TensorIndexList.h
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1 // This file is part of Eigen, a lightweight C++ template library
2 // for linear algebra.
3 //
4 // Copyright (C) 2014 Benoit Steiner <benoit.steiner.goog@gmail.com>
5 //
6 // This Source Code Form is subject to the terms of the Mozilla
7 // Public License v. 2.0. If a copy of the MPL was not distributed
8 // with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
9 
10 #ifndef EIGEN_CXX11_TENSOR_TENSOR_INDEX_LIST_H
11 #define EIGEN_CXX11_TENSOR_TENSOR_INDEX_LIST_H
12 
13 
14 #if EIGEN_HAS_CONSTEXPR && EIGEN_HAS_VARIADIC_TEMPLATES
15 
16 #define EIGEN_HAS_INDEX_LIST
17 
18 namespace Eigen {
19 
40 template <Index n>
41 struct type2index {
42  static const Index value = n;
43  EIGEN_DEVICE_FUNC constexpr operator Index() const { return n; }
44  EIGEN_DEVICE_FUNC void set(Index val) {
45  eigen_assert(val == n);
46  }
47 };
48 
49 // This can be used with IndexPairList to get compile-time constant pairs,
50 // such as IndexPairList<type2indexpair<1,2>, type2indexpair<3,4>>().
51 template <Index f, Index s>
52 struct type2indexpair {
53  static const Index first = f;
54  static const Index second = s;
55 
56  constexpr EIGEN_DEVICE_FUNC operator IndexPair<Index>() const {
57  return IndexPair<Index>(f, s);
58  }
59 
60  EIGEN_DEVICE_FUNC void set(const IndexPair<Index>& val) {
61  eigen_assert(val.first == f);
62  eigen_assert(val.second == s);
63  }
64 };
65 
66 
67 template<Index n> struct NumTraits<type2index<n> >
68 {
69  typedef Index Real;
70  enum {
71  IsComplex = 0,
72  RequireInitialization = false,
73  ReadCost = 1,
74  AddCost = 1,
75  MulCost = 1
76  };
77 
79  EIGEN_DEVICE_FUNC static EIGEN_CONSTEXPR EIGEN_STRONG_INLINE Real dummy_precision() { return 0; }
80  EIGEN_DEVICE_FUNC static EIGEN_CONSTEXPR EIGEN_STRONG_INLINE Real highest() { return n; }
81  EIGEN_DEVICE_FUNC static EIGEN_CONSTEXPR EIGEN_STRONG_INLINE Real lowest() { return n; }
82 };
83 
84 namespace internal {
85 template <typename T>
86 EIGEN_DEVICE_FUNC void update_value(T& val, Index new_val) {
87  val = internal::convert_index<T>(new_val);
88 }
89 template <Index n>
90 EIGEN_DEVICE_FUNC void update_value(type2index<n>& val, Index new_val) {
91  val.set(new_val);
92 }
93 
94 template <typename T>
95 EIGEN_DEVICE_FUNC void update_value(T& val, IndexPair<Index> new_val) {
96  val = new_val;
97 }
98 template <Index f, Index s>
99 EIGEN_DEVICE_FUNC void update_value(type2indexpair<f, s>& val, IndexPair<Index> new_val) {
100  val.set(new_val);
101 }
102 
103 
104 template <typename T>
105 struct is_compile_time_constant {
106  static constexpr bool value = false;
107 };
108 
109 template <Index idx>
110 struct is_compile_time_constant<type2index<idx> > {
111  static constexpr bool value = true;
112 };
113 template <Index idx>
114 struct is_compile_time_constant<const type2index<idx> > {
115  static constexpr bool value = true;
116 };
117 template <Index idx>
118 struct is_compile_time_constant<type2index<idx>& > {
119  static constexpr bool value = true;
120 };
121 template <Index idx>
122 struct is_compile_time_constant<const type2index<idx>& > {
123  static constexpr bool value = true;
124 };
125 
126 template <Index f, Index s>
127 struct is_compile_time_constant<type2indexpair<f, s> > {
128  static constexpr bool value = true;
129 };
130 template <Index f, Index s>
131 struct is_compile_time_constant<const type2indexpair<f, s> > {
132  static constexpr bool value = true;
133 };
134 template <Index f, Index s>
135 struct is_compile_time_constant<type2indexpair<f, s>& > {
