Mercurial > octave-nkf
annotate liboctave/Sparse.h @ 13985:43cc49c7abd1
Use thread-safe atomic reference counting (GCC and MSVC).
* configure.ac: New --enable-atomic-refcount argument.
(octave_allocator): Fix USE_OCTAVE_ALLOCATOR variable assignment.
(OCTAVE_CONFIG_INCLUDED): New macro in config.h.
* oct-refcount.h (OCTREFCOUNT_ATOMIC_INCREMENT,
OCTREFCOUNT_ATOMIC_INCREMENT_POST, OCTREFCOUNT_ATOMIC_DECREMENT,
OCTREFCOUNT_ATOMIC_DECREMENT_POST): New macro, defined for MSVC and GCC
when USE_ATOMIC_REFCOUNT is defined.
(octave_refcount:operator++, octave_refcount::operator--): Use them.
(octave_refcount::operator count_type): Cast returned value to volatile.
(octave_refcount::direct): Remove unsafe member.
* Array.h (Array::make_unique): Delete rep if refcount reaches 0.
* Sparse.h (Sparse::make_unique): Delete rep if refcount reaches 0.
* Array.h (Array:~Array, Array::operator=): Delete rep only when refcount is
excatly 0.
* Array.cc (Array::clear): Likewise.
* Sparse.cc (Sparse::~Sparse, Sparse::operator=): Likewise.
* SparseCmplxQR.h (SparseCmplxQR::~SparseCmplxQR, SparseCmplxQR::operator=):
Likewise.
* SparseQR.h (SparseQR::~SparseQR, SparseQR::operator=): Likewise.
* sparse-base-chol.h (sparse_base_chol::~sparse_base_chol,
sparse_base_chol::operator): Likewise.
* dim-vector.h (oct-refcount.h): New included header.
(dim_vector::make_unique, dim_vector::resize): Use OCTREFCOUNT_ATOMIC_DECREMENT
macro and delete rep when refcount reaches 0.
(dim_vector::dim_vector): Use OCTREFCOUNT_ATOMIC_INCREMENT.
(dim_vector::operator=): Use OCTREFCOUNT_ATOMIC_INCREMENT and
OCTREFCOUNT_ATOMIC_DECREMENT.
(dim_vector::~dim_vector): Use OCTREFCOUNT_ATOMIC_DECREMENT.
* oct-mutex.h (oct-refcount.h): New included header.
(octave_base_mutex::count): Use octave_refcount class.
* gl-render.cc (oct-refcount.h): New included header.
* graphics.h.in (oct-refcount.h): Likewise.
(base_property::count, base_graphics_toolkit::count,
base_graphics_object::count, base_graphics_event::count): Use octave_refcount.
(property::~property, property::operator=): Delete rep only when refcountn is
excatly 0.
* oct-map.h (octave_fields::make_unique): Delete rep when refcount reaches 0.
* oct-stream.h (oct-refcount.h): New included header.
(octave_base_stream::count): Use octave_refcount class.
* ov.h (octave_value::make_unique): Delete rep when refcount reaches 0.
* symtab.h (oct-refcount.h): New included header.
(symbol_record_rep::count, fcn_info_rep::count): Use octave_refcount class.
* DLD-FUNCTIONS/urlwrite.cc (oct-refcount.h): New included header.
(curl_handle_rep::count): Use octave_refcount class.
| author | Michael Goffioul <michael.goffioul@gmail.com> |
|---|---|
| date | Sat, 03 Dec 2011 15:19:42 +0000 |
| parents | b646413c3d0e |
| children | 8a566473361e |
| rev | line source |
|---|---|
| 5164 | 1 // Template sparse classes |
| 2 /* | |
| 3 | |
| 11523 | 4 Copyright (C) 2004-2011 David Bateman |
| 5 Copyright (C) 1998-2004 Andy Adler | |
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6 Copyright (C) 2010 VZLU Prague |
| 7016 | 7 |
| 8 This file is part of Octave. | |
| 5164 | 9 |
| 10 Octave is free software; you can redistribute it and/or modify it | |
| 11 under the terms of the GNU General Public License as published by the | |
| 7016 | 12 Free Software Foundation; either version 3 of the License, or (at your |
| 13 option) any later version. | |
| 5164 | 14 |
| 15 Octave is distributed in the hope that it will be useful, but WITHOUT | |
| 16 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 17 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 18 for more details. | |
| 19 | |
| 20 You should have received a copy of the GNU General Public License | |
| 7016 | 21 along with Octave; see the file COPYING. If not, see |
| 22 <http://www.gnu.org/licenses/>. | |
| 5164 | 23 |
| 24 */ | |
| 25 | |
| 26 #if !defined (octave_Sparse_h) | |
| 27 #define octave_Sparse_h 1 | |
| 28 | |
| 29 #include <cassert> | |
| 30 #include <cstddef> | |
| 31 | |
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32 #include <iosfwd> |
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33 #include <algorithm> |
| 5164 | 34 |
| 35 #include "Array.h" | |
| 36 #include "dim-vector.h" | |
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37 #include "lo-error.h" |
| 5164 | 38 #include "lo-utils.h" |
| 39 | |
| 7433 | 40 #include "oct-sort.h" |
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41 #include "oct-mem.h" |
| 7433 | 42 |
| 5164 | 43 class idx_vector; |
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44 class PermMatrix; |
| 5164 | 45 |
| 46 // Two dimensional sparse class. Handles the reference counting for | |
| 47 // all the derived classes. | |
| 48 | |
| 49 template <class T> | |
| 50 class | |
| 51 Sparse | |
| 52 { | |
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53 public: |
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54 |
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55 typedef T element_type; |
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56 |
| 5164 | 57 protected: |
| 58 //-------------------------------------------------------------------- | |
| 59 // The real representation of all Sparse arrays. | |
| 60 //-------------------------------------------------------------------- | |
| 61 | |
| 6108 | 62 class OCTAVE_API SparseRep |
| 5164 | 63 { |
| 64 public: | |
| 65 | |
| 66 T *d; | |
| 5275 | 67 octave_idx_type *r; |
| 68 octave_idx_type *c; | |
| 5604 | 69 octave_idx_type nzmx; |
| 5275 | 70 octave_idx_type nrows; |
| 71 octave_idx_type ncols; | |
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72 octave_refcount<int> count; |
| 5164 | 73 |
| 5604 | 74 SparseRep (void) : d (0), r (0), c (new octave_idx_type [1]), nzmx (0), nrows (0), |
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75 ncols (0), count (1) { c[0] = 0; } |
| 5164 | 76 |
