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annotate src/ov-range.cc @ 10828:322f43e0e170
Grammarcheck .txi documentation files.
| author | Rik <octave@nomad.inbox5.com> |
|---|---|
| date | Wed, 28 Jul 2010 12:45:04 -0700 |
| parents | d899b2ee6a37 |
| children | 89f4d7e294cc |
| rev | line source |
|---|---|
| 2376 | 1 /* |
| 2 | |
| 7017 | 3 Copyright (C) 1996, 1997, 1998, 2000, 2002, 2003, 2004, 2005, 2006, |
| 8920 | 4 2007, 2008 John W. Eaton |
| 2376 | 5 |
| 6 This file is part of Octave. | |
| 7 | |
| 8 Octave is free software; you can redistribute it and/or modify it | |
| 9 under the terms of the GNU General Public License as published by the | |
| 7016 | 10 Free Software Foundation; either version 3 of the License, or (at your |
| 11 option) any later version. | |
| 2376 | 12 |
| 13 Octave is distributed in the hope that it will be useful, but WITHOUT | |
| 14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 16 for more details. | |
| 17 | |
| 18 You should have received a copy of the GNU General Public License | |
| 7016 | 19 along with Octave; see the file COPYING. If not, see |
| 20 <http://www.gnu.org/licenses/>. | |
| 2376 | 21 |
| 22 */ | |
| 23 | |
| 24 #ifdef HAVE_CONFIG_H | |
| 25 #include <config.h> | |
| 26 #endif | |
| 27 | |
| 3503 | 28 #include <iostream> |
| 2901 | 29 |
| 2376 | 30 #include "lo-ieee.h" |
| 31 #include "lo-utils.h" | |
| 32 | |
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33 #include "defun.h" |
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34 #include "variables.h" |
| 2376 | 35 #include "gripes.h" |
| 36 #include "ops.h" | |
| 3933 | 37 #include "oct-obj.h" |
| 2376 | 38 #include "ov-range.h" |
| 39 #include "ov-re-mat.h" | |
| 2410 | 40 #include "ov-scalar.h" |
| 2376 | 41 #include "pr-output.h" |
| 42 | |
| 4687 | 43 #include "byte-swap.h" |
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44 #include "ls-ascii-helper.h" |
| 4687 | 45 #include "ls-hdf5.h" |
| 46 #include "ls-utils.h" | |
| 47 | |
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48 // If TRUE, allow ranges with non-integer elements as array indices. |
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49 bool Vallow_noninteger_range_as_index = false; |
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50 |
| 3219 | 51 DEFINE_OCTAVE_ALLOCATOR (octave_range); |
| 2376 | 52 |
| 4612 | 53 DEFINE_OV_TYPEID_FUNCTIONS_AND_DATA (octave_range, "range", "double"); |
| 2376 | 54 |
| 5759 | 55 static octave_base_value * |
| 56 default_numeric_conversion_function (const octave_base_value& a) | |
| 2376 | 57 { |
| 58 CAST_CONV_ARG (const octave_range&); | |
| 59 | |
| 60 return new octave_matrix (v.matrix_value ()); | |
| 61 } | |
| 62 | |
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63 octave_base_value::type_conv_info |
| 2376 | 64 octave_range::numeric_conversion_function (void) const |
| 65 { | |
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66 return octave_base_value::type_conv_info (default_numeric_conversion_function, |
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67 octave_matrix::static_type_id ()); |
| 2376 | 68 } |
| 69 | |
| 5759 | 70 octave_base_value * |
| 2410 | 71 octave_range::try_narrowing_conversion (void) |
| 72 { | |
| 5759 | 73 octave_base_value *retval = 0; |
| 2410 | 74 |
| 75 switch (range.nelem ()) | |
| 76 { | |
| 77 case 1: | |
| 78 retval = new octave_scalar (range.base ()); | |
| 79 break; | |
| 80 | |
| 81 case 0: | |
| 4417 | 82 retval = new octave_matrix (Matrix (1, 0)); |
| 2410 | 83 break; |
| 84 | |
| 8971 | 85 case -2: |
| 86 retval = new octave_matrix (range.matrix_value ()); | |
| 87 break; | |
| 88 | |
| 2410 | 89 default: |
| 90 break; | |
| 91 } | |
| 92 | |
| 93 return retval; | |
| 94 } | |
| 95 | |
| 2436 | 96 octave_value |
| 4247 | 97 octave_range::subsref (const std::string& type, |
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98 const std::list<octave_value_list>& idx) |
| 3933 | 99 { |
| 100 octave_value retval; | |
| 101 | |
| 102 switch (type[0]) | |
| 103 { | |
| 104 case '(': | |
| 105 retval = do_index_op (idx.front ()); | |
| 106 break; | |
| 107 | |
| 108 case '{': | |
| 109 case '.': | |
| 110 { | |
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111 std::string nm = type_name (); |
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112 error ("%s cannot be indexed with %c", nm.c_str (), type[0]); |
| 3933 | 113 } |
| 114 break; | |
| 115 | |
| 116 default: | |
| 117 panic_impossible (); | |
| 118 } | |
| 119 | |
| 120 return retval.next_subsref (type, idx); | |
| 121 } | |
| 122 | |
| 123 octave_value | |
| 5885 | 124 octave_range::do_index_op (const octave_value_list& idx, bool resize_ok) |
| 2436 | 125 { |
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126 if (idx.length () == 1 && ! resize_ok) |
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127 { |
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128 octave_value retval; |
