Mercurial > hg > octave-nkf
annotate src/ov-scalar.cc @ 9835:1bb1ed717d2f
implement built-in erfinv
| author | Jaroslav Hajek <highegg@gmail.com> |
|---|---|
| date | Thu, 19 Nov 2009 10:30:57 +0100 |
| parents | 8fa32b527d9a |
| children | b3089dba88bf |
| 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 |
| 4944 | 30 #include "data-conv.h" |
| 31 #include "mach-info.h" | |
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32 #include "lo-specfun.h" |
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33 #include "lo-mappers.h" |
| 4944 | 34 |
| 2376 | 35 #include "defun.h" |
| 36 #include "gripes.h" | |
| 37 #include "oct-obj.h" | |
| 4944 | 38 #include "oct-stream.h" |
| 2376 | 39 #include "ov-scalar.h" |
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40 #include "ov-float.h" |
| 3223 | 41 #include "ov-base.h" |
| 42 #include "ov-base-scalar.h" | |
| 43 #include "ov-base-scalar.cc" | |
| 2423 | 44 #include "ov-re-mat.h" |
| 2376 | 45 #include "ov-typeinfo.h" |
| 46 #include "pr-output.h" | |
| 47 #include "xdiv.h" | |
| 48 #include "xpow.h" | |
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49 #include "ops.h" |
| 2376 | 50 |
| 4687 | 51 #include "ls-oct-ascii.h" |
| 52 #include "ls-hdf5.h" | |
| 53 | |
| 3223 | 54 template class octave_base_scalar<double>; |
| 55 | |
| 3219 | 56 DEFINE_OCTAVE_ALLOCATOR (octave_scalar); |
| 2376 | 57 |
| 4612 | 58 DEFINE_OV_TYPEID_FUNCTIONS_AND_DATA (octave_scalar, "scalar", "double"); |
| 2376 | 59 |
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60 static octave_base_value * |
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61 default_numeric_demotion_function (const octave_base_value& a) |
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62 { |
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63 CAST_CONV_ARG (const octave_scalar&); |
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64 |
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65 return new octave_float_scalar (v.float_value ()); |
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66 } |
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67 |
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68 octave_base_value::type_conv_info |
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69 octave_scalar::numeric_demotion_function (void) const |
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70 { |
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71 return octave_base_value::type_conv_info(default_numeric_demotion_function, |
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72 octave_float_scalar::static_type_id ()); |
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73 } |
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74 |
| 2376 | 75 octave_value |
| 5885 | 76 octave_scalar::do_index_op (const octave_value_list& idx, bool resize_ok) |
| 2376 | 77 { |
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78 // FIXME -- this doesn't solve the problem of |
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79 // |
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80 // a = 1; a([1,1], [1,1], [1,1]) |
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81 // |
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82 // and similar constructions. Hmm... |
| 2376 | 83 |
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84 // FIXME -- using this constructor avoids narrowing the |
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85 // 1x1 matrix back to a scalar value. Need a better solution |
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86 // to this problem. |
| 2376 | 87 |
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88 octave_value tmp (new octave_matrix (matrix_value ())); |
| 2423 | 89 |
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90 return tmp.do_index_op (idx, resize_ok); |
| 2376 | 91 } |
| 92 | |
| 5731 | 93 octave_value |
| 94 octave_scalar::resize (const dim_vector& dv, bool fill) const | |
| 95 { | |
| 96 if (fill) | |
| 97 { | |
| 98 NDArray retval (dv, NDArray::resize_fill_value()); | |
| 99 | |
| 100 if (dv.numel ()) | |
| 101 retval(0) = scalar; | |
| 102 | |
| 103 return retval; | |
| 104 } | |
| 105 else | |
| 106 { | |
| 107 NDArray retval (dv); | |
| 108 | |
| 109 if (dv.numel ()) | |
| 110 retval(0) = scalar; | |
| 111 | |
| 112 return retval; | |
| 113 } | |
| 114 } | |
| 115 | |
| 2376 | 116 octave_value |
| 5279 | 117 octave_scalar::convert_to_str_internal (bool, bool, char type) const |
| 2376 | 118 { |
| 119 octave_value retval; | |
| 120 | |
| 121 if (xisnan (scalar)) | |
| 122 ::error ("invalid conversion from NaN to character"); | |
| 123 else | |
| 124 { | |
| 4100 | 125 int ival = NINT (scalar); |
| 126 | |
| 127 if (ival < 0 || ival > UCHAR_MAX) | |
| 128 { | |