| 5604 | 77 SparseRep (octave_idx_type n) : d (0), r (0), c (new octave_idx_type [n+1]), nzmx (0), nrows (n), |
| 5164 | 78 ncols (n), count (1) |
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79 { |
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80 for (octave_idx_type i = 0; i < n + 1; i++) |
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81 c[i] = 0; |
| 5164 | 82 } |
| 83 | |
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84 SparseRep (octave_idx_type nr, octave_idx_type nc) : d (0), r (0), c (new octave_idx_type [nc+1]), nzmx (0), |
| 5164 | 85 nrows (nr), ncols (nc), count (1) |
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86 { |
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87 for (octave_idx_type i = 0; i < nc + 1; i++) |
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88 c[i] = 0; |
| 5164 | 89 } |
| 90 | |
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91 SparseRep (octave_idx_type nr, octave_idx_type nc, octave_idx_type nz) : d (new T [nz]), |
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92 r (new octave_idx_type [nz]), c (new octave_idx_type [nc+1]), nzmx (nz), nrows (nr), |
| 5164 | 93 ncols (nc), count (1) |
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94 { |
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95 for (octave_idx_type i = 0; i < nc + 1; i++) |
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96 c[i] = 0; |
| 5164 | 97 } |
| 98 | |
| 99 SparseRep (const SparseRep& a) | |
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100 : d (new T [a.nzmx]), r (new octave_idx_type [a.nzmx]), c (new octave_idx_type [a.ncols + 1]), |
| 5604 | 101 nzmx (a.nzmx), nrows (a.nrows), ncols (a.ncols), count (1) |
| 5164 | 102 { |
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103 octave_idx_type nz = a.nnz (); |
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104 copy_or_memcpy (nz, a.d, d); |
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105 copy_or_memcpy (nz, a.r, r); |
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106 copy_or_memcpy (ncols + 1, a.c, c); |
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107 } |
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108 |
| 5164 | 109 ~SparseRep (void) { delete [] d; delete [] r; delete [] c; } |
| 110 | |
| 5604 | 111 octave_idx_type length (void) const { return nzmx; } |
| 5164 | 112 |
| 5604 | 113 octave_idx_type nnz (void) const { return c [ncols]; } |
| 5164 | 114 |
| 5275 | 115 T& elem (octave_idx_type _r, octave_idx_type _c); |
| 5164 | 116 |
| 5275 | 117 T celem (octave_idx_type _r, octave_idx_type _c) const; |
| 5164 | 118 |
| 5275 | 119 T& data (octave_idx_type i) { return d[i]; } |
| 5164 | 120 |
| 5275 | 121 T cdata (octave_idx_type i) const { return d[i]; } |
| 5164 | 122 |
| 5275 | 123 octave_idx_type& ridx (octave_idx_type i) { return r[i]; } |
| 5164 | 124 |
| 5275 | 125 octave_idx_type cridx (octave_idx_type i) const { return r[i]; } |
| 5164 | 126 |
| 5275 | 127 octave_idx_type& cidx (octave_idx_type i) { return c[i]; } |
| 5164 | 128 |
| 5275 | 129 octave_idx_type ccidx (octave_idx_type i) const { return c[i]; } |
| 5164 | 130 |
| 131 void maybe_compress (bool remove_zeros); | |
| 132 | |
| 5275 | 133 void change_length (octave_idx_type nz); |
| 5164 | 134 |
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135 bool indices_ok (void) const; |
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136 |
| 5164 | 137 private: |
| 138 | |
| 139 // No assignment! | |
| 140 | |
| 141 SparseRep& operator = (const SparseRep& a); | |
| 142 }; | |
| 143 | |
| 144 //-------------------------------------------------------------------- | |
| 145 | |
| 146 void make_unique (void) | |
| 147 { | |
| 148 if (rep->count > 1) | |
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149 { |
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150 SparseRep *r = new SparseRep (*rep); |
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151 |
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152 if (--rep->count == 0) |
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153 delete rep; |
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154 |
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155 rep = r; |
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156 } |
| 5164 | 157 } |
| 158 | |
| 159 public: | |
| 160 | |
| 161 // !!! WARNING !!! -- these should be protected, not public. You | |
| 162 // should not access these data members directly! | |
| 163 | |
| 164 typename Sparse<T>::SparseRep *rep; | |
| 165 | |
| 166 dim_vector dimensions; | |
| 167 | |
| 168 private: | |
| 169 | |
| 170 typename Sparse<T>::SparseRep *nil_rep (void) const | |
| 171 { | |
| 172 static typename Sparse<T>::SparseRep *nr | |
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173 = new typename Sparse<T>::SparseRep (); |
| 5164 | 174 |
| 175 nr->count++; | |
| 176 | |
| 177 return nr; | |
| 178 } | |
| 179 | |
| 180 public: | |
| 181 | |
| 182 Sparse (void) | |
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183 : rep (nil_rep ()), dimensions (dim_vector(0,0)) { } |
| 5164 | 184 |
| 5275 | 185 explicit Sparse (octave_idx_type n) |
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186 : rep (new typename Sparse<T>::SparseRep (n)), |
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187 dimensions (dim_vector (n, n)) { } |
| 5164 | 188 |
| 5275 | 189 explicit Sparse (octave_idx_type nr, octave_idx_type nc) |
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190 : rep (new typename Sparse<T>::SparseRep (nr, nc)), |
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191 dimensions (dim_vector (nr, nc)) { } |
| 5164 | 192 |
| 5275 | 193 explicit Sparse (octave_idx_type nr, octave_idx_type nc, T val); |
| 5164 | 194 |
| 5275 | 195 Sparse (const dim_vector& dv, octave_idx_type nz) |
| 5164 | 196 : rep (new typename Sparse<T>::SparseRep (dv(0), dv(1), nz)), |