| 2436 | 129 |
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130 // The range can handle a single subscript. |
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131 idx_vector i = idx(0).index_vector (); |
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132 if (! error_state) |
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133 { |
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134 if (i.is_scalar () && i(0) < range.nelem ()) |
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135 retval = range.elem (i(0)); |
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136 else |
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137 retval = range.index (i); |
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138 } |
| 2436 | 139 |
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140 return retval; |
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141 } |
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142 else |
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143 { |
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144 octave_value tmp (new octave_matrix (range.matrix_value ())); |
| 2436 | 145 |
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146 return tmp.do_index_op (idx, resize_ok); |
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147 } |
| 2436 | 148 } |
| 149 | |
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150 idx_vector |
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151 octave_range::index_vector (void) const |
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152 { |
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153 if (idx_cache) |
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154 return *idx_cache; |
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155 else |
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156 { |
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157 if (! Vallow_noninteger_range_as_index |
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158 || range.all_elements_are_ints ()) |
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159 return set_idx_cache (idx_vector (range)); |
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160 else |
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161 { |
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162 warning_with_id ("Octave:noninteger-range-as-index", |
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163 "non-integer range used as index"); |
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164 |
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165 return octave_value (matrix_value ()).round ().index_vector (); |
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166 } |
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167 } |
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168 } |
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169 |
| 2376 | 170 double |
| 171 octave_range::double_value (bool) const | |
| 172 { | |
| 4102 | 173 double retval = lo_ieee_nan_value (); |
| 2376 | 174 |
| 5275 | 175 octave_idx_type nel = range.nelem (); |
| 2376 | 176 |
| 4455 | 177 if (nel > 0) |
| 178 { | |
| 5781 | 179 gripe_implicit_conversion ("Octave:array-as-scalar", |
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180 "range", "real scalar"); |
| 4455 | 181 |
| 182 retval = range.base (); | |
| 183 } | |
| 2376 | 184 else |
| 185 gripe_invalid_conversion ("range", "real scalar"); | |
| 186 | |
| 187 return retval; | |
| 188 } | |
| 189 | |
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190 float |
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191 octave_range::float_value (bool) const |
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192 { |
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193 float retval = lo_ieee_float_nan_value (); |
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194 |
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195 octave_idx_type nel = range.nelem (); |
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196 |
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197 if (nel > 0) |
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198 { |
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199 gripe_implicit_conversion ("Octave:array-as-scalar", |
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200 "range", "real scalar"); |
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201 |
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202 retval = range.base (); |
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203 } |
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204 else |
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205 gripe_invalid_conversion ("range", "real scalar"); |
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206 |
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207 return retval; |
