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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 #include "main.h"
11 
12 #include <Eigen/CXX11/Tensor>
13 
14 #ifdef EIGEN_HAS_INDEX_LIST
15 
test_static_index_list()16 static void test_static_index_list()
17 {
18   Tensor<float, 4> tensor(2,3,5,7);
19   tensor.setRandom();
20 
21   constexpr auto reduction_axis = make_index_list(0, 1, 2);
22   VERIFY_IS_EQUAL(internal::array_get<0>(reduction_axis), 0);
23   VERIFY_IS_EQUAL(internal::array_get<1>(reduction_axis), 1);
24   VERIFY_IS_EQUAL(internal::array_get<2>(reduction_axis), 2);
25   VERIFY_IS_EQUAL(static_cast<DenseIndex>(reduction_axis[0]), 0);
26   VERIFY_IS_EQUAL(static_cast<DenseIndex>(reduction_axis[1]), 1);
27   VERIFY_IS_EQUAL(static_cast<DenseIndex>(reduction_axis[2]), 2);
28 
29   EIGEN_STATIC_ASSERT((internal::array_get<0>(reduction_axis) == 0), YOU_MADE_A_PROGRAMMING_MISTAKE);
30   EIGEN_STATIC_ASSERT((internal::array_get<1>(reduction_axis) == 1), YOU_MADE_A_PROGRAMMING_MISTAKE);
31   EIGEN_STATIC_ASSERT((internal::array_get<2>(reduction_axis) == 2), YOU_MADE_A_PROGRAMMING_MISTAKE);
32 
33   Tensor<float, 1> result = tensor.sum(reduction_axis);
34   for (int i = 0; i < result.size(); ++i) {
35     float expected = 0.0f;
36     for (int j = 0; j < 2; ++j) {
37       for (int k = 0; k < 3; ++k) {
38         for (int l = 0; l < 5; ++l) {
39           expected += tensor(j,k,l,i);
40         }
41       }
42     }
43     VERIFY_IS_APPROX(result(i), expected);
44   }
45 }
46 
47 
test_type2index_list()48 static void test_type2index_list()
49 {
50   Tensor<float, 5> tensor(2,3,5,7,11);
51   tensor.setRandom();
52   tensor += tensor.constant(10.0f);
53 
54   typedef Eigen::IndexList<Eigen::type2index<0>> Dims0;
55   typedef Eigen::IndexList<Eigen::type2index<0>, Eigen::type2index<1>> Dims1;
56   typedef Eigen::IndexList<Eigen::type2index<0>, Eigen::type2index<1>, Eigen::type2index<2>> Dims2;
57   typedef Eigen::IndexList<Eigen::type2index<0>, Eigen::type2index<1>, Eigen::type2index<2>, Eigen::type2index<3>> Dims3;
58   typedef Eigen::IndexList<Eigen::type2index<0>, Eigen::type2index<1>, Eigen::type2index<2>, Eigen::type2index<3>, Eigen::type2index<4>> Dims4;
59 
60 #if 0
61   EIGEN_STATIC_ASSERT((internal::indices_statically_known_to_increase<Dims0>() == true), YOU_MADE_A_PROGRAMMING_MISTAKE);
62   EIGEN_STATIC_ASSERT((internal::indices_statically_known_to_increase<Dims1>() == true), YOU_MADE_A_PROGRAMMING_MISTAKE);
63   EIGEN_STATIC_ASSERT((internal::indices_statically_known_to_increase<Dims2>() == true), YOU_MADE_A_PROGRAMMING_MISTAKE);
64   EIGEN_STATIC_ASSERT((internal::indices_statically_known_to_increase<Dims3>() == true), YOU_MADE_A_PROGRAMMING_MISTAKE);
65   EIGEN_STATIC_ASSERT((internal::indices_statically_known_to_increase<Dims4>() == true), YOU_MADE_A_PROGRAMMING_MISTAKE);
66 #endif
67 
68   EIGEN_STATIC_ASSERT((internal::are_inner_most_dims<Dims0, 1, ColMajor>::value == true), YOU_MADE_A_PROGRAMMING_MISTAKE);
69   EIGEN_STATIC_ASSERT((internal::are_inner_most_dims<Dims1, 2, ColMajor>::value == true), YOU_MADE_A_PROGRAMMING_MISTAKE);
70   EIGEN_STATIC_ASSERT((internal::are_inner_most_dims<Dims2, 3, ColMajor>::value == true), YOU_MADE_A_PROGRAMMING_MISTAKE);
71   EIGEN_STATIC_ASSERT((internal::are_inner_most_dims<Dims3, 4, ColMajor>::value == true), YOU_MADE_A_PROGRAMMING_MISTAKE);
72   EIGEN_STATIC_ASSERT((internal::are_inner_most_dims<Dims4, 5, ColMajor>::value == true), YOU_MADE_A_PROGRAMMING_MISTAKE);
73 
74   EIGEN_STATIC_ASSERT((internal::are_inner_most_dims<Dims0, 1, RowMajor>::value == true), YOU_MADE_A_PROGRAMMING_MISTAKE);
75   EIGEN_STATIC_ASSERT((internal::are_inner_most_dims<Dims1, 2, RowMajor>::value == true), YOU_MADE_A_PROGRAMMING_MISTAKE);