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197 dimensions (dv) { } |
| 5164 | 198 |
| 5275 | 199 Sparse (octave_idx_type nr, octave_idx_type nc, octave_idx_type nz) |
| 5164 | 200 : rep (new typename Sparse<T>::SparseRep (nr, nc, nz)), |
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201 dimensions (dim_vector (nr, nc)) { } |
| 5164 | 202 |
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203 // Both SparseMatrix and SparseBoolMatrix need this ctor, and this |
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204 // is their only common ancestor. |
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205 explicit Sparse (const PermMatrix& a); |
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206 |
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207 // Type conversion case. Preserves capacity (). |
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208 template <class U> |
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209 Sparse (const Sparse<U>& a) |
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210 : rep (new typename Sparse<T>::SparseRep (a.rep->nrows, a.rep->ncols, a.rep->nzmx)), |
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211 dimensions (a.dimensions) |
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212 { |
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213 octave_idx_type nz = a.nnz (); |
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214 std::copy (a.rep->d, a.rep->d + nz, rep->d); |
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215 copy_or_memcpy (nz, a.rep->r, rep->r); |
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216 copy_or_memcpy (rep->ncols + 1, a.rep->c, rep->c); |
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217 } |
| 5164 | 218 |
| 219 // No type conversion case. | |
| 220 Sparse (const Sparse<T>& a) | |
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221 : rep (a.rep), dimensions (a.dimensions) |
| 5164 | 222 { |
| 223 rep->count++; | |
| 224 } | |
| 225 | |
| 226 public: | |
| 227 | |
| 228 Sparse (const dim_vector& dv); | |
| 229 | |
| 230 Sparse (const Sparse<T>& a, const dim_vector& dv); | |
| 231 | |
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232 Sparse (const Array<T>& a, const idx_vector& r, const idx_vector& c, |
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233 octave_idx_type nr = -1, octave_idx_type nc = -1, |
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234 bool sum_terms = true, octave_idx_type nzm = -1); |
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235 |
| 5164 | 236 // Sparsify a normal matrix |
| 237 Sparse (const Array<T>& a); | |
| 238 | |
| 239 virtual ~Sparse (void); | |
| 240 | |
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241 Sparse<T>& operator = (const Sparse<T>& a); |
| 5164 | 242 |
| 5604 | 243 // Note that nzmax and capacity are the amount of storage for |
| 244 // non-zero elements, while nnz is the actual number of non-zero | |
| 245 // terms. | |
| 246 octave_idx_type nzmax (void) const { return rep->length (); } | |
| 247 octave_idx_type capacity (void) const { return nzmax (); } | |
| 248 octave_idx_type nnz (void) const { return rep->nnz (); } | |
| 5164 | 249 |
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250 // Querying the number of elements (incl. zeros) may overflow the index type, |
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251 // so don't do it unless you really need it. |
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252 octave_idx_type numel (void) const |
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253 { |
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254 return dimensions.safe_numel (); |
| 5164 | 255 } |
| 256 | |
| 5275 | 257 octave_idx_type nelem (void) const { return capacity (); } |
| 258 octave_idx_type length (void) const { return numel (); } | |
| 5164 | 259 |
| 5275 | 260 octave_idx_type dim1 (void) const { return dimensions(0); } |
| 261 octave_idx_type dim2 (void) const { return dimensions(1); } | |
| 5164 | 262 |
| 5275 | 263 octave_idx_type rows (void) const { return dim1 (); } |
| 264 octave_idx_type cols (void) const { return dim2 (); } | |
| 265 octave_idx_type columns (void) const { return dim2 (); } | |
| 5164 | 266 |
| 5275 | 267 octave_idx_type get_row_index (octave_idx_type k) { return ridx (k); } |
| 268 octave_idx_type get_col_index (octave_idx_type k) | |
| 5164 | 269 { |
| 5275 | 270 octave_idx_type ret = 0; |
| 5164 | 271 while (cidx(ret+1) < k) |
| 272 ret++; | |
| 273 return ret; | |
| 274 } | |
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275 |
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276 size_t byte_size (void) const |
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277 { |
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278 return (static_cast<size_t>(cols () + 1) * sizeof (octave_idx_type) |
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279 + static_cast<size_t> (capacity ()) * (sizeof (T) + sizeof (octave_idx_type))); |
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280 } |
| 5164 | 281 |
| 282 dim_vector dims (void) const { return dimensions; } | |
| 283 | |
| 284 Sparse<T> squeeze (void) const { return *this; } | |
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285 |
| 5275 | 286 octave_idx_type compute_index (const Array<octave_idx_type>& ra_idx) const; |
| 5164 | 287 |
| 5275 | 288 T range_error (const char *fcn, octave_idx_type n) const; |
| 289 T& range_error (const char *fcn, octave_idx_type n); | |
| 5164 | 290 |
| 5275 | 291 T range_error (const char *fcn, octave_idx_type i, octave_idx_type j) const; |
| 292 T& range_error (const char *fcn, octave_idx_type i, octave_idx_type j); | |
| 5164 | 293 |
| 5275 | 294 T range_error (const char *fcn, const Array<octave_idx_type>& ra_idx) const; |