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208 } |
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209 |
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210 charNDArray |
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211 octave_range::char_array_value (bool) const |
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212 { |
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213 const Matrix matrix = range.matrix_value (); |
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214 charNDArray retval (dims ()); |
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215 |
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216 octave_idx_type nel = numel (); |
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217 |
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218 for (octave_idx_type i = 0; i < nel; i++) |
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219 retval.elem (i) = static_cast<char>(matrix.elem (i)); |
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220 |
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221 return retval; |
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222 } |
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223 |
| 2376 | 224 octave_value |
| 4017 | 225 octave_range::all (int dim) const |
| 2376 | 226 { |
| 5775 | 227 // FIXME -- this is a potential waste of memory. |
| 2436 | 228 |
| 229 Matrix m = range.matrix_value (); | |
| 230 | |
| 4017 | 231 return m.all (dim); |
| 2376 | 232 } |
| 233 | |
| 234 octave_value | |
| 4017 | 235 octave_range::any (int dim) const |
| 2376 | 236 { |
| 5775 | 237 // FIXME -- this is a potential waste of memory. |
| 4017 | 238 |
| 239 Matrix m = range.matrix_value (); | |
| 240 | |
| 241 return m.any (dim); | |
| 2376 | 242 } |
| 243 | |
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244 octave_value |
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245 octave_range::diag (octave_idx_type k) const |
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246 { |
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247 return (k == 0 |
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248 ? octave_value (DiagMatrix (DiagArray2<double> (range.matrix_value ()))) |
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249 : octave_value (range.diag (k))); |
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250 } |
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251 |
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252 |
| 2376 | 253 bool |
| 254 octave_range::is_true (void) const | |
| 255 { | |
| 256 bool retval = false; | |
| 2436 | 257 |
| 4478 | 258 if (range.nelem () != 0) |
| 2436 | 259 { |
| 5775 | 260 // FIXME -- this is a potential waste of memory. |
| 2436 | 261 |
| 262 Matrix m ((range.matrix_value () . all ()) . all ()); | |
| 263 | |
| 264 retval = (m.rows () == 1 && m.columns () == 1 && m (0, 0) != 0.0); | |
| 265 } | |
| 266 | |
| 2376 | 267 return retval; |
| 268 } | |
| 269 | |
| 270 Complex | |
| 271 octave_range::complex_value (bool) const | |
| 272 { | |
| 4102 | 273 double tmp = lo_ieee_nan_value (); |
| 274 | |
| 275 Complex retval (tmp, tmp); | |
| 2376 | 276 |
| 5275 | 277 octave_idx_type nel = range.nelem (); |
| 2376 | 278 |
| 4455 | 279 if (nel > 0) |
| 280 { | |
| 5781 | 281 gripe_implicit_conversion ("Octave:array-as-scalar", |
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282 "range", "complex scalar"); |
| 4455 | 283 |
| 284 retval = range.base (); | |
| 285 } | |
| 2376 | 286 else |
| 287 gripe_invalid_conversion ("range", "complex scalar"); | |
| 288 | |
| 289 return retval; | |
| 290 } | |
| 291 | |
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292 FloatComplex |
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293 octave_range::float_complex_value (bool) const |
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294 { |
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295 float tmp = lo_ieee_float_nan_value (); |
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296 |
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297 FloatComplex retval (tmp, tmp); |
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298 |
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299 octave_idx_type nel = range.nelem (); |
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300 |
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301 if (nel > 0) |
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302 { |
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303 gripe_implicit_conversion ("Octave:array-as-scalar", |
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304 "range", "complex scalar"); |
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305 |
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306 retval = range.base (); |
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307 } |
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308 else |