136  static constexpr bool value = true;
137 };
138 template <Index f, Index s>
139 struct is_compile_time_constant<const type2indexpair<f, s>& > {
140  static constexpr bool value = true;
141 };
142 
143 
144 template<typename... T>
145 struct IndexTuple;
146 
147 template<typename T, typename... O>
148 struct IndexTuple<T, O...> {
149  EIGEN_DEVICE_FUNC constexpr IndexTuple() : head(), others() { }
150  EIGEN_DEVICE_FUNC constexpr IndexTuple(const T& v, const O... o) : head(v), others(o...) { }
151 
152  constexpr static int count = 1 + sizeof...(O);
153  T head;
154  IndexTuple<O...> others;
155  typedef T Head;
156  typedef IndexTuple<O...> Other;
157 };
158 
159 template<typename T>
160  struct IndexTuple<T> {
161  EIGEN_DEVICE_FUNC constexpr IndexTuple() : head() { }
162  EIGEN_DEVICE_FUNC constexpr IndexTuple(const T& v) : head(v) { }
163 
164  constexpr static int count = 1;
165  T head;
166  typedef T Head;
167 };
168 
169 
170 template<int N, typename... T>
171 struct IndexTupleExtractor;
172 
173 template<int N, typename T, typename... O>
174 struct IndexTupleExtractor<N, T, O...> {
175 
176  typedef typename IndexTupleExtractor<N-1, O...>::ValType ValType;
177 
178  EIGEN_DEVICE_FUNC static constexpr ValType& get_val(IndexTuple<T, O...>& val) {
179  return IndexTupleExtractor<N-1, O...>::get_val(val.others);
180  }
181 
182  EIGEN_DEVICE_FUNC static constexpr const ValType& get_val(const IndexTuple<T, O...>& val) {
183  return IndexTupleExtractor<N-1, O...>::get_val(val.others);
184  }
185  template <typename V>
186  EIGEN_DEVICE_FUNC static void set_val(IndexTuple<T, O...>& val, V& new_val) {
187  IndexTupleExtractor<N-1, O...>::set_val(val.others, new_val);
188  }
189 
190 };
191 
192 template<typename T, typename... O>
193  struct IndexTupleExtractor<0, T, O...> {
194 
195  typedef T ValType;
196 
197  EIGEN_DEVICE_FUNC static constexpr ValType& get_val(IndexTuple<T, O...>& val) {
198  return val.head;
199  }
200  EIGEN_DEVICE_FUNC static constexpr const ValType& get_val(const IndexTuple<T, O...>& val) {
201  return val.head;
202  }
203  template <typename V>
204  EIGEN_DEVICE_FUNC static void set_val(IndexTuple<T, O...>& val, V& new_val) {
205  val.head = new_val;
206  }
207 };
208 
209 
210 
211 template <int N, typename T, typename... O>
212 EIGEN_DEVICE_FUNC constexpr typename IndexTupleExtractor<N, T, O...>::ValType& array_get(IndexTuple<T, O...>& tuple) {
213  return IndexTupleExtractor<N, T, O...>::get_val(tuple);
214 }
215 template <int N, typename T, typename... O>
216 EIGEN_DEVICE_FUNC constexpr const typename IndexTupleExtractor<N, T, O...>::ValType& array_get(const IndexTuple<T, O...>& tuple) {
217  return IndexTupleExtractor<N, T, O...>::get_val(tuple);
218 }
219 template <typename T, typename... O>
220  struct array_size<IndexTuple<T, O...> > {
221  static const size_t value = IndexTuple<T, O...>::count;
222 };
223 template <typename T, typename... O>
224  struct array_size<const IndexTuple<T, O...> > {
225  static const size_t value = IndexTuple<T, O...>::count;
226 };
227 
228 
229 
230 
231 template <Index Idx, typename ValueT>
232 struct tuple_coeff {
233  template <typename... T>
234  EIGEN_DEVICE_FUNC static constexpr ValueT get(const Index i, const IndexTuple<T...>& t) {
235  // return array_get<Idx>(t) * (i == Idx) + tuple_coeff<Idx-1>::get(i, t) * (i != Idx);
236  return (i == Idx ? array_get<Idx>(t) : tuple_coeff<Idx-1, ValueT>::get(i, t));
237  }
238  template <typename... T>
239  EIGEN_DEVICE_FUNC static void set(const Index i, IndexTuple<T...>& t, const ValueT& value) {
