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1 /* |
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2 |
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2847
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3 Copyright (C) 1996, 1997 John W. Eaton |
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2376
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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, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
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20 02110-1301, USA. |
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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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3503
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28 #include <iostream> |
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2901
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29 |
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2376
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30 #include "lo-ieee.h" |
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31 #include "lo-utils.h" |
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32 |
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33 #include "gripes.h" |
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34 #include "ops.h" |
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3933
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35 #include "oct-obj.h" |
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2376
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36 #include "ov-range.h" |
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37 #include "ov-re-mat.h" |
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2410
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38 #include "ov-scalar.h" |
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39 #include "pr-output.h" |
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40 |
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4687
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41 #include "byte-swap.h" |
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42 #include "ls-hdf5.h" |
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43 #include "ls-utils.h" |
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44 |
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3219
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45 DEFINE_OCTAVE_ALLOCATOR (octave_range); |
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46 |
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4612
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47 DEFINE_OV_TYPEID_FUNCTIONS_AND_DATA (octave_range, "range", "double"); |
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48 |
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5759
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49 static octave_base_value * |
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50 default_numeric_conversion_function (const octave_base_value& a) |
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2376
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51 { |
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52 CAST_CONV_ARG (const octave_range&); |
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53 |
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54 return new octave_matrix (v.matrix_value ()); |
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55 } |
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56 |
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5759
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57 octave_base_value::type_conv_fcn |
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2376
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58 octave_range::numeric_conversion_function (void) const |
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59 { |
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60 return default_numeric_conversion_function; |
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61 } |
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62 |
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63 octave_base_value * |
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2410
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64 octave_range::try_narrowing_conversion (void) |
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65 { |
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66 octave_base_value *retval = 0; |
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2410
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67 |
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68 switch (range.nelem ()) |
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69 { |
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70 case 1: |
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71 retval = new octave_scalar (range.base ()); |
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72 break; |
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73 |
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74 case 0: |
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4417
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75 retval = new octave_matrix (Matrix (1, 0)); |
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2410
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76 break; |
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77 |
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78 default: |
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79 break; |
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80 } |
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81 |
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82 return retval; |
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83 } |
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84 |
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2436
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85 octave_value |
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4247
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86 octave_range::subsref (const std::string& type, |
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4219
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87 const std::list<octave_value_list>& idx) |
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3933
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88 { |
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89 octave_value retval; |
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90 |
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91 switch (type[0]) |
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92 { |
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93 case '(': |
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94 retval = do_index_op (idx.front ()); |
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95 break; |
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96 |
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97 case '{': |
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98 case '.': |
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99 { |
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100 std::string nm = type_name (); |
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101 error ("%s cannot be indexed with %c", nm.c_str (), type[0]); |
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102 } |
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103 break; |
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104 |
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105 default: |
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106 panic_impossible (); |
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107 } |
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108 |
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109 return retval.next_subsref (type, idx); |
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110 } |
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111 |
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112 octave_value |
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5885
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113 octave_range::do_index_op (const octave_value_list& idx, bool resize_ok) |
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114 { |
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5775
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115 // FIXME -- this doesn't solve the problem of |
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116 // |
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117 // a = 1:5; a(1, 1, 1) |
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118 // |
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119 // and similar constructions. Hmm... |
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120 |
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121 // FIXME -- using this constructor avoids possibly narrowing |
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122 // the range to a scalar value. Need a better solution to this |
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123 // problem. |
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124 |
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125 octave_value tmp (new octave_matrix (range.matrix_value ())); |
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126 |
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3933
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127 return tmp.do_index_op (idx, resize_ok); |
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128 } |
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129 |
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130 double |
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131 octave_range::double_value (bool) const |
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132 { |
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4102