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309 gripe_invalid_conversion ("range", "complex scalar"); |
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310 |
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311 return retval; |
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312 } |
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313 |
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314 boolNDArray |
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315 octave_range::bool_array_value (bool warn) const |
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316 { |
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317 Matrix m = range.matrix_value (); |
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318 |
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319 if (m.any_element_is_nan ()) |
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320 error ("invalid conversion from NaN to logical"); |
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321 else if (warn && m.any_element_not_one_or_zero ()) |
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322 gripe_logical_conversion (); |
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323 |
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324 return boolNDArray (m); |
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325 } |
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326 |
| 5731 | 327 octave_value |
| 328 octave_range::resize (const dim_vector& dv, bool fill) const | |
| 329 { | |
| 330 NDArray retval = array_value (); | |
| 331 if (fill) | |
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332 retval.resize (dv, NDArray::resize_fill_value ()); |
| 5731 | 333 else |
| 334 retval.resize (dv); | |
| 335 return retval; | |
| 336 } | |
| 337 | |
| 2376 | 338 octave_value |
| 5279 | 339 octave_range::convert_to_str_internal (bool pad, bool force, char type) const |
| 2449 | 340 { |
| 341 octave_value tmp (range.matrix_value ()); | |
| 5279 | 342 return tmp.convert_to_str (pad, force, type); |
| 2449 | 343 } |
| 344 | |
| 2376 | 345 void |
| 3523 | 346 octave_range::print (std::ostream& os, bool pr_as_read_syntax) const |
| 2901 | 347 { |
| 348 print_raw (os, pr_as_read_syntax); | |
| 349 newline (os); | |
| 350 } | |
| 351 | |
| 352 void | |
| 3523 | 353 octave_range::print_raw (std::ostream& os, bool pr_as_read_syntax) const |
| 2901 | 354 { |
| 355 octave_print_internal (os, range, pr_as_read_syntax, | |
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356 current_print_indent_level ()); |
| 2901 | 357 } |
| 358 | |
| 359 bool | |
| 3523 | 360 octave_range::print_name_tag (std::ostream& os, const std::string& name) const |
| 2376 | 361 { |
| 2901 | 362 bool retval = false; |
| 363 | |
| 5275 | 364 octave_idx_type n = range.nelem (); |
| 2901 | 365 |
| 366 indent (os); | |
| 367 | |
| 368 if (n == 0 || n == 1) | |
| 369 os << name << " = "; | |
| 370 else | |
| 371 { | |
| 372 os << name << " ="; | |
| 373 newline (os); | |
| 374 newline (os); | |
| 375 retval = true; | |
| 376 } | |
| 377 | |
| 378 return retval; | |
| 2376 | 379 } |
| 380 | |
| 4687 | 381 // Skip white space and comments on stream IS. |
| 382 | |
| 383 static void | |
| 384 skip_comments (std::istream& is) | |
| 385 { | |
| 386 char c = '\0'; | |
| 387 while (is.get (c)) | |
| 388 { | |
| 389 if (c == ' ' || c == '\t' || c == '\n') | |
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390 ; // Skip whitespace on way to beginning of next line. |
| 4687 | 391 else |
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392 break; |
| 4687 | 393 } |
| 394 | |
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395 skip_until_newline (is, false); |
| 4687 | 396 } |
| 397 | |
| 398 bool | |
| 6974 | 399 octave_range::save_ascii (std::ostream& os) |
| 4687 | 400 { |
| 401 Range r = range_value (); | |
| 402 double base = r.base (); | |
| 403 double limit = r.limit (); | |
| 404 double inc = r.inc (); | |
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405 octave_idx_type len = r.nelem (); |
| 4687 | 406 |
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407 if (inc != 0) |
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408 os << "# base, limit, increment\n"; |
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409 else |
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410 os << "# base, length, increment\n"; |
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411 |
| 4687 | 412 octave_write_double (os, base); |
| 413 os << " "; | |
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414 if (inc != 0) |
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415 octave_write_double (os, limit); |
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416 else |
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417 os << len; |
| 4687 | 418 os << " "; |
| 419 octave_write_double (os, inc); | |
| 420 os << "\n"; | |
| 421 | |
| 422 return true; | |
| 423 } | |