240  if (i == Idx) {
241  update_value(array_get<Idx>(t), value);
242  } else {
244  }
245  }
246 
247  template <typename... T>
248  EIGEN_DEVICE_FUNC static constexpr bool value_known_statically(const Index i, const IndexTuple<T...>& t) {
249  return ((i == Idx) & is_compile_time_constant<typename IndexTupleExtractor<Idx, T...>::ValType>::value) ||
250  tuple_coeff<Idx-1, ValueT>::value_known_statically(i, t);
251  }
252 
253  template <typename... T>
254  EIGEN_DEVICE_FUNC static constexpr bool values_up_to_known_statically(const IndexTuple<T...>& t) {
255  return is_compile_time_constant<typename IndexTupleExtractor<Idx, T...>::ValType>::value &&
256  tuple_coeff<Idx-1, ValueT>::values_up_to_known_statically(t);
257  }
258 
259  template <typename... T>
260  EIGEN_DEVICE_FUNC static constexpr bool values_up_to_statically_known_to_increase(const IndexTuple<T...>& t) {
261  return is_compile_time_constant<typename IndexTupleExtractor<Idx, T...>::ValType>::value &&
262  is_compile_time_constant<typename IndexTupleExtractor<Idx, T...>::ValType>::value &&
263  array_get<Idx>(t) > array_get<Idx-1>(t) &&
264  tuple_coeff<Idx-1, ValueT>::values_up_to_statically_known_to_increase(t);
265  }
266 };
267 
268 template <typename ValueT>
269 struct tuple_coeff<0, ValueT> {
270  template <typename... T>
271  EIGEN_DEVICE_FUNC static constexpr ValueT get(const Index /*i*/, const IndexTuple<T...>& t) {
272  // eigen_assert (i == 0); // gcc fails to compile assertions in constexpr
273  return array_get<0>(t)/* * (i == 0)*/;
274  }
275  template <typename... T>
276  EIGEN_DEVICE_FUNC static void set(const Index i, IndexTuple<T...>& t, const ValueT value) {
277  eigen_assert (i == 0);
278  update_value(array_get<0>(t), value);
279  }
280  template <typename... T>
281  EIGEN_DEVICE_FUNC static constexpr bool value_known_statically(const Index i, const IndexTuple<T...>&) {
282  return is_compile_time_constant<typename IndexTupleExtractor<0, T...>::ValType>::value && (i == 0);
283  }
284 
285  template <typename... T>
286  EIGEN_DEVICE_FUNC static constexpr bool values_up_to_known_statically(const IndexTuple<T...>&) {
287  return is_compile_time_constant<typename IndexTupleExtractor<0, T...>::ValType>::value;
288  }
289 
290  template <typename... T>
291  EIGEN_DEVICE_FUNC static constexpr bool values_up_to_statically_known_to_increase(const IndexTuple<T...>&) {
292  return true;
293  }
294 };
295 } // namespace internal
296 
297 
298 
299 template<typename FirstType, typename... OtherTypes>
300 struct IndexList : internal::IndexTuple<FirstType, OtherTypes...> {
301  EIGEN_STRONG_INLINE EIGEN_DEVICE_FUNC constexpr Index operator[] (const Index i) const {
302  return internal::tuple_coeff<internal::array_size<internal::IndexTuple<FirstType, OtherTypes...> >::value-1, Index>::get(i, *this);
303  }
304  EIGEN_STRONG_INLINE EIGEN_DEVICE_FUNC constexpr Index get(const Index i) const {
305  return internal::tuple_coeff<internal::array_size<internal::IndexTuple<FirstType, OtherTypes...> >::value-1, Index>::get(i, *this);
306  }
308  return internal::tuple_coeff<internal::array_size<internal::IndexTuple<FirstType, OtherTypes...> >::value-1, Index>::set(i, *this, value);
309  }
310 
311  EIGEN_DEVICE_FUNC constexpr IndexList(const internal::IndexTuple<FirstType, OtherTypes...>& other) : internal::IndexTuple<FirstType, OtherTypes...>(other) { }
312  EIGEN_DEVICE_FUNC constexpr IndexList(FirstType& first, OtherTypes... other) : internal::IndexTuple<FirstType, OtherTypes...>(first, other...) { }