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133 double retval = lo_ieee_nan_value (); |
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134 |
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5275
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135 octave_idx_type nel = range.nelem (); |
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136 |
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4455
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137 if (nel > 0) |
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138 { |
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5781
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139 gripe_implicit_conversion ("Octave:array-as-scalar", |
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140 "range", "real scalar"); |
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141 |
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142 retval = range.base (); |
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143 } |
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144 else |
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145 gripe_invalid_conversion ("range", "real scalar"); |
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146 |
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147 return retval; |
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148 } |
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149 |
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150 octave_value |
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4017
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151 octave_range::all (int dim) const |
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152 { |
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153 // FIXME -- this is a potential waste of memory. |
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154 |
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155 Matrix m = range.matrix_value (); |
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156 |
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4017
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157 return m.all (dim); |
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2376
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158 } |
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159 |
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160 octave_value |
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4017
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161 octave_range::any (int dim) const |
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162 { |
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5775
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163 // FIXME -- this is a potential waste of memory. |
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164 |
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165 Matrix m = range.matrix_value (); |
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166 |
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167 return m.any (dim); |
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168 } |
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169 |
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170 bool |
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171 octave_range::is_true (void) const |
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172 { |
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173 bool retval = false; |
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174 |
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4478
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175 if (range.nelem () != 0) |
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176 { |
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5775
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177 // FIXME -- this is a potential waste of memory. |
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178 |
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179 Matrix m ((range.matrix_value () . all ()) . all ()); |
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180 |
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181 retval = (m.rows () == 1 && m.columns () == 1 && m (0, 0) != 0.0); |
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182 } |
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183 |
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184 return retval; |
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185 } |
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186 |
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187 Complex |
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188 octave_range::complex_value (bool) const |
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189 { |
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4102
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190 double tmp = lo_ieee_nan_value (); |
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191 |
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192 Complex retval (tmp, tmp); |
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193 |
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194 octave_idx_type nel = range.nelem (); |
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195 |
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4455
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196 if (nel > 0) |
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197 { |
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5781
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198 gripe_implicit_conversion ("Octave:array-as-scalar", |
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199 "range", "complex scalar"); |
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200 |
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201 retval = range.base (); |
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202 } |
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203 else |
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204 gripe_invalid_conversion ("range", "complex scalar"); |
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205 |
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206 return retval; |
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207 } |
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208 |
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5731
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209 octave_value |
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210 octave_range::resize (const dim_vector& dv, bool fill) const |
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211 { |
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212 NDArray retval = array_value (); |
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213 if (fill) |
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214 retval.resize (dv, NDArray::resize_fill_value()); |
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215 else |
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216 retval.resize (dv); |
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217 return retval; |
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218 } |
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219 |
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220 octave_value |
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5279
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221 octave_range::convert_to_str_internal (bool pad, bool force, char type) const |
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2449
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222 { |
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223 octave_value tmp (range.matrix_value ()); |
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224 return tmp.convert_to_str (pad, force, type); |
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2449
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225 } |
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226 |
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227 void |
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3523
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228 octave_range::print (std::ostream& os, bool pr_as_read_syntax) const |
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229 { |
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230 print_raw (os, pr_as_read_syntax); |
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231 newline (os); |
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232 } |
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233 |
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234 void |
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3523
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235 octave_range::print_raw (std::ostream& os, bool pr_as_read_syntax) const |
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2901
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236 { |
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237 octave_print_internal (os, range, pr_as_read_syntax, |
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238 current_print_indent_level ()); |
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239 } |
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240 |
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241 bool |
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3523
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242 octave_range::print_name_tag (std::ostream& os, const std::string& name) const |
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243 { |
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2901
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244 bool retval = false; |
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245 |
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5275
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246 octave_idx_type n = range.nelem (); |