| 424 | |
| 425 bool | |
| 426 octave_range::load_ascii (std::istream& is) | |
| 427 { | |
| 428 // # base, limit, range comment added by save (). | |
| 429 skip_comments (is); | |
| 430 | |
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431 double base, limit, inc; |
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432 is >> base >> limit >> inc; |
| 4687 | 433 |
| 434 if (!is) | |
| 435 { | |
| 436 error ("load: failed to load range constant"); | |
| 437 return false; | |
| 438 } | |
| 439 | |
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440 if (inc != 0) |
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441 range = Range (base, limit, inc); |
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442 else |
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443 range = Range (base, inc, static_cast<octave_idx_type> (limit)); |
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444 |
| 4687 | 445 return true; |
| 446 } | |
| 447 | |
| 448 bool | |
| 449 octave_range::save_binary (std::ostream& os, bool& /* save_as_floats */) | |
| 450 { | |
| 5760 | 451 char tmp = LS_DOUBLE; |
| 452 os.write (reinterpret_cast<char *> (&tmp), 1); | |
| 4687 | 453 Range r = range_value (); |
| 454 double bas = r.base (); | |
| 455 double lim = r.limit (); | |
| 456 double inc = r.inc (); | |
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457 if (inc == 0) |
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458 lim = r.nelem (); |
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459 |
| 5760 | 460 os.write (reinterpret_cast<char *> (&bas), 8); |
| 461 os.write (reinterpret_cast<char *> (&lim), 8); | |
| 462 os.write (reinterpret_cast<char *> (&inc), 8); | |
| 4687 | 463 |
| 464 return true; | |
| 465 } | |
| 466 | |
| 467 bool | |
| 468 octave_range::load_binary (std::istream& is, bool swap, | |
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469 oct_mach_info::float_format /* fmt */) |
| 4687 | 470 { |
| 471 char tmp; | |
| 5760 | 472 if (! is.read (reinterpret_cast<char *> (&tmp), 1)) |
| 4687 | 473 return false; |
| 474 double bas, lim, inc; | |
| 5760 | 475 if (! is.read (reinterpret_cast<char *> (&bas), 8)) |
| 4687 | 476 return false; |
| 477 if (swap) | |
| 4944 | 478 swap_bytes<8> (&bas); |
| 5760 | 479 if (! is.read (reinterpret_cast<char *> (&lim), 8)) |
| 4687 | 480 return false; |
| 481 if (swap) | |
| 4944 | 482 swap_bytes<8> (&lim); |
| 5760 | 483 if (! is.read (reinterpret_cast<char *> (&inc), 8)) |
| 4687 | 484 return false; |
| 485 if (swap) | |
| 4944 | 486 swap_bytes<8> (&inc); |
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487 if (inc != 0) |
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488 range = Range (bas, lim, inc); |
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489 else |
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490 range = Range (bas, inc, static_cast<octave_idx_type> (lim)); |
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491 |
| 4687 | 492 return true; |
| 493 } | |
| 494 | |
| 495 #if defined (HAVE_HDF5) | |
| 4944 | 496 |
| 4687 | 497 // The following subroutines creates an HDF5 representation of the way |
| 498 // we will store Octave range types (triplets of floating-point numbers). | |
| 499 // NUM_TYPE is the HDF5 numeric type to use for storage (e.g. | |
| 500 // H5T_NATIVE_DOUBLE to save as 'double'). Note that any necessary | |
| 501 // conversions are handled automatically by HDF5. | |
| 502 | |
| 503 static hid_t | |
| 504 hdf5_make_range_type (hid_t num_type) | |
| 505 { | |
| 506 hid_t type_id = H5Tcreate (H5T_COMPOUND, sizeof (double) * 3); | |
| 507 | |
| 508 H5Tinsert (type_id, "base", 0 * sizeof (double), num_type); | |
| 509 H5Tinsert (type_id, "limit", 1 * sizeof (double), num_type); | |
| 510 H5Tinsert (type_id, "increment", 2 * sizeof (double), num_type); | |
| 511 | |
| 512 return type_id; | |
| 513 } | |
| 514 | |
| 515 bool | |
| 516 octave_range::save_hdf5 (hid_t loc_id, const char *name, | |
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517 bool /* save_as_floats */) |
| 4687 | 518 { |
| 4792 | 519 hsize_t dimens[3]; |
| 4687 | 520 hid_t space_hid = -1, type_hid = -1, data_hid = -1; |
| 521 bool retval = true; | |
| 522 | |
| 4815 | 523 space_hid = H5Screate_simple (0, dimens, 0); |
| 4687 | 524 if (space_hid < 0) return false; |
| 525 | |
| 526 type_hid = hdf5_make_range_type (H5T_NATIVE_DOUBLE); | |
| 527 if (type_hid < 0) | |
| 528 { | |
| 529 H5Sclose (space_hid); | |
| 530 return false; | |
| 531 } | |
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532 #if HAVE_HDF5_18 |
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533 data_hid = H5Dcreate (loc_id, name, type_hid, space_hid, |
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534 H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT); |
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535 #else |
| 4687 | 536 data_hid = H5Dcreate (loc_id, name, type_hid, space_hid, H5P_DEFAULT); |