313  EIGEN_DEVICE_FUNC constexpr IndexList() : internal::IndexTuple<FirstType, OtherTypes...>() { }
314 
315  EIGEN_DEVICE_FUNC constexpr bool value_known_statically(const Index i) const {
316  return internal::tuple_coeff<internal::array_size<internal::IndexTuple<FirstType, OtherTypes...> >::value-1, Index>::value_known_statically(i, *this);
317  }
318  EIGEN_DEVICE_FUNC constexpr bool all_values_known_statically() const {
319  return internal::tuple_coeff<internal::array_size<internal::IndexTuple<FirstType, OtherTypes...> >::value-1, Index>::values_up_to_known_statically(*this);
320  }
321 
322  EIGEN_DEVICE_FUNC constexpr bool values_statically_known_to_increase() const {
323  return internal::tuple_coeff<internal::array_size<internal::IndexTuple<FirstType, OtherTypes...> >::value-1, Index>::values_up_to_statically_known_to_increase(*this);
324  }
325 };
326 
327 template <typename FirstType, typename... OtherTypes>
328 std::ostream& operator<<(std::ostream& os,
329  const IndexList<FirstType, OtherTypes...>& dims) {
330  os << "[";
331  for (size_t i = 0; i < 1 + sizeof...(OtherTypes); ++i) {
332  if (i > 0) os << ", ";
333  os << dims[i];
334  }
335  os << "]";
336  return os;
337 }
338 
339 template<typename FirstType, typename... OtherTypes>
340 constexpr IndexList<FirstType, OtherTypes...> make_index_list(FirstType val1, OtherTypes... other_vals) {
341  return IndexList<FirstType, OtherTypes...>(val1, other_vals...);
342 }
343 
344 
345 template<typename FirstType, typename... OtherTypes>
346 struct IndexPairList : internal::IndexTuple<FirstType, OtherTypes...> {
347  EIGEN_STRONG_INLINE EIGEN_DEVICE_FUNC constexpr IndexPair<Index> operator[] (const Index i) const {
348  return internal::tuple_coeff<internal::array_size<internal::IndexTuple<FirstType, OtherTypes...> >::value-1, IndexPair<Index>>::get(i, *this);
349  }
351  return internal::tuple_coeff<internal::array_size<internal::IndexTuple<FirstType, OtherTypes...>>::value-1, IndexPair<Index> >::set(i, *this, value);
352  }
353 
354  EIGEN_DEVICE_FUNC constexpr IndexPairList(const internal::IndexTuple<FirstType, OtherTypes...>& other) : internal::IndexTuple<FirstType, OtherTypes...>(other) { }
355  EIGEN_DEVICE_FUNC constexpr IndexPairList() : internal::IndexTuple<FirstType, OtherTypes...>() { }
356 
357  EIGEN_DEVICE_FUNC constexpr bool value_known_statically(const Index i) const {
358  return internal::tuple_coeff<internal::array_size<internal::IndexTuple<FirstType, OtherTypes...> >::value-1, Index>::value_known_statically(i, *this);
359  }
360 };
361 
362 namespace internal {
363 
364 template<typename FirstType, typename... OtherTypes>
365 EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE Index array_prod(const IndexList<FirstType, OtherTypes...>& sizes) {
366  Index result = 1;
368  for (size_t i = 0; i < array_size<IndexList<FirstType, OtherTypes...> >::value; ++i) {
369  result *= sizes[i];
370  }
371  return result;
372 }
373 
374 template<typename FirstType, typename... OtherTypes> struct array_size<IndexList<FirstType, OtherTypes...> > {
375  static const size_t value = array_size<IndexTuple<FirstType, OtherTypes...> >::value;
376 };
377 template<typename FirstType, typename... OtherTypes> struct array_size<const IndexList<FirstType, OtherTypes...> > {
378  static const size_t value = array_size<IndexTuple<FirstType, OtherTypes...> >::value;
379 };
380 
381 template<typename FirstType, typename... OtherTypes> struct array_size<IndexPairList<FirstType, OtherTypes...> > {
382  static const size_t value = std::tuple_size<std::tuple<FirstType, OtherTypes...> >::value;
383 };