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2901
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247 |
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248 indent (os); |
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249 |
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250 if (n == 0 || n == 1) |
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251 os << name << " = "; |
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252 else |
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253 { |
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254 os << name << " ="; |
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255 newline (os); |
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256 newline (os); |
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257 retval = true; |
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258 } |
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259 |
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260 return retval; |
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2376
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261 } |
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262 |
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4687
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263 // Skip white space and comments on stream IS. |
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264 |
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265 static void |
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266 skip_comments (std::istream& is) |
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267 { |
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268 char c = '\0'; |
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269 while (is.get (c)) |
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270 { |
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271 if (c == ' ' || c == '\t' || c == '\n') |
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272 ; // Skip whitespace on way to beginning of next line. |
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273 else |
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274 break; |
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275 } |
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276 |
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277 for (;;) |
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278 { |
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279 if (is && (c == '%' || c == '#')) |
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280 while (is.get (c) && c != '\n') |
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281 ; // Skip to beginning of next line, ignoring everything. |
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282 else |
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283 break; |
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284 } |
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285 } |
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286 |
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287 bool |
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288 octave_range::save_ascii (std::ostream& os, bool& /* infnan_warned */, |
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5956
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289 int /* strip_nan_and_inf */) |
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4687
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290 { |
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291 Range r = range_value (); |
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292 double base = r.base (); |
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293 double limit = r.limit (); |
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294 double inc = r.inc (); |
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295 |
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296 os << "# base, limit, increment\n"; |
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297 octave_write_double (os, base); |
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298 os << " "; |
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299 octave_write_double (os, limit); |
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300 os << " "; |
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301 octave_write_double (os, inc); |
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302 os << "\n"; |
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303 |
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304 return true; |
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305 } |
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306 |
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307 bool |
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308 octave_range::load_ascii (std::istream& is) |
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309 { |
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310 // # base, limit, range comment added by save (). |
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311 skip_comments (is); |
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312 |
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313 is >> range; |
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314 |
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315 if (!is) |
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316 { |
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317 error ("load: failed to load range constant"); |
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318 return false; |
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319 } |
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320 |
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321 return true; |
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322 } |
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323 |
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324 bool |
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325 octave_range::save_binary (std::ostream& os, bool& /* save_as_floats */) |
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326 { |
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5760
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327 char tmp = LS_DOUBLE; |
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328 os.write (reinterpret_cast<char *> (&tmp), 1); |
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4687
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329 Range r = range_value (); |
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330 double bas = r.base (); |
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331 double lim = r.limit (); |
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332 double inc = r.inc (); |
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5760
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333 os.write (reinterpret_cast<char *> (&bas), 8); |
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334 os.write (reinterpret_cast<char *> (&lim), 8); |
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335 os.write (reinterpret_cast<char *> (&inc), 8); |
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4687
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336 |
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337 return true; |
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338 } |
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339 |
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340 bool |
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341 octave_range::load_binary (std::istream& is, bool swap, |
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342 oct_mach_info::float_format /* fmt */) |
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343 { |
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344 char tmp; |
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5760
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345 if (! is.read (reinterpret_cast<char *> (&tmp), 1)) |
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4687
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346 return false; |
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347 double bas, lim, inc; |
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5760
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348 if (! is.read (reinterpret_cast<char *> (&bas), 8)) |
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4687
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349 return false; |
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350 if (swap) |
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4944
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351 swap_bytes<8> (&bas); |
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5760
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352 if (! is.read (reinterpret_cast<char *> (&lim), 8)) |
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4687
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353 return false; |
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354 if (swap) |
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4944
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355 swap_bytes<8> (&lim); |
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5760
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356 if (! is.read (reinterpret_cast<char *> (&inc), 8)) |
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4687
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357 return false; |
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358 if (swap) |
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4944
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359 swap_bytes<8> (&inc); |
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4687
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360 Range r (bas, lim, inc); |
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361 range = r; |
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362 return true; |
