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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 (octave_range_h) |
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24 #define octave_range_h 1 |
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25 |
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26 #if defined (__GNUG__) && defined (USE_PRAGMA_INTERFACE_IMPLEMENTATION) |
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27 #pragma interface |
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28 #endif |
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29 |
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30 #include <cstdlib> |
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31 |
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32 #include <iostream> |
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33 #include <string> |
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34 |
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35 #include "Range.h" |
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36 |
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37 #include "lo-mappers.h" |
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38 #include "lo-utils.h" |
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39 #include "mx-base.h" |
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40 #include "oct-alloc.h" |
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41 #include "str-vec.h" |
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42 |
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43 #include "error.h" |
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44 #include "oct-stream.h" |
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45 #include "ov-base.h" |
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46 #include "ov-typeinfo.h" |
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47 |
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48 class Octave_map; |
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49 class octave_value_list; |
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50 |
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51 class tree_walker; |
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52 |
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53 // Range values. |
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54 |
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55 class |
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56 octave_range : public octave_base_value |
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57 { |
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58 public: |
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59 |
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60 octave_range (void) |
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61 : octave_base_value () { } |
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62 |
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63 octave_range (double base, double limit, double inc) |
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64 : octave_base_value (), range (base, limit, inc) |
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65 { |
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66 if (range.nelem () < 0) |
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67 ::error ("invalid range"); |
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68 } |
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69 |
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70 octave_range (const Range& r) |
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71 : octave_base_value (), range (r) |
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72 { |
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73 if (range.nelem () < 0) |
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74 ::error ("invalid range"); |
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75 } |
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76 |
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77 octave_range (const octave_range& r) |
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78 : octave_base_value (), range (r.range) { } |
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79 |
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80 ~octave_range (void) { } |
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81 |
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82 octave_value *clone (void) const { return new octave_range (*this); } |
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83 octave_value *empty_clone (void) const { return new octave_range (); } |
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84 |
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85 type_conv_fcn numeric_conversion_function (void) const; |
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86 |
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87 octave_value *try_narrowing_conversion (void); |
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88 |
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89 octave_value subsref (const std::string& type, |
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90 const std::list<octave_value_list>& idx); |
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91 |
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92 octave_value_list subsref (const std::string&, |
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93 const std::list<octave_value_list>&, int) |
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94 { |
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95 panic_impossible (); |
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96 return octave_value_list (); |
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97 } |
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98 |
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99 octave_value do_index_op (const octave_value_list& idx, int resize_ok); |
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100 |
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101 octave_value do_index_op (const octave_value_list& idx) |
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102 { return do_index_op (idx, 0); } |
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103 |
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104 idx_vector index_vector (void) const { return idx_vector (range); } |
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105 |
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106 dim_vector dims (void) const |
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107 { |
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108 int n = range.nelem (); |
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109 return dim_vector (n > 0, n); |
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110 } |
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111 |
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112 octave_value resize (const dim_vector& dv) const |
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113 { NDArray retval = array_value (); retval.resize (dv); return retval; } |
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114 |
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115 size_t byte_size (void) const { return 3 * sizeof (double); } |
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116 |
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117 octave_value reshape (const dim_vector& new_dims) const |
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118 { return NDArray (array_value().reshape (new_dims)); } |
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119 |
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120 bool is_defined (void) const { return true; } |
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121 |
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122 bool is_constant (void) const { return true; } |
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123 |
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124 bool is_range (void) const { return true; } |
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125 |
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126 octave_value all (int dim = 0) const; |
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127 |
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128 octave_value any (int dim = 0) const; |
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129 |
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130 bool is_real_type (void) const { return true; } |
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131 |
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132 bool valid_as_scalar_index (void) const |
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133 { |
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134 double b = range.base (); |
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135 return (range.nelem () == 1 |
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136 && ! xisnan (b) && D_NINT (b) == b && NINT (b) == 1); |
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137 } |
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138 |
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139 bool valid_as_zero_index (void) const |
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140 { |
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141 double b = range.base (); |
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142 return (range.nelem () == 1 |
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143 && ! xisnan (b) && D_NINT (b) == b && NINT (b) == 0); |
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144 } |
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145 |
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146 bool is_numeric_type (void) const { return true; } |
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147 |
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148 // XXX DO ME XXX |
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149 bool is_true (void) const; |
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150 |
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151 double double_value (bool = false) const; |
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152 |
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153 double scalar_value (bool frc_str_conv = false) const |
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154 { return double_value (frc_str_conv); } |
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155 |
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156 Matrix matrix_value (bool = false) const |
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157 { return range.matrix_value (); } |
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158 |
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159 NDArray array_value (bool = false) const |
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160 { return range.matrix_value (); } |
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161 |
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162 Complex complex_value (bool = false) const; |
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163 |
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164 ComplexMatrix complex_matrix_value (bool = false) const |
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165 { return ComplexMatrix (range.matrix_value ()); } |
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166 |
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167 ComplexNDArray complex_array_value (bool = false) const |
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168 { return ComplexMatrix (range.matrix_value ()); } |
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169 |
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170 Range range_value (void) const { return range; } |
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171 |
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172 octave_value convert_to_str_internal (bool pad, bool force) const; |
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173 |
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174 void print (std::ostream& os, bool pr_as_read_syntax = false) const; |
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175 |
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176 void print_raw (std::ostream& os, bool pr_as_read_syntax = false) const; |
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177 |
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178 bool print_name_tag (std::ostream& os, const std::string& name) const; |
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179 |
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180 bool save_ascii (std::ostream& os, bool& infnan_warned, |
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181 bool strip_nan_and_inf); |
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182 |
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183 bool load_ascii (std::istream& is); |
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184 |
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185 bool save_binary (std::ostream& os, bool& save_as_floats); |
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186 |
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187 bool load_binary (std::istream& is, bool swap, |
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188 oct_mach_info::float_format fmt); |
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189 |
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190 #if defined (HAVE_HDF5) |
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191 bool save_hdf5 (hid_t loc_id, const char *name, bool save_as_floats); |
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192 |
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193 bool load_hdf5 (hid_t loc_id, const char *name, bool have_h5giterate_bug); |
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194 #endif |
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195 |
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196 int write (octave_stream& os, int block_size, |
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197 oct_data_conv::data_type output_type, int skip, |
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198 oct_mach_info::float_format flt_fmt) const |
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199 { |
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200 // XXX FIXME XXX -- could be more memory efficient by having a |
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201 // special case of the octave_stream::write method for ranges. |
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202 |
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203 return os.write (matrix_value (), block_size, output_type, skip, |
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204 flt_fmt); |
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205 } |
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206 |
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207 private: |
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208 |
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209 Range range; |
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210 |
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211 DECLARE_OCTAVE_ALLOCATOR |
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212 |
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213 DECLARE_OV_TYPEID_FUNCTIONS_AND_DATA |
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214 }; |
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215 |
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216 #endif |
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217 |
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218 /* |
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219 ;;; Local Variables: *** |
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220 ;;; mode: C++ *** |
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221 ;;; End: *** |
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222 */ |