384 template<typename FirstType, typename... OtherTypes> struct array_size<const IndexPairList<FirstType, OtherTypes...> > {
385  static const size_t value = std::tuple_size<std::tuple<FirstType, OtherTypes...> >::value;
386 };
387 
388 template<Index N, typename FirstType, typename... OtherTypes> EIGEN_DEVICE_FUNC constexpr Index array_get(IndexList<FirstType, OtherTypes...>& a) {
389  return IndexTupleExtractor<N, FirstType, OtherTypes...>::get_val(a);
390 }
391 template<Index N, typename FirstType, typename... OtherTypes> EIGEN_DEVICE_FUNC constexpr Index array_get(const IndexList<FirstType, OtherTypes...>& a) {
392  return IndexTupleExtractor<N, FirstType, OtherTypes...>::get_val(a);
393 }
394 
395 template <typename T>
396 struct index_known_statically_impl {
397  EIGEN_DEVICE_FUNC static constexpr bool run(const Index) {
398  return false;
399  }
400 };
401 
402 template <typename FirstType, typename... OtherTypes>
403 struct index_known_statically_impl<IndexList<FirstType, OtherTypes...> > {
404  EIGEN_DEVICE_FUNC static constexpr bool run(const Index i) {
405  return IndexList<FirstType, OtherTypes...>().value_known_statically(i);
406  }
407 };
408 
409 template <typename FirstType, typename... OtherTypes>
410 struct index_known_statically_impl<const IndexList<FirstType, OtherTypes...> > {
411  EIGEN_DEVICE_FUNC static constexpr bool run(const Index i) {
412  return IndexList<FirstType, OtherTypes...>().value_known_statically(i);
413  }
414 };
415 
416 
417 template <typename T>
418 struct all_indices_known_statically_impl {
419  static constexpr bool run() {
420  return false;
421  }
422 };
423 
424 template <typename FirstType, typename... OtherTypes>
425 struct all_indices_known_statically_impl<IndexList<FirstType, OtherTypes...> > {
426  EIGEN_DEVICE_FUNC static constexpr bool run() {
427  return IndexList<FirstType, OtherTypes...>().all_values_known_statically();
428  }
429 };
430 
431 template <typename FirstType, typename... OtherTypes>
432 struct all_indices_known_statically_impl<const IndexList<FirstType, OtherTypes...> > {
433  EIGEN_DEVICE_FUNC static constexpr bool run() {
434  return IndexList<FirstType, OtherTypes...>().all_values_known_statically();
435  }
436 };
437 
438 
439 template <typename T>
440 struct indices_statically_known_to_increase_impl {
441  EIGEN_DEVICE_FUNC static constexpr bool run() {
442  return false;
443  }
444 };
445 
446 template <typename FirstType, typename... OtherTypes>
447  struct indices_statically_known_to_increase_impl<IndexList<FirstType, OtherTypes...> > {
448  EIGEN_DEVICE_FUNC static constexpr bool run() {
449  return Eigen::IndexList<FirstType, OtherTypes...>().values_statically_known_to_increase();
450  }
451 };
452 
453 template <typename FirstType, typename... OtherTypes>
454  struct indices_statically_known_to_increase_impl<const IndexList<FirstType, OtherTypes...> > {
455  EIGEN_DEVICE_FUNC static constexpr bool run() {
456  return Eigen::IndexList<FirstType, OtherTypes...>().values_statically_known_to_increase();
457  }
458 };
459 
460 
461 template <typename Tx>
462 struct index_statically_eq_impl {
463  EIGEN_DEVICE_FUNC static constexpr bool run(Index, Index) {
464  return false;
465  }
466 };
467 
468 template <typename FirstType, typename... OtherTypes>
469 struct index_statically_eq_impl<IndexList<FirstType, OtherTypes...> > {
470  EIGEN_DEVICE_FUNC static constexpr bool run(const Index i, const Index value) {
471  return IndexList<FirstType, OtherTypes...>().value_known_statically(i) &
472  (IndexList<FirstType, OtherTypes...>().get(i) == value);
473  }