| 5775 | 129 // FIXME -- is there something better we could do? |
| 4100 | 130 |
| 131 ival = 0; | |
| 132 | |
| 133 ::warning ("range error for conversion to character value"); | |
| 134 } | |
| 135 | |
| 5279 | 136 retval = octave_value (std::string (1, static_cast<char> (ival)), type); |
| 2376 | 137 } |
| 138 | |
| 139 return retval; | |
| 140 } | |
| 141 | |
| 4687 | 142 bool |
| 6974 | 143 octave_scalar::save_ascii (std::ostream& os) |
| 4687 | 144 { |
| 145 double d = double_value (); | |
| 146 | |
| 5958 | 147 octave_write_double (os, d); |
| 148 | |
| 149 os << "\n"; | |
| 4687 | 150 |
| 151 return true; | |
| 152 } | |
| 153 | |
| 154 bool | |
| 155 octave_scalar::load_ascii (std::istream& is) | |
| 156 { | |
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157 scalar = octave_read_value<double> (is); |
| 4687 | 158 if (!is) |
| 159 { | |
| 160 error ("load: failed to load scalar constant"); | |
| 161 return false; | |
| 162 } | |
| 163 | |
| 164 return true; | |
| 165 } | |
| 166 | |
| 167 bool | |
| 168 octave_scalar::save_binary (std::ostream& os, bool& /* save_as_floats */) | |
| 169 { | |
| 5760 | 170 char tmp = LS_DOUBLE; |
| 171 os.write (reinterpret_cast<char *> (&tmp), 1); | |
| 4687 | 172 double dtmp = double_value (); |
| 5760 | 173 os.write (reinterpret_cast<char *> (&dtmp), 8); |
| 4687 | 174 |
| 175 return true; | |
| 176 } | |
| 177 | |
| 178 bool | |
| 179 octave_scalar::load_binary (std::istream& is, bool swap, | |
| 4815 | 180 oct_mach_info::float_format fmt) |
| 4687 | 181 { |
| 182 char tmp; | |
| 5760 | 183 if (! is.read (reinterpret_cast<char *> (&tmp), 1)) |
| 4687 | 184 return false; |
| 185 | |
| 186 double dtmp; | |
| 5760 | 187 read_doubles (is, &dtmp, static_cast<save_type> (tmp), 1, swap, fmt); |
| 4687 | 188 if (error_state || ! is) |
| 189 return false; | |
| 190 | |
| 191 scalar = dtmp; | |
| 192 return true; | |
| 193 } | |
| 194 | |
| 195 #if defined (HAVE_HDF5) | |
| 4944 | 196 |
| 4687 | 197 bool |
| 198 octave_scalar::save_hdf5 (hid_t loc_id, const char *name, | |
| 199 bool /* save_as_floats */) | |
| 200 { | |
| 201 hsize_t dimens[3]; | |
| 202 hid_t space_hid = -1, data_hid = -1; | |
| 203 bool retval = true; | |
| 204 | |
| 4815 | 205 space_hid = H5Screate_simple (0, dimens, 0); |
| 4687 | 206 if (space_hid < 0) return false; |
| 207 | |
| 208 data_hid = H5Dcreate (loc_id, name, H5T_NATIVE_DOUBLE, space_hid, | |
| 209 H5P_DEFAULT); | |
| 210 if (data_hid < 0) | |
| 211 { | |
| 212 H5Sclose (space_hid); | |
| 213 return false; | |
| 214 } | |
| 215 | |
| 216 double tmp = double_value (); | |
| 217 retval = H5Dwrite (data_hid, H5T_NATIVE_DOUBLE, H5S_ALL, H5S_ALL, | |
| 4815 | 218 H5P_DEFAULT, &tmp) >= 0; |
| 4687 | 219 |
| 220 H5Dclose (data_hid); | |
| 221 H5Sclose (space_hid); | |
| 4837 | 222 |
| 4687 | 223 return retval; |
| 224 } | |
| 225 | |
| 226 bool | |
| 227 octave_scalar::load_hdf5 (hid_t loc_id, const char *name, | |
| 228 bool /* have_h5giterate_bug */) | |
| 229 { | |
| 230 hid_t data_hid = H5Dopen (loc_id, name); | |
| 231 hid_t space_id = H5Dget_space (data_hid); | |
| 232 | |
| 233 hsize_t rank = H5Sget_simple_extent_ndims (space_id); | |
| 234 | |
| 235 if (rank != 0) | |
| 236 { | |
| 237 H5Dclose (data_hid); | |
| 238 return false; | |
| 239 } | |
| 240 | |
| 241 double dtmp; | |
| 242 if (H5Dread (data_hid, H5T_NATIVE_DOUBLE, H5S_ALL, H5S_ALL, | |
| 4815 | 243 H5P_DEFAULT, &dtmp) < 0) |
| 4687 | 244 { |
| 245 H5Dclose (data_hid); | |
| 246 return false; | |
| 247 } | |
| 248 | |
| 249 scalar = dtmp; | |
| 4837 | 250 |
| 4687 | 251 H5Dclose (data_hid); |
| 4837 | 252 |
| 4687 | 253 return true; |
| 254 } | |
| 4944 | 255 |
| 4687 | 256 #endif |
| 257 | |
| 5900 | 258 mxArray * |
| 259 octave_scalar::as_mxArray (void) const | |
| 260 { | |
| 261 mxArray *retval = new mxArray (mxDOUBLE_CLASS, 1, 1, mxREAL); | |
| 262 | |
| 263 double *pr = static_cast<double *> (retval->get_data ()); | |
| 264 | |
| 265 pr[0] = scalar; | |
| 266 | |
| 267 return retval; | |
| 268 } | |
| 269 | |
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270 octave_value |
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271 octave_scalar::map (unary_mapper_t umap) const |
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272 { |
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273 switch (umap) |
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274 { |
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275 case umap_imag: |
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276 return 0.0; |
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277 |
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278 case umap_real: |
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279 case umap_conj: |
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280 return scalar; |
