256 retval = true; |
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257 } |
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258 |
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259 return retval; |
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260 } |
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261 |
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262 // Skip white space and comments on stream IS. |
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263 |
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264 static void |
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265 skip_comments (std::istream& is) |
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266 { |
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267 char c = '\0'; |
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268 while (is.get (c)) |
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269 { |
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270 if (c == ' ' || c == '\t' || c == '\n') |
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271 ; // Skip whitespace on way to beginning of next line. |
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272 else |
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273 break; |
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274 } |
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275 |
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276 for (;;) |
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277 { |
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278 if (is && (c == '%' || c == '#')) |
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279 while (is.get (c) && c != '\n') |
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280 ; // Skip to beginning of next line, ignoring everything. |
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281 else |
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282 break; |
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283 } |
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284 } |
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285 |
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286 bool |
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287 octave_range::save_ascii (std::ostream& os) |
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288 { |
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289 Range r = range_value (); |
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290 double base = r.base (); |
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291 double limit = r.limit (); |
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292 double inc = r.inc (); |
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293 |
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294 os << "# base, limit, increment\n"; |
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295 octave_write_double (os, base); |
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296 os << " "; |
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297 octave_write_double (os, limit); |
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298 os << " "; |
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299 octave_write_double (os, inc); |
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300 os << "\n"; |
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301 |
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302 return true; |
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303 } |
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304 |
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305 bool |
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306 octave_range::load_ascii (std::istream& is) |
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307 { |
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308 // # base, limit, range comment added by save (). |
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309 skip_comments (is); |
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310 |
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311 is >> range; |
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312 |
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313 if (!is) |
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314 { |
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315 error ("load: failed to load range constant"); |
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316 return false; |
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317 } |
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318 |
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319 return true; |
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320 } |
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321 |
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322 bool |
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323 octave_range::save_binary (std::ostream& os, bool& /* save_as_floats */) |
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324 { |
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325 char tmp = LS_DOUBLE; |
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326 os.write (reinterpret_cast<char *> (&tmp), 1); |
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327 Range r = range_value (); |
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328 double bas = r.base (); |
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329 double lim = r.limit (); |
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330 double inc = r.inc (); |
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331 os.write (reinterpret_cast<char *> (&bas), 8); |
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332 os.write (reinterpret_cast<char *> (&lim), 8); |
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333 os.write (reinterpret_cast<char *> (&inc), 8); |
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334 |
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335 return true; |
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336 } |
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337 |
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338 bool |
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339 octave_range::load_binary (std::istream& is, bool swap, |
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340 oct_mach_info::float_format /* fmt */) |
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341 { |
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342 char tmp; |
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343 if (! is.read (reinterpret_cast<char *> (&tmp), 1)) |
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344 return false; |
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345 double bas, lim, inc; |
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5760
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346 if (! is.read (reinterpret_cast<char *> (&bas), 8)) |
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347 return false; |
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348 if (swap) |
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4944
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349 swap_bytes<8> (&bas); |
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5760
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350 if (! is.read (reinterpret_cast<char *> (&lim), 8)) |
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4687
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351 return false; |
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352 if (swap) |
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4944
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353 swap_bytes<8> (&lim); |
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5760
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354 if (! is.read (reinterpret_cast<char *> (&inc), 8)) |
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355 return false; |
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356 if (swap) |
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4944
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357 swap_bytes<8> (&inc); |
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358 Range r (bas, lim, inc); |
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359 range = r; |
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360 return true; |
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361 } |
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362 |
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363 #if defined (HAVE_HDF5) |
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4944
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364 |
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4687
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365 // The following subroutines creates an HDF5 representation of the way |
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366 // we will store Octave range types (triplets of floating-point numbers). |
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367 // NUM_TYPE is the HDF5 numeric type to use for storage (e.g. |
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368 // H5T_NATIVE_DOUBLE to save as 'double'). Note that any necessary |
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369 // conversions are handled automatically by HDF5. |