474 };
475 
476 template <typename FirstType, typename... OtherTypes>
477 struct index_statically_eq_impl<const IndexList<FirstType, OtherTypes...> > {
478  EIGEN_DEVICE_FUNC static constexpr bool run(const Index i, const Index value) {
479  return IndexList<FirstType, OtherTypes...>().value_known_statically(i) &
480  (IndexList<FirstType, OtherTypes...>().get(i) == value);
481  }
482 };
483 
484 
485 template <typename T>
486 struct index_statically_ne_impl {
487  EIGEN_DEVICE_FUNC static constexpr bool run(Index, Index) {
488  return false;
489  }
490 };
491 
492 template <typename FirstType, typename... OtherTypes>
493 struct index_statically_ne_impl<IndexList<FirstType, OtherTypes...> > {
494  EIGEN_DEVICE_FUNC static constexpr bool run(const Index i, const Index value) {
495  return IndexList<FirstType, OtherTypes...>().value_known_statically(i) &
496  (IndexList<FirstType, OtherTypes...>().get(i) != value);
497  }
498 };
499 
500 template <typename FirstType, typename... OtherTypes>
501 struct index_statically_ne_impl<const IndexList<FirstType, OtherTypes...> > {
502  EIGEN_DEVICE_FUNC static constexpr bool run(const Index i, const Index value) {
503  return IndexList<FirstType, OtherTypes...>().value_known_statically(i) &
504  (IndexList<FirstType, OtherTypes...>().get(i) != value);
505  }
506 };
507 
508 
509 template <typename T>
510 struct index_statically_gt_impl {
511  EIGEN_DEVICE_FUNC static constexpr bool run(Index, Index) {
512  return false;
513  }
514 };
515 
516 template <typename FirstType, typename... OtherTypes>
517 struct index_statically_gt_impl<IndexList<FirstType, OtherTypes...> > {
518  EIGEN_DEVICE_FUNC static constexpr bool run(const Index i, const Index value) {
519  return IndexList<FirstType, OtherTypes...>().value_known_statically(i) &
520  (IndexList<FirstType, OtherTypes...>().get(i) > value);
521  }
522 };
523 
524 template <typename FirstType, typename... OtherTypes>
525 struct index_statically_gt_impl<const IndexList<FirstType, OtherTypes...> > {
526  EIGEN_DEVICE_FUNC static constexpr bool run(const Index i, const Index value) {
527  return IndexList<FirstType, OtherTypes...>().value_known_statically(i) &
528  (IndexList<FirstType, OtherTypes...>().get(i) > value);
529  }
530 };
531 
532 
533 
534 template <typename T>
535 struct index_statically_lt_impl {
536  EIGEN_DEVICE_FUNC static constexpr bool run(Index, Index) {
537  return false;
538  }
539 };
540 
541 template <typename FirstType, typename... OtherTypes>
542 struct index_statically_lt_impl<IndexList<FirstType, OtherTypes...> > {
543  EIGEN_DEVICE_FUNC static constexpr bool run(const Index i, const Index value) {
544  return IndexList<FirstType, OtherTypes...>().value_known_statically(i) &
545  (IndexList<FirstType, OtherTypes...>().get(i) < value);
546  }
547 };
548 
549 template <typename FirstType, typename... OtherTypes>
550 struct index_statically_lt_impl<const IndexList<FirstType, OtherTypes...> > {
551  EIGEN_DEVICE_FUNC static constexpr bool run(const Index i, const Index value) {
552  return IndexList<FirstType, OtherTypes...>().value_known_statically(i) &
553  (IndexList<FirstType, OtherTypes...>().get(i) < value);
554  }
555 };
556 
557 
558 
559 template <typename Tx>
560 struct index_pair_first_statically_eq_impl {
561  EIGEN_DEVICE_FUNC static constexpr bool run(Index, Index) {
562  return false;
563  }
564 };
565 
566 template <typename FirstType, typename... OtherTypes>
567 struct index_pair_first_statically_eq_impl<IndexPairList<FirstType, OtherTypes...> > {