76   EIGEN_STATIC_ASSERT((internal::are_inner_most_dims<Dims2, 3, RowMajor>::value == true), YOU_MADE_A_PROGRAMMING_MISTAKE);
77   EIGEN_STATIC_ASSERT((internal::are_inner_most_dims<Dims3, 4, RowMajor>::value == true), YOU_MADE_A_PROGRAMMING_MISTAKE);
78   EIGEN_STATIC_ASSERT((internal::are_inner_most_dims<Dims4, 5, RowMajor>::value == true), YOU_MADE_A_PROGRAMMING_MISTAKE);
79 
80   const Dims0 reduction_axis0;
81   Tensor<float, 4> result0 = tensor.sum(reduction_axis0);
82   for (int m = 0; m < 11; ++m) {
83     for (int l = 0; l < 7; ++l) {
84       for (int k = 0; k < 5; ++k) {
85         for (int j = 0; j < 3; ++j) {
86           float expected = 0.0f;
87           for (int i = 0; i < 2; ++i) {
88             expected += tensor(i,j,k,l,m);
89           }
90           VERIFY_IS_APPROX(result0(j,k,l,m), expected);
91         }
92       }
93     }
94   }
95 
96   const Dims1 reduction_axis1;
97   Tensor<float, 3> result1 = tensor.sum(reduction_axis1);
98   for (int m = 0; m < 11; ++m) {
99     for (int l = 0; l < 7; ++l) {
100       for (int k = 0; k < 5; ++k) {
101         float expected = 0.0f;
102         for (int j = 0; j < 3; ++j) {
103           for (int i = 0; i < 2; ++i) {
104             expected += tensor(i,j,k,l,m);
105           }
106         }
107         VERIFY_IS_APPROX(result1(k,l,m), expected);
108       }
109     }
110   }
111 
112   const Dims2 reduction_axis2;
113   Tensor<float, 2> result2 = tensor.sum(reduction_axis2);
114   for (int m = 0; m < 11; ++m) {
115     for (int l = 0; l < 7; ++l) {
116       float expected = 0.0f;
117       for (int k = 0; k < 5; ++k) {
118         for (int j = 0; j < 3; ++j) {
119           for (int i = 0; i < 2; ++i) {
120             expected += tensor(i,j,k,l,m);
121           }
122         }
123       }
124       VERIFY_IS_APPROX(result2(l,m), expected);
125     }
126   }
127 
128   const Dims3 reduction_axis3;
129   Tensor<float, 1> result3 = tensor.sum(reduction_axis3);
130   for (int m = 0; m < 11; ++m) {
131     float expected = 0.0f;
132     for (int l = 0; l < 7; ++l) {
133       for (int k = 0; k < 5; ++k) {
134         for (int j = 0; j < 3; ++j) {
135           for (int i = 0; i < 2; ++i) {
136             expected += tensor(i,j,k,l,m);
137           }
138         }
139       }
140     }
141     VERIFY_IS_APPROX(result3(m), expected);
142   }
143 
144   const Dims4 reduction_axis4;
145   Tensor<float, 0> result4 = tensor.sum(reduction_axis4);
146   float expected = 0.0f;
147   for (int m = 0; m < 11; ++m) {
148     for (int l = 0; l < 7; ++l) {
149       for (int k = 0; k < 5; ++k) {
150         for (int j = 0; j < 3; ++j) {
151           for (int i = 0; i < 2; ++i) {
152             expected += tensor(i,j,k,l,m);
153           }
154         }
155       }
156     }
157   }
158   VERIFY_IS_APPROX(result4(), expected);
159 }
160 
161 
test_type2indexpair_list()162 static void test_type2indexpair_list()
163 {
164   Tensor<float, 5> tensor(2,3,5,7,11);
165   tensor.setRandom();
166   tensor += tensor.constant(10.0f);
167 
168   typedef Eigen::IndexPairList<Eigen::type2indexpair<0,10>> Dims0;
169   typedef Eigen::IndexPairList<Eigen::type2indexpair<0,10>, Eigen::type2indexpair<1,11>, Eigen::type2indexpair<2,12>> Dims2_a;
170   typedef Eigen::IndexPairList<Eigen::type2indexpair<0,10>, Eigen::IndexPair<DenseIndex>, Eigen::type2indexpair<2,12>> Dims2_b;
171   typedef Eigen::IndexPairList<Eigen::IndexPair<DenseIndex>, Eigen::type2indexpair<1,11>, Eigen::IndexPair<DenseIndex>> Dims2_c;
172 
173   Dims0 d0;
174   Dims2_a d2_a;
175 
176   Dims2_b d2_b;
177   d2_b.set(1, Eigen::IndexPair<DenseIndex>(1,11));
178 
179   Dims2_c d2_c;
180   d2_c.set(0, Eigen::IndexPair<DenseIndex>(Eigen::IndexPair<DenseIndex>(0,10)));
181   d2_c.set(1, Eigen::IndexPair<DenseIndex>(1,11));  // setting type2indexpair to correct value.