| 295 T& range_error (const char *fcn, const Array<octave_idx_type>& ra_idx); | |
| 5164 | 296 |
| 297 // No checking, even for multiple references, ever. | |
| 298 | |
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299 T& xelem (octave_idx_type n) |
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300 { |
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301 octave_idx_type i = n % rows (), j = n / rows(); |
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302 return xelem (i, j); |
| 5164 | 303 } |
| 304 | |
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305 T xelem (octave_idx_type n) const |
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306 { |
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307 octave_idx_type i = n % rows (), j = n / rows(); |
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308 return xelem (i, j); |
| 5164 | 309 } |
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310 |
| 5275 | 311 T& xelem (octave_idx_type i, octave_idx_type j) { return rep->elem (i, j); } |
| 312 T xelem (octave_idx_type i, octave_idx_type j) const { return rep->celem (i, j); } | |
| 5164 | 313 |
| 5275 | 314 T& xelem (const Array<octave_idx_type>& ra_idx) |
| 5164 | 315 { return xelem (compute_index (ra_idx)); } |
| 316 | |
| 5275 | 317 T xelem (const Array<octave_idx_type>& ra_idx) const |
| 5164 | 318 { return xelem (compute_index (ra_idx)); } |
| 319 | |
| 5775 | 320 // FIXME -- would be nice to fix this so that we don't |
| 5164 | 321 // unnecessarily force a copy, but that is not so easy, and I see no |
| 322 // clean way to do it. | |
| 323 | |
| 5275 | 324 T& checkelem (octave_idx_type n) |
| 5164 | 325 { |
| 326 if (n < 0 || n >= numel ()) | |
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327 return range_error ("T& Sparse<T>::checkelem", n); |
| 5164 | 328 else |
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329 { |
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330 make_unique (); |
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331 return xelem (n); |
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332 } |
| 5164 | 333 } |
| 334 | |
| 5275 | 335 T& checkelem (octave_idx_type i, octave_idx_type j) |
| 5164 | 336 { |
| 337 if (i < 0 || j < 0 || i >= dim1 () || j >= dim2 ()) | |
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338 return range_error ("T& Sparse<T>::checkelem", i, j); |
| 5164 | 339 else |
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340 { |
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341 make_unique (); |
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342 return xelem (i, j); |
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343 } |
| 5164 | 344 } |
| 345 | |
| 5275 | 346 T& checkelem (const Array<octave_idx_type>& ra_idx) |
| 5164 | 347 { |
| 5275 | 348 octave_idx_type i = compute_index (ra_idx); |
| 5164 | 349 |
| 350 if (i < 0) | |
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351 return range_error ("T& Sparse<T>::checkelem", ra_idx); |
| 5164 | 352 else |
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353 return elem (i); |
| 5164 | 354 } |
| 355 | |
| 5275 | 356 T& elem (octave_idx_type n) |
| 5164 | 357 { |
| 358 make_unique (); | |
| 359 return xelem (n); | |
| 360 } | |
| 361 | |
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362 T& elem (octave_idx_type i, octave_idx_type j) |
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363 { |
| 5164 | 364 make_unique (); |
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365 return xelem (i, j); |
| 5164 | 366 } |
| 367 | |
| 5275 | 368 T& elem (const Array<octave_idx_type>& ra_idx) |
| 5164 | 369 { return Sparse<T>::elem (compute_index (ra_idx)); } |
| 370 | |
| 371 #if defined (BOUNDS_CHECKING) | |
| 5275 | 372 T& operator () (octave_idx_type n) { return checkelem (n); } |
| 373 T& operator () (octave_idx_type i, octave_idx_type j) { return checkelem (i, j); } | |
| 374 T& operator () (const Array<octave_idx_type>& ra_idx) { return checkelem (ra_idx); } | |
| 5164 | 375 #else |
| 5275 | 376 T& operator () (octave_idx_type n) { return elem (n); } |
| 377 T& operator () (octave_idx_type i, octave_idx_type j) { return elem (i, j); } | |
| 378 T& operator () (const Array<octave_idx_type>& ra_idx) { return elem (ra_idx); } | |
| 5164 | 379 #endif |
| 380 | |
| 5275 | 381 T checkelem (octave_idx_type n) const |
| 5164 | 382 { |
| 383 if (n < 0 || n >= numel ()) | |
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384 return range_error ("T Sparse<T>::checkelem", n); |
| 5164 | 385 else |
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386 return xelem (n); |
| 5164 | 387 } |
| 388 | |
| 5275 | 389 T checkelem (octave_idx_type i, octave_idx_type j) const |
| 5164 | 390 { |
| 391 if (i < 0 || j < 0 || i >= dim1 () || j >= dim2 ()) | |
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392 return range_error ("T Sparse<T>::checkelem", i, j); |
| 5164 | 393 else |
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394 return xelem (i, j); |
| 5164 | 395 } |
| 396 | |
| 5275 | 397 T checkelem (const Array<octave_idx_type>& ra_idx) const |
| 5164 | 398 { |
| 5275 | 399 octave_idx_type i = compute_index (ra_idx); |
| 5164 | 400 |
| 401 if (i < 0) | |
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402 return range_error ("T Sparse<T>::checkelem", ra_idx); |
| 5164 | 403 else |
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404 return Sparse<T>::elem (i); |
| 5164 | 405 } |
| 406 | |
| 5275 | 407 T elem (octave_idx_type n) const { return xelem (n); } |
| 5164 | 408 |
| 5275 | 409 T elem (octave_idx_type i, octave_idx_type j) const { return xelem (i, j); } |
| 5164 | 410 |
| 5275 | 411 T elem (const Array<octave_idx_type>& ra_idx) const |
| 5164 | 412 { return Sparse<T>::elem (compute_index (ra_idx)); } |
| 413 | |
| 414 #if defined (BOUNDS_CHECKING) | |
| 5275 | 415 T operator () (octave_idx_type n) const { return checkelem (n); } |