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281 |
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282 #define SCALAR_MAPPER(UMAP, FCN) \ |
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283 case umap_ ## UMAP: \ |
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284 return octave_value (FCN (scalar)) |
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285 |
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286 SCALAR_MAPPER (abs, ::fabs); |
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287 SCALAR_MAPPER (acos, rc_acos); |
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288 SCALAR_MAPPER (acosh, rc_acosh); |
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289 SCALAR_MAPPER (angle, ::arg); |
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290 SCALAR_MAPPER (arg, ::arg); |
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291 SCALAR_MAPPER (asin, rc_asin); |
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292 SCALAR_MAPPER (asinh, ::asinh); |
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293 SCALAR_MAPPER (atan, ::atan); |
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294 SCALAR_MAPPER (atanh, rc_atanh); |
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295 SCALAR_MAPPER (erf, ::erf); |
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296 SCALAR_MAPPER (erfinv, ::erfinv); |
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297 SCALAR_MAPPER (erfc, ::erfc); |
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298 SCALAR_MAPPER (gamma, xgamma); |
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299 SCALAR_MAPPER (lgamma, rc_lgamma); |
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300 SCALAR_MAPPER (ceil, ::ceil); |
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301 SCALAR_MAPPER (cos, ::cos); |
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302 SCALAR_MAPPER (cosh, ::cosh); |
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303 SCALAR_MAPPER (exp, ::exp); |
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304 SCALAR_MAPPER (expm1, ::expm1); |
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305 SCALAR_MAPPER (fix, ::fix); |
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306 SCALAR_MAPPER (floor, ::floor); |
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307 SCALAR_MAPPER (log, rc_log); |
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308 SCALAR_MAPPER (log2, rc_log2); |
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309 SCALAR_MAPPER (log10, rc_log10); |
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310 SCALAR_MAPPER (log1p, rc_log1p); |
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311 SCALAR_MAPPER (round, xround); |
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312 SCALAR_MAPPER (roundb, xroundb); |
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313 SCALAR_MAPPER (signum, ::signum); |
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314 SCALAR_MAPPER (sin, ::sin); |
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315 SCALAR_MAPPER (sinh, ::sinh); |
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316 SCALAR_MAPPER (sqrt, rc_sqrt); |
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317 SCALAR_MAPPER (tan, ::tan); |
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318 SCALAR_MAPPER (tanh, ::tanh); |
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319 SCALAR_MAPPER (finite, xfinite); |
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320 SCALAR_MAPPER (isinf, xisinf); |
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321 SCALAR_MAPPER (isna, octave_is_NA); |
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322 SCALAR_MAPPER (isnan, xisnan); |
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323 |
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324 default: |
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325 if (umap >= umap_xisalnum && umap <= umap_xtoupper) |
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326 { |
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327 octave_value str_conv = convert_to_str (true, true); |
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328 return error_state ? octave_value () : str_conv.map (umap); |
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329 } |
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330 else |
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331 return octave_base_value::map (umap); |
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332 } |
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333 } |
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334 |
| 2376 | 335 /* |
| 336 ;;; Local Variables: *** | |
| 337 ;;; mode: C++ *** | |
| 338 ;;; End: *** | |
| 339 */ |