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370 |
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371 static hid_t |
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372 hdf5_make_range_type (hid_t num_type) |
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373 { |
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374 hid_t type_id = H5Tcreate (H5T_COMPOUND, sizeof (double) * 3); |
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375 |
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376 H5Tinsert (type_id, "base", 0 * sizeof (double), num_type); |
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377 H5Tinsert (type_id, "limit", 1 * sizeof (double), num_type); |
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378 H5Tinsert (type_id, "increment", 2 * sizeof (double), num_type); |
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379 |
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380 return type_id; |
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381 } |
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382 |
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383 bool |
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384 octave_range::save_hdf5 (hid_t loc_id, const char *name, |
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385 bool /* save_as_floats */) |
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386 { |
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4792
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387 hsize_t dimens[3]; |
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4687
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388 hid_t space_hid = -1, type_hid = -1, data_hid = -1; |
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389 bool retval = true; |
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390 |
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4815
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391 space_hid = H5Screate_simple (0, dimens, 0); |
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4687
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392 if (space_hid < 0) return false; |
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393 |
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394 type_hid = hdf5_make_range_type (H5T_NATIVE_DOUBLE); |
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395 if (type_hid < 0) |
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396 { |
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397 H5Sclose (space_hid); |
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398 return false; |
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399 } |
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400 |
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401 data_hid = H5Dcreate (loc_id, name, type_hid, space_hid, H5P_DEFAULT); |
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402 if (data_hid < 0) |
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403 { |
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404 H5Sclose (space_hid); |
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405 H5Tclose (type_hid); |
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406 return false; |
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407 } |
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408 |
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409 Range r = range_value (); |
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410 double range_vals[3]; |
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411 range_vals[0] = r.base (); |
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412 range_vals[1] = r.limit (); |
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413 range_vals[2] = r.inc (); |
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414 |
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415 retval = H5Dwrite (data_hid, type_hid, H5S_ALL, H5S_ALL, H5P_DEFAULT, |
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4815
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416 range_vals) >= 0; |
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4687
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417 |
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418 H5Dclose (data_hid); |
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419 H5Tclose (type_hid); |
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420 H5Sclose (space_hid); |
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4837
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421 |
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4687
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422 return retval; |
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423 } |
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424 |
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425 bool |
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426 octave_range::load_hdf5 (hid_t loc_id, const char *name, |
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427 bool /* have_h5giterate_bug */) |
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428 { |
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429 bool retval = false; |
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4837
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430 |
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4687
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431 hid_t data_hid = H5Dopen (loc_id, name); |
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432 hid_t type_hid = H5Dget_type (data_hid); |
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433 |
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434 hid_t range_type = hdf5_make_range_type (H5T_NATIVE_DOUBLE); |
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435 |
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436 if (! hdf5_types_compatible (type_hid, range_type)) |
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437 { |
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4837
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438 H5Tclose (range_type); |
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4687
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439 H5Dclose (data_hid); |
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440 return false; |
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441 } |
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442 |
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443 hid_t space_hid = H5Dget_space (data_hid); |
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444 hsize_t rank = H5Sget_simple_extent_ndims (space_hid); |
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445 |
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446 if (rank != 0) |
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447 { |
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4837
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448 H5Tclose (range_type); |
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4687
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449 H5Sclose (space_hid); |
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450 H5Dclose (data_hid); |
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451 return false; |
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452 } |
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453 |
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454 double rangevals[3]; |
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455 if (H5Dread (data_hid, range_type, H5S_ALL, H5S_ALL, H5P_DEFAULT, |
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4815
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456 rangevals) >= 0) |
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4687
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457 { |
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458 retval = true; |
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459 Range r (rangevals[0], rangevals[1], rangevals[2]); |
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460 range = r; |
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461 } |
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462 |
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4837
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463 H5Tclose (range_type); |
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4687
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464 H5Sclose (space_hid); |
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465 H5Dclose (data_hid); |
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4837
|
466 |
|
4687
|
467 return retval; |
|
|
468 } |
|
4944
|
469 |
|
4687
|
470 #endif |
|
|
471 |
|
5900
|
472 mxArray * |
|
|
473 octave_range::as_mxArray (void) const |
|
|
474 { |
|
|
475 mxArray *retval = new mxArray (mxDOUBLE_CLASS, dims (), mxREAL); |
|
|
476 |
|
|
477 double *pr = static_cast<double *> (retval->get_data ()); |
|
|
478 |
|
6686
|
479 mwSize nel = numel (); |
|
5900
|
480 |
|
|
481 Matrix m = matrix_value (); |
|
|
482 |
|
|
483 const double *p = m.data (); |
|
|
484 |
|
6686
|
485 for (mwSize i = 0; i < nel; i++) |
|
5900
|
486 pr[i] = p[i]; |
|
|
487 |
|
|
488 return retval; |
|
|
489 } |
|
|
490 |
|
2376
|
491 /* |
|
|
492 ;;; Local Variables: *** |
|
|
493 ;;; mode: C++ *** |
|
|
494 ;;; End: *** |
|
|
495 */ |