| 416 T operator () (octave_idx_type i, octave_idx_type j) const { return checkelem (i, j); } | |
| 417 T operator () (const Array<octave_idx_type>& ra_idx) const { return checkelem (ra_idx); } | |
| 5164 | 418 #else |
| 5275 | 419 T operator () (octave_idx_type n) const { return elem (n); } |
| 420 T operator () (octave_idx_type i, octave_idx_type j) const { return elem (i, j); } | |
| 421 T operator () (const Array<octave_idx_type>& ra_idx) const { return elem (ra_idx); } | |
| 5164 | 422 #endif |
| 423 | |
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424 Sparse<T> maybe_compress (bool remove_zeros = false) |
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425 { |
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426 if (remove_zeros) |
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427 make_unique (); // Needs to unshare because elements are removed. |
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428 |
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429 rep->maybe_compress (remove_zeros); |
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430 return (*this); |
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431 } |
| 5164 | 432 |
| 433 Sparse<T> reshape (const dim_vector& new_dims) const; | |
| 434 | |
| 5275 | 435 Sparse<T> permute (const Array<octave_idx_type>& vec, bool inv = false) const; |
| 5164 | 436 |
| 5275 | 437 Sparse<T> ipermute (const Array<octave_idx_type>& vec) const |
| 5164 | 438 { return permute (vec, true); } |
| 439 | |
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440 void resize1 (octave_idx_type n); |
| 5164 | 441 |
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442 void resize (octave_idx_type r, octave_idx_type c); |
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443 |
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444 void resize (const dim_vector& dv); |
| 5164 | 445 |
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446 void change_capacity (octave_idx_type nz) |
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447 { |
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448 if (nz < nnz ()) |
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449 make_unique (); // Unshare now because elements will be truncated. |
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450 rep->change_length (nz); |
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451 } |
| 5164 | 452 |
| 5275 | 453 Sparse<T>& insert (const Sparse<T>& a, octave_idx_type r, octave_idx_type c); |
| 454 Sparse<T>& insert (const Sparse<T>& a, const Array<octave_idx_type>& idx); | |
| 5164 | 455 |
| 456 bool is_square (void) const { return (dim1 () == dim2 ()); } | |
| 457 | |
| 458 bool is_empty (void) const { return (rows () < 1 && cols () < 1); } | |
| 459 | |
| 460 Sparse<T> transpose (void) const; | |
| 461 | |
| 462 T* data (void) { make_unique (); return rep->d; } | |
| 5275 | 463 T& data (octave_idx_type i) { make_unique (); return rep->data (i); } |
| 5164 | 464 T* xdata (void) { return rep->d; } |
| 5275 | 465 T& xdata (octave_idx_type i) { return rep->data (i); } |
| 5164 | 466 |
| 5275 | 467 T data (octave_idx_type i) const { return rep->data (i); } |
| 5900 | 468 // FIXME -- shouldn't this be returning const T*? |
| 5164 | 469 T* data (void) const { return rep->d; } |
| 470 | |
| 5275 | 471 octave_idx_type* ridx (void) { make_unique (); return rep->r; } |
| 472 octave_idx_type& ridx (octave_idx_type i) { make_unique (); return rep->ridx (i); } | |
| 473 octave_idx_type* xridx (void) { return rep->r; } | |
| 474 octave_idx_type& xridx (octave_idx_type i) { return rep->ridx (i); } | |
| 5164 | 475 |
| 5275 | 476 octave_idx_type ridx (octave_idx_type i) const { return rep->cridx (i); } |
| 5900 | 477 // FIXME -- shouldn't this be returning const octave_idx_type*? |
| 5275 | 478 octave_idx_type* ridx (void) const { return rep->r; } |
| 5164 | 479 |
| 5275 | 480 octave_idx_type* cidx (void) { make_unique (); return rep->c; } |
| 481 octave_idx_type& cidx (octave_idx_type i) { make_unique (); return rep->cidx (i); } | |
| 482 octave_idx_type* xcidx (void) { return rep->c; } | |
| 483 octave_idx_type& xcidx (octave_idx_type i) { return rep->cidx (i); } | |
| 5164 | 484 |
| 5275 | 485 octave_idx_type cidx (octave_idx_type i) const { return rep->ccidx (i); } |
| 5900 | 486 // FIXME -- shouldn't this be returning const octave_idx_type*? |
| 5275 | 487 octave_idx_type* cidx (void) const { return rep->c; } |
| 5164 | 488 |
| 5275 | 489 octave_idx_type ndims (void) const { return dimensions.length (); } |
| 5164 | 490 |
|
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491 void delete_elements (const idx_vector& i); |
| 5164 | 492 |
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493 void delete_elements (int dim, const idx_vector& i); |
| 5164 | 494 |
|
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495 void delete_elements (const idx_vector& i, const idx_vector& j); |
| 5164 | 496 |
|
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497 Sparse<T> index (const idx_vector& i, bool resize_ok = false) const; |
| 5164 | 498 |
|
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499 Sparse<T> index (const idx_vector& i, const idx_vector& j, bool resize_ok = false) const; |
| 5164 | 500 |
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501 void assign (const idx_vector& i, const Sparse<T>& rhs); |
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502 |
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503 void assign (const idx_vector& i, const idx_vector& j, const Sparse<T>& rhs); |
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504 |
| 5164 | 505 void print_info (std::ostream& os, const std::string& prefix) const; |
| 506 | |
| 5900 | 507 // Unsafe. These functions exist to support the MEX interface. |
| 508 // You should not use them anywhere else. | |