182   d2_c.set(2, Eigen::IndexPair<DenseIndex>(2,12));
183 
184   VERIFY_IS_EQUAL(d2_a[0].first, 0);
185   VERIFY_IS_EQUAL(d2_a[0].second, 10);
186   VERIFY_IS_EQUAL(d2_a[1].first, 1);
187   VERIFY_IS_EQUAL(d2_a[1].second, 11);
188   VERIFY_IS_EQUAL(d2_a[2].first, 2);
189   VERIFY_IS_EQUAL(d2_a[2].second, 12);
190 
191   VERIFY_IS_EQUAL(d2_b[0].first, 0);
192   VERIFY_IS_EQUAL(d2_b[0].second, 10);
193   VERIFY_IS_EQUAL(d2_b[1].first, 1);
194   VERIFY_IS_EQUAL(d2_b[1].second, 11);
195   VERIFY_IS_EQUAL(d2_b[2].first, 2);
196   VERIFY_IS_EQUAL(d2_b[2].second, 12);
197 
198   VERIFY_IS_EQUAL(d2_c[0].first, 0);
199   VERIFY_IS_EQUAL(d2_c[0].second, 10);
200   VERIFY_IS_EQUAL(d2_c[1].first, 1);
201   VERIFY_IS_EQUAL(d2_c[1].second, 11);
202   VERIFY_IS_EQUAL(d2_c[2].first, 2);
203   VERIFY_IS_EQUAL(d2_c[2].second, 12);
204 
205   EIGEN_STATIC_ASSERT((d2_a.value_known_statically(0) == true), YOU_MADE_A_PROGRAMMING_MISTAKE);
206   EIGEN_STATIC_ASSERT((d2_a.value_known_statically(1) == true), YOU_MADE_A_PROGRAMMING_MISTAKE);
207   EIGEN_STATIC_ASSERT((d2_a.value_known_statically(2) == true), YOU_MADE_A_PROGRAMMING_MISTAKE);
208 
209   EIGEN_STATIC_ASSERT((d2_b.value_known_statically(0) == true), YOU_MADE_A_PROGRAMMING_MISTAKE);
210   EIGEN_STATIC_ASSERT((d2_b.value_known_statically(1) == false), YOU_MADE_A_PROGRAMMING_MISTAKE);
211   EIGEN_STATIC_ASSERT((d2_b.value_known_statically(2) == true), YOU_MADE_A_PROGRAMMING_MISTAKE);
212 
213   EIGEN_STATIC_ASSERT((d2_c.value_known_statically(0) == false), YOU_MADE_A_PROGRAMMING_MISTAKE);
214   EIGEN_STATIC_ASSERT((d2_c.value_known_statically(1) == true), YOU_MADE_A_PROGRAMMING_MISTAKE);
215   EIGEN_STATIC_ASSERT((d2_c.value_known_statically(2) == false), YOU_MADE_A_PROGRAMMING_MISTAKE);
216 
217   EIGEN_STATIC_ASSERT((Eigen::internal::index_pair_first_statically_eq<Dims0>(0, 0) == true), YOU_MADE_A_PROGRAMMING_MISTAKE);
218   EIGEN_STATIC_ASSERT((Eigen::internal::index_pair_first_statically_eq<Dims0>(0, 1) == false), YOU_MADE_A_PROGRAMMING_MISTAKE);
219 
220   EIGEN_STATIC_ASSERT((Eigen::internal::index_pair_first_statically_eq<Dims2_a>(0, 0) == true), YOU_MADE_A_PROGRAMMING_MISTAKE);
221   EIGEN_STATIC_ASSERT((Eigen::internal::index_pair_first_statically_eq<Dims2_a>(0, 1) == false), YOU_MADE_A_PROGRAMMING_MISTAKE);
222   EIGEN_STATIC_ASSERT((Eigen::internal::index_pair_first_statically_eq<Dims2_a>(1, 1) == true), YOU_MADE_A_PROGRAMMING_MISTAKE);
223   EIGEN_STATIC_ASSERT((Eigen::internal::index_pair_first_statically_eq<Dims2_a>(1, 2) == false), YOU_MADE_A_PROGRAMMING_MISTAKE);
224   EIGEN_STATIC_ASSERT((Eigen::internal::index_pair_first_statically_eq<Dims2_a>(2, 2) == true), YOU_MADE_A_PROGRAMMING_MISTAKE);