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537 #endif |
| 4687 | 538 if (data_hid < 0) |
| 539 { | |
| 540 H5Sclose (space_hid); | |
| 541 H5Tclose (type_hid); | |
| 542 return false; | |
| 543 } | |
| 544 | |
| 545 Range r = range_value (); | |
| 546 double range_vals[3]; | |
| 547 range_vals[0] = r.base (); | |
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548 range_vals[1] = r.inc () != 0 ? r.limit () : r.nelem (); |
| 4687 | 549 range_vals[2] = r.inc (); |
| 550 | |
| 551 retval = H5Dwrite (data_hid, type_hid, H5S_ALL, H5S_ALL, H5P_DEFAULT, | |
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552 range_vals) >= 0; |
| 4687 | 553 |
| 554 H5Dclose (data_hid); | |
| 555 H5Tclose (type_hid); | |
| 556 H5Sclose (space_hid); | |
| 4837 | 557 |
| 4687 | 558 return retval; |
| 559 } | |
| 560 | |
| 561 bool | |
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562 octave_range::load_hdf5 (hid_t loc_id, const char *name) |
| 4687 | 563 { |
| 564 bool retval = false; | |
| 4837 | 565 |
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566 #if HAVE_HDF5_18 |
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567 hid_t data_hid = H5Dopen (loc_id, name, H5P_DEFAULT); |
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568 #else |
| 4687 | 569 hid_t data_hid = H5Dopen (loc_id, name); |
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570 #endif |
| 4687 | 571 hid_t type_hid = H5Dget_type (data_hid); |
| 572 | |
| 573 hid_t range_type = hdf5_make_range_type (H5T_NATIVE_DOUBLE); | |
| 574 | |
| 575 if (! hdf5_types_compatible (type_hid, range_type)) | |
| 576 { | |
| 4837 | 577 H5Tclose (range_type); |
| 4687 | 578 H5Dclose (data_hid); |
| 579 return false; | |
| 580 } | |
| 581 | |
| 582 hid_t space_hid = H5Dget_space (data_hid); | |
| 583 hsize_t rank = H5Sget_simple_extent_ndims (space_hid); | |
| 584 | |
| 585 if (rank != 0) | |
| 586 { | |
| 4837 | 587 H5Tclose (range_type); |
| 4687 | 588 H5Sclose (space_hid); |
| 589 H5Dclose (data_hid); | |
| 590 return false; | |
| 591 } | |
| 592 | |
| 593 double rangevals[3]; | |
| 594 if (H5Dread (data_hid, range_type, H5S_ALL, H5S_ALL, H5P_DEFAULT, | |
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595 rangevals) >= 0) |
| 4687 | 596 { |
| 597 retval = true; | |
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598 if (rangevals[2] != 0) |
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599 range = Range (rangevals[0], rangevals[1], rangevals[2]); |
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600 else |
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601 range = Range (rangevals[0], rangevals[2], |
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602 static_cast<octave_idx_type> (rangevals[1])); |
| 4687 | 603 } |
| 604 | |
| 4837 | 605 H5Tclose (range_type); |
| 4687 | 606 H5Sclose (space_hid); |
| 607 H5Dclose (data_hid); | |
| 4837 | 608 |
| 4687 | 609 return retval; |
| 610 } | |
| 4944 | 611 |
| 4687 | 612 #endif |
| 613 | |
| 5900 | 614 mxArray * |
| 615 octave_range::as_mxArray (void) const | |
| 616 { | |
| 617 mxArray *retval = new mxArray (mxDOUBLE_CLASS, dims (), mxREAL); | |
| 618 | |
| 619 double *pr = static_cast<double *> (retval->get_data ()); | |
| 620 | |
| 6686 | 621 mwSize nel = numel (); |
| 5900 | 622 |
| 623 Matrix m = matrix_value (); | |
| 624 | |
| 625 const double *p = m.data (); | |
| 626 | |
| 6686 | 627 for (mwSize i = 0; i < nel; i++) |
| 5900 | 628 pr[i] = p[i]; |
| 629 | |
| 630 return retval; | |
| 631 } | |
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632 |
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633 DEFUN (allow_noninteger_range_as_index, args, nargout, |
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634 "-*- texinfo -*-\n\ |
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635 @deftypefn {Built-in Function} {@var{val} =} allow_noninteger_range_as_index ()\n\ |
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636 @deftypefnx {Built-in Function} {@var{old_val} =} allow_noninteger_range_as_index (@var{new_val})\n\ |
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637 Query or set the internal variable that controls whether non-integer\n\ |
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638 ranges are allowed as indices. This might be useful for @sc{matlab}\n\ |
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639 compatibility; however, it is still not entirely compatible because\n\ |
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640 @sc{matlab} treats the range expression differently in different contexts.\n\ |
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641 @end deftypefn") |
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642 { |
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643 return SET_INTERNAL_VARIABLE (allow_noninteger_range_as_index); |
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644 } |