| 509 void *mex_get_data (void) const { return const_cast<T *> (data ()); } | |
| 510 | |
| 511 octave_idx_type *mex_get_ir (void) const { return const_cast<octave_idx_type *> (ridx ()); } | |
| 512 | |
| 513 octave_idx_type *mex_get_jc (void) const { return const_cast<octave_idx_type *> (cidx ()); } | |
| 7433 | 514 |
|
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515 Sparse<T> sort (octave_idx_type dim = 0, sortmode mode = ASCENDING) const; |
| 7433 | 516 Sparse<T> sort (Array<octave_idx_type> &sidx, octave_idx_type dim = 0, |
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517 sortmode mode = ASCENDING) const; |
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518 |
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519 Sparse<T> diag (octave_idx_type k = 0) const; |
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520 |
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521 // dim = -1 and dim = -2 are special; see Array<T>::cat description. |
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522 static Sparse<T> |
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523 cat (int dim, octave_idx_type n, const Sparse<T> *sparse_list); |
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524 |
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525 Array<T> array_value (void) const; |
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526 |
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527 template <class U, class F> |
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528 Sparse<U> |
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529 map (F fcn) const |
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530 { |
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531 Sparse<U> result; |
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532 U f_zero = fcn (0.); |
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533 |
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534 if (f_zero != 0.) |
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535 { |
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536 octave_idx_type nr = rows (); |
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537 octave_idx_type nc = cols (); |
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538 |
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539 result = Sparse<U> (nr, nc, f_zero); |
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540 |
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541 for (octave_idx_type j = 0; j < nc; j++) |
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542 for (octave_idx_type i = cidx(j); i < cidx (j+1); i++) |
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543 { |
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544 octave_quit (); |
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545 /* Use data instead of elem for better performance. */ |
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546 result.data (ridx (i) + j * nr) = fcn (data(i)); |
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547 } |
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548 |
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549 result.maybe_compress (true); |
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550 } |
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551 else |
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552 { |
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553 octave_idx_type nz = nnz (); |
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554 octave_idx_type nr = rows (); |
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555 octave_idx_type nc = cols (); |
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556 |
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557 result = Sparse<U> (nr, nc, nz); |
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558 octave_idx_type ii = 0; |
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559 result.cidx (ii) = 0; |
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560 |
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561 for (octave_idx_type j = 0; j < nc; j++) |
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562 { |
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563 for (octave_idx_type i = cidx(j); i < cidx (j+1); i++) |
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564 { |
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565 U val = fcn (data (i)); |
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566 if (val != 0.0) |
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567 { |
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568 result.data (ii) = val; |
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569 result.ridx (ii++) = ridx (i); |
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570 } |
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571 octave_quit (); |
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572 } |
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573 result.cidx (j+1) = ii; |
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574 } |
|
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575 |
|
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576 result.maybe_compress (false); |
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577 } |
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578 |
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579 return result; |
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580 } |
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581 |
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582 // Overloads for function references. |
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583 template <class U> |
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584 Sparse<U> |
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585 map (U (&fcn) (T)) const |