225   EIGEN_STATIC_ASSERT((Eigen::internal::index_pair_first_statically_eq<Dims2_a>(2, 3) == false), YOU_MADE_A_PROGRAMMING_MISTAKE);
226 
227   EIGEN_STATIC_ASSERT((Eigen::internal::index_pair_first_statically_eq<Dims2_b>(0, 0) == true), YOU_MADE_A_PROGRAMMING_MISTAKE);
228   EIGEN_STATIC_ASSERT((Eigen::internal::index_pair_first_statically_eq<Dims2_b>(0, 1) == false), YOU_MADE_A_PROGRAMMING_MISTAKE);
229   EIGEN_STATIC_ASSERT((Eigen::internal::index_pair_first_statically_eq<Dims2_b>(1, 1) == false), YOU_MADE_A_PROGRAMMING_MISTAKE);
230   EIGEN_STATIC_ASSERT((Eigen::internal::index_pair_first_statically_eq<Dims2_b>(1, 2) == false), YOU_MADE_A_PROGRAMMING_MISTAKE);
231   EIGEN_STATIC_ASSERT((Eigen::internal::index_pair_first_statically_eq<Dims2_b>(2, 2) == true), YOU_MADE_A_PROGRAMMING_MISTAKE);
232   EIGEN_STATIC_ASSERT((Eigen::internal::index_pair_first_statically_eq<Dims2_b>(2, 3) == false), YOU_MADE_A_PROGRAMMING_MISTAKE);
233 
234   EIGEN_STATIC_ASSERT((Eigen::internal::index_pair_first_statically_eq<Dims2_c>(0, 0) == false), YOU_MADE_A_PROGRAMMING_MISTAKE);
235   EIGEN_STATIC_ASSERT((Eigen::internal::index_pair_first_statically_eq<Dims2_c>(0, 1) == false), YOU_MADE_A_PROGRAMMING_MISTAKE);
236   EIGEN_STATIC_ASSERT((Eigen::internal::index_pair_first_statically_eq<Dims2_c>(1, 1) == true), YOU_MADE_A_PROGRAMMING_MISTAKE);
237   EIGEN_STATIC_ASSERT((Eigen::internal::index_pair_first_statically_eq<Dims2_c>(1, 2) == false), YOU_MADE_A_PROGRAMMING_MISTAKE);
238   EIGEN_STATIC_ASSERT((Eigen::internal::index_pair_first_statically_eq<Dims2_c>(2, 2) == false), YOU_MADE_A_PROGRAMMING_MISTAKE);
239   EIGEN_STATIC_ASSERT((Eigen::internal::index_pair_first_statically_eq<Dims2_c>(2, 3) == false), YOU_MADE_A_PROGRAMMING_MISTAKE);
240 
241   EIGEN_STATIC_ASSERT((Eigen::internal::index_pair_second_statically_eq<Dims0>(0, 10) == true), YOU_MADE_A_PROGRAMMING_MISTAKE);
242   EIGEN_STATIC_ASSERT((Eigen::internal::index_pair_second_statically_eq<Dims0>(0, 11) == false), YOU_MADE_A_PROGRAMMING_MISTAKE);
243 
244   EIGEN_STATIC_ASSERT((Eigen::internal::index_pair_second_statically_eq<Dims2_a>(0, 10) == true), YOU_MADE_A_PROGRAMMING_MISTAKE);
245   EIGEN_STATIC_ASSERT((Eigen::internal::index_pair_second_statically_eq<Dims2_a>(0, 11) == false), YOU_MADE_A_PROGRAMMING_MISTAKE);
246   EIGEN_STATIC_ASSERT((Eigen::internal::index_pair_second_statically_eq<Dims2_a>(1, 11) == true), YOU_MADE_A_PROGRAMMING_MISTAKE);
247   EIGEN_STATIC_ASSERT((Eigen::internal::index_pair_second_statically_eq<Dims2_a>(1, 12) == false), YOU_MADE_A_PROGRAMMING_MISTAKE);
248   EIGEN_STATIC_ASSERT((Eigen::internal::index_pair_second_statically_eq<Dims2_a>(2, 12) == true), YOU_MADE_A_PROGRAMMING_MISTAKE);