568  EIGEN_DEVICE_FUNC static constexpr bool run(const Index i, const Index value) {
569  return IndexPairList<FirstType, OtherTypes...>().value_known_statically(i) &
570  (IndexPairList<FirstType, OtherTypes...>().operator[](i).first == value);
571  }
572 };
573 
574 template <typename FirstType, typename... OtherTypes>
575 struct index_pair_first_statically_eq_impl<const IndexPairList<FirstType, OtherTypes...> > {
576  EIGEN_DEVICE_FUNC static constexpr bool run(const Index i, const Index value) {
577  return IndexPairList<FirstType, OtherTypes...>().value_known_statically(i) &
578  (IndexPairList<FirstType, OtherTypes...>().operator[](i).first == value);
579  }
580 };
581 
582 
583 
584 template <typename Tx>
585 struct index_pair_second_statically_eq_impl {
586  EIGEN_DEVICE_FUNC static constexpr bool run(Index, Index) {
587  return false;
588  }
589 };
590 
591 template <typename FirstType, typename... OtherTypes>
592 struct index_pair_second_statically_eq_impl<IndexPairList<FirstType, OtherTypes...> > {
593  EIGEN_DEVICE_FUNC static constexpr bool run(const Index i, const Index value) {
594  return IndexPairList<FirstType, OtherTypes...>().value_known_statically(i) &
595  (IndexPairList<FirstType, OtherTypes...>().operator[](i).second == value);
596  }
597 };
598 
599 template <typename FirstType, typename... OtherTypes>
600 struct index_pair_second_statically_eq_impl<const IndexPairList<FirstType, OtherTypes...> > {
601  EIGEN_DEVICE_FUNC static constexpr bool run(const Index i, const Index value) {
602  return IndexPairList<FirstType, OtherTypes...>().value_known_statically(i) &
603  (IndexPairList<FirstType, OtherTypes...>().operator[](i).second == value);
604  }
605 };
606 
607 
608 } // end namespace internal
609 } // end namespace Eigen
610 
611 #else
612 
613 namespace Eigen {
614 namespace internal {
615 
616 template <typename T>
619  return false;
620  }
621 };
622 
623 template <typename T>
626  return false;
627  }
628 };
629 
630 template <typename T>
633  return false;
634  }
635 };
636 
637 template <typename T>
640  return false;
641  }
642 };
643 
644 template <typename T>
647  return false;
648  }
649 };
650 
651 template <typename T>
654  return false;
655  }
656 };
657 
658 template <typename T>
661  return false;
662  }
663 };
664 
665 template <typename Tx>
668  return false;
669  }
670 };
671 
672 template <typename Tx>
675  return false;
676  }
677 };
678 
679 
680 
681 } // end namespace internal
682 } // end namespace Eigen
683 
684 #endif
685 
686 
687 namespace Eigen {
688 namespace internal {
689 template <typename T>
692 }
693 
694 template <typename T>
697 }
698 
699 template <typename T>
702 }
703 
704 template <typename T>
707 }
708 
709 template <typename T>
712 }
713 
714 template <typename T>
717 }
718 
719 template <typename T>
722 }
723 
724 template <typename T>
727 }
728 
729 template <typename T>
732 }
733 
734 } // end namespace internal
735 } // end namespace Eigen
736 
737 
738 #endif // EIGEN_CXX11_TENSOR_TENSOR_INDEX_LIST_H
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EIGEN_CONSTEXPR Index first(const T &x) EIGEN_NOEXCEPT
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A small structure to hold a non zero as a triplet (i,j,value).
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EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE FixedSegmentReturnType< internal::get_fixed_value< NType >::value >::Type head(NType n)
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@ RequireInitialization
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autogenerated on Sat Nov 16 2024 04:06:06