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586 { return map<U, U (&) (T)> (fcn); } |
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587 |
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588 template <class U> |
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589 Sparse<U> |
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590 map (U (&fcn) (const T&)) const |
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591 { return map<U, U (&) (const T&)> (fcn); } |
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592 |
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593 bool indices_ok (void) const { return rep->indices_ok (); } |
| 5164 | 594 }; |
| 595 | |
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596 template<typename T> |
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597 std::istream& |
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598 read_sparse_matrix (std::istream& is, Sparse<T>& a, |
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599 T (*read_fcn) (std::istream&)) |
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600 { |
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601 octave_idx_type nr = a.rows (); |
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602 octave_idx_type nc = a.cols (); |
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603 octave_idx_type nz = a.nzmax (); |
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604 |
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605 if (nr > 0 && nc > 0) |
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606 { |
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607 octave_idx_type itmp; |
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608 octave_idx_type jtmp; |
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609 octave_idx_type iold = 0; |
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610 octave_idx_type jold = 0; |
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611 octave_idx_type ii = 0; |
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612 T tmp; |
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613 |
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614 a.cidx (0) = 0; |
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615 for (octave_idx_type i = 0; i < nz; i++) |
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616 { |
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617 itmp = 0; jtmp = 0; |
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618 is >> itmp; |
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changeset
|
619 itmp--; |
|
9469
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parents:
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diff
changeset
|
620 |
|
10312
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parents:
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diff
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|
621 is >> jtmp; |
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10158
diff
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|
622 jtmp--; |
|
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parents:
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diff
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623 |
|
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624 if (itmp < 0 || itmp >= nr) |
|
cbc402e64d83
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John W. Eaton <jwe@octave.org>
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|
625 { |
|
cbc402e64d83
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changeset
|
626 (*current_liboctave_error_handler) |
|
cbc402e64d83
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diff
changeset
|
627 ("invalid sparse matrix: row index = %d out of range", |
|
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diff
changeset
|
628 itmp + 1); |
|
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John W. Eaton <jwe@octave.org>
parents:
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diff
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|
629 is.setstate (std::ios::failbit); |
|
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untabify liboctave header files
John W. Eaton <jwe@octave.org>
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630 goto done; |
|
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|
631 } |
|
9469
c6edba80dfae
sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
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|
632 |
|
10312
cbc402e64d83
untabify liboctave header files
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diff
changeset
|
633 if (jtmp < 0 || jtmp >= nc) |
|
cbc402e64d83
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diff
changeset
|
634 { |
|
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parents:
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diff
changeset
|
635 (*current_liboctave_error_handler) |
|
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parents:
10158
diff
changeset
|
636 ("invalid sparse matrix: column index = %d out of range", |
|
cbc402e64d83
untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
637 jtmp + 1); |
|
cbc402e64d83
untabify liboctave header files
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parents:
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diff
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|
638 is.setstate (std::ios::failbit); |
|
cbc402e64d83
untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
639 goto done; |
|
cbc402e64d83
untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
640 } |
|
9469
c6edba80dfae
sanity checks for loading sparse matrices
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parents:
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diff
changeset
|
641 |
|
10312
cbc402e64d83
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diff