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363 } |
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364 |
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365 #if defined (HAVE_HDF5) |
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4944
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366 |
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4687
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367 // The following subroutines creates an HDF5 representation of the way |
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368 // we will store Octave range types (triplets of floating-point numbers). |
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369 // NUM_TYPE is the HDF5 numeric type to use for storage (e.g. |
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370 // H5T_NATIVE_DOUBLE to save as 'double'). Note that any necessary |
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371 // conversions are handled automatically by HDF5. |
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372 |
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373 static hid_t |
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374 hdf5_make_range_type (hid_t num_type) |
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375 { |
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376 hid_t type_id = H5Tcreate (H5T_COMPOUND, sizeof (double) * 3); |
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377 |
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378 H5Tinsert (type_id, "base", 0 * sizeof (double), num_type); |
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379 H5Tinsert (type_id, "limit", 1 * sizeof (double), num_type); |
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380 H5Tinsert (type_id, "increment", 2 * sizeof (double), num_type); |
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381 |
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382 return type_id; |
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383 } |
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384 |
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385 bool |
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386 octave_range::save_hdf5 (hid_t loc_id, const char *name, |
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387 bool /* save_as_floats */) |
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388 { |
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4792
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389 hsize_t dimens[3]; |
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4687
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390 hid_t space_hid = -1, type_hid = -1, data_hid = -1; |
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391 bool retval = true; |
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392 |
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4815
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393 space_hid = H5Screate_simple (0, dimens, 0); |
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4687
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394 if (space_hid < 0) return false; |
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395 |
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396 type_hid = hdf5_make_range_type (H5T_NATIVE_DOUBLE); |
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397 if (type_hid < 0) |
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398 { |
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399 H5Sclose (space_hid); |
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400 return false; |
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401 } |
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402 |
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403 data_hid = H5Dcreate (loc_id, name, type_hid, space_hid, H5P_DEFAULT); |
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404 if (data_hid < 0) |
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405 { |
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406 H5Sclose (space_hid); |
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407 H5Tclose (type_hid); |
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408 return false; |
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409 } |
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410 |
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411 Range r = range_value (); |
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412 double range_vals[3]; |
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413 range_vals[0] = r.base (); |
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414 range_vals[1] = r.limit (); |
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415 range_vals[2] = r.inc (); |
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416 |
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417 retval = H5Dwrite (data_hid, type_hid, H5S_ALL, H5S_ALL, H5P_DEFAULT, |
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4815
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418 range_vals) >= 0; |
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4687
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419 |
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420 H5Dclose (data_hid); |
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421 H5Tclose (type_hid); |
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422 H5Sclose (space_hid); |
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4837
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423 |
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4687
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424 return retval; |
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425 } |
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426 |
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427 bool |
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428 octave_range::load_hdf5 (hid_t loc_id, const char *name, |
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429 bool /* have_h5giterate_bug */) |
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430 { |
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431 bool retval = false; |
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4837
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432 |
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4687
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433 hid_t data_hid = H5Dopen (loc_id, name); |
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434 hid_t type_hid = H5Dget_type (data_hid); |
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435 |
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436 hid_t range_type = hdf5_make_range_type (H5T_NATIVE_DOUBLE); |
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437 |
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438 if (! hdf5_types_compatible (type_hid, range_type)) |
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439 { |
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4837
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440 H5Tclose (range_type); |
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4687
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441 H5Dclose (data_hid); |
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442 return false; |
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443 } |
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444 |
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445 hid_t space_hid = H5Dget_space (data_hid); |
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446 hsize_t rank = H5Sget_simple_extent_ndims (space_hid); |
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447 |
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448 if (rank != 0) |
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449 { |
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4837
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450 H5Tclose (range_type); |
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4687
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451 H5Sclose (space_hid); |
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452 H5Dclose (data_hid); |
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453 return false; |
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454 } |
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455 |
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456 double rangevals[3]; |
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|
457 if (H5Dread (data_hid, range_type, H5S_ALL, H5S_ALL, H5P_DEFAULT, |
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4815
|
458 rangevals) >= 0) |
|
4687
|
459 { |
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460 retval = true; |
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461 Range r (rangevals[0], rangevals[1], rangevals[2]); |
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462 range = r; |
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463 } |
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464 |
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4837
|
465 H5Tclose (range_type); |
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4687
|
466 H5Sclose (space_hid); |
|
|
467 H5Dclose (data_hid); |
|
4837
|
468 |
|
4687
|
469 return retval; |
|
|
470 } |
|
4944
|
471 |
|
4687
|
472 #endif |
|
|
473 |
|
5900
|
474 mxArray * |
|
|
475 octave_range::as_mxArray (void) const |
|
|
476 { |
|
|
477 mxArray *retval = new mxArray (mxDOUBLE_CLASS, dims (), mxREAL); |
|
|
478 |
|
|
479 double *pr = static_cast<double *> (retval->get_data ()); |
|
|
480 |
|
|
481 int nel = numel (); |
|
|
482 |
|
|
483 Matrix m = matrix_value (); |
|
|
484 |
|
|
485 const double *p = m.data (); |
|
|
486 |
|
|
487 for (int i = 0; i < nel; i++) |
|
|
488 pr[i] = p[i]; |
|
|
489 |
|
|
490 return retval; |
|
|
491 } |
|
|
492 |
|
2376
|
493 /* |
|
|
494 ;;; Local Variables: *** |
|
|
495 ;;; mode: C++ *** |
|
|
496 ;;; End: *** |
|
|
497 */ |