changeset
|
642 if (jtmp < jold) |
|
cbc402e64d83
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John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
643 { |
|
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parents:
10158
diff
changeset
|
644 (*current_liboctave_error_handler) |
|
cbc402e64d83
untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
645 ("invalid sparse matrix: column indices must appear in ascending order"); |
|
cbc402e64d83
untabify liboctave header files
John W. Eaton <jwe@octave.org>
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646 is.setstate (std::ios::failbit); |
|
cbc402e64d83
untabify liboctave header files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
647 goto done; |
|
cbc402e64d83
untabify liboctave header files
John W. Eaton <jwe@octave.org>
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10158
diff
changeset
|
648 } |
|
9829
8fd88cc36fa4
fix loading sparse matrices
Jaroslav Hajek <highegg@gmail.com>
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diff
changeset
|
649 else if (jtmp > jold) |
|
8fd88cc36fa4
fix loading sparse matrices
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diff
changeset
|
650 { |
|
8fd88cc36fa4
fix loading sparse matrices
Jaroslav Hajek <highegg@gmail.com>
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diff
changeset
|
651 for (octave_idx_type j = jold; j < jtmp; j++) |
|
8fd88cc36fa4
fix loading sparse matrices
Jaroslav Hajek <highegg@gmail.com>
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diff
changeset
|
652 a.cidx(j+1) = ii; |
|
8fd88cc36fa4
fix loading sparse matrices
Jaroslav Hajek <highegg@gmail.com>
parents:
9812
diff
changeset
|
653 } |
|
8fd88cc36fa4
fix loading sparse matrices
Jaroslav Hajek <highegg@gmail.com>
parents:
9812
diff
changeset
|
654 else if (itmp < iold) |
|
10312
cbc402e64d83
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John W. Eaton <jwe@octave.org>
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diff
changeset
|
655 { |
|
cbc402e64d83
untabify liboctave header files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
656 (*current_liboctave_error_handler) |
|
cbc402e64d83
untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
657 ("invalid sparse matrix: row indices must appear in ascending order in each column"); |
|
cbc402e64d83
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John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
658 is.setstate (std::ios::failbit); |
|
cbc402e64d83
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John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
659 goto done; |
|
cbc402e64d83
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John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
660 } |
|
9829
8fd88cc36fa4
fix loading sparse matrices
Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
changeset
|
661 |
|
10312
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untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents:
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changeset
|
662 iold = itmp; |
|
9829
8fd88cc36fa4
fix loading sparse matrices
Jaroslav Hajek <highegg@gmail.com>
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diff
changeset
|
663 jold = jtmp; |
|
8fd88cc36fa4
fix loading sparse matrices
Jaroslav Hajek <highegg@gmail.com>
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diff
changeset
|
664 |
|
10312
cbc402e64d83
untabify liboctave header files
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diff
changeset
|
665 tmp = read_fcn (is); |
|
11586
12df7854fa7c
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John W. Eaton <jwe@octave.org>
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diff
changeset
|
666 |
|
10312
cbc402e64d83
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parents:
10158
diff
changeset
|
667 if (is) |
|
cbc402e64d83
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John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
668 { |
|
cbc402e64d83
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John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
669 a.data (ii) = tmp; |
|
cbc402e64d83
untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
670 a.ridx (ii++) = itmp; |
|
cbc402e64d83
untabify liboctave header files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
671 } |
|
cbc402e64d83
untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
672 else |
|
cbc402e64d83
untabify liboctave header files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
673 goto done; |
|
cbc402e64d83
untabify liboctave header files
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
674 } |
|
9469
c6edba80dfae
sanity checks for loading sparse matrices
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parents:
8950
diff
changeset
|
675 |
|
c6edba80dfae
sanity checks for loading sparse matrices
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parents:
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diff
changeset
|
676 for (octave_idx_type j = jold; j < nc; j++) |
|
10312
cbc402e64d83
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parents:
10158
diff
changeset
|
677 a.cidx(j+1) = ii; |
|
9469
c6edba80dfae
sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents:
8950
diff
changeset
|
678 } |
|
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
679 |
|
9469
c6edba80dfae
sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents:
8950
diff
changeset
|
680 done: |
|
c6edba80dfae
sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents:
8950
diff
changeset
|
681 |
|
c6edba80dfae
sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
682 return is; |
|
c6edba80dfae
sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents:
8950
diff
changeset
|
683 } |
|
c6edba80dfae
sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents:
8950
diff
changeset
|
684 |
| 5164 | 685 #endif |