249   EIGEN_STATIC_ASSERT((Eigen::internal::index_pair_second_statically_eq<Dims2_a>(2, 13) == false), YOU_MADE_A_PROGRAMMING_MISTAKE);
250 
251   EIGEN_STATIC_ASSERT((Eigen::internal::index_pair_second_statically_eq<Dims2_b>(0, 10) == true), YOU_MADE_A_PROGRAMMING_MISTAKE);
252   EIGEN_STATIC_ASSERT((Eigen::internal::index_pair_second_statically_eq<Dims2_b>(0, 11) == false), YOU_MADE_A_PROGRAMMING_MISTAKE);
253   EIGEN_STATIC_ASSERT((Eigen::internal::index_pair_second_statically_eq<Dims2_b>(1, 11) == false), YOU_MADE_A_PROGRAMMING_MISTAKE);
254   EIGEN_STATIC_ASSERT((Eigen::internal::index_pair_second_statically_eq<Dims2_b>(1, 12) == false), YOU_MADE_A_PROGRAMMING_MISTAKE);
255   EIGEN_STATIC_ASSERT((Eigen::internal::index_pair_second_statically_eq<Dims2_b>(2, 12) == true), YOU_MADE_A_PROGRAMMING_MISTAKE);
256   EIGEN_STATIC_ASSERT((Eigen::internal::index_pair_second_statically_eq<Dims2_b>(2, 13) == false), YOU_MADE_A_PROGRAMMING_MISTAKE);
257 
258   EIGEN_STATIC_ASSERT((Eigen::internal::index_pair_second_statically_eq<Dims2_c>(0, 10) == false), YOU_MADE_A_PROGRAMMING_MISTAKE);
259   EIGEN_STATIC_ASSERT((Eigen::internal::index_pair_second_statically_eq<Dims2_c>(0, 11) == false), YOU_MADE_A_PROGRAMMING_MISTAKE);
260   EIGEN_STATIC_ASSERT((Eigen::internal::index_pair_second_statically_eq<Dims2_c>(1, 11) == true), YOU_MADE_A_PROGRAMMING_MISTAKE);
261   EIGEN_STATIC_ASSERT((Eigen::internal::index_pair_second_statically_eq<Dims2_c>(1, 12) == false), YOU_MADE_A_PROGRAMMING_MISTAKE);
262   EIGEN_STATIC_ASSERT((Eigen::internal::index_pair_second_statically_eq<Dims2_c>(2, 12) == false), YOU_MADE_A_PROGRAMMING_MISTAKE);
263   EIGEN_STATIC_ASSERT((Eigen::internal::index_pair_second_statically_eq<Dims2_c>(2, 13) == false), YOU_MADE_A_PROGRAMMING_MISTAKE);
264 }
265 
266 
test_dynamic_index_list()267 static void test_dynamic_index_list()
268 {
269   Tensor<float, 4> tensor(2,3,5,7);
270   tensor.setRandom();
271 
272   int dim1 = 2;
273   int dim2 = 1;
274   int dim3 = 0;
275 
276   auto reduction_axis = make_index_list(dim1, dim2, dim3);
277 
278   VERIFY_IS_EQUAL(internal::array_get<0>(reduction_axis), 2);
279   VERIFY_IS_EQUAL(internal::array_get<1>(reduction_axis), 1);
280   VERIFY_IS_EQUAL(internal::array_get<2>(reduction_axis), 0);
281   VERIFY_IS_EQUAL(static_cast<DenseIndex>(reduction_axis[0]), 2);
282   VERIFY_IS_EQUAL(static_cast<DenseIndex>(reduction_axis[1]), 1);
283   VERIFY_IS_EQUAL(static_cast<DenseIndex>(reduction_axis[2]), 0);
284 
285   Tensor<float, 1> result = tensor.sum(reduction_axis);
286   for (int i = 0; i < result.size(); ++i) {
287     float expected = 0.0f;
288     for (int j = 0; j < 2; ++j) {
289       for (int k = 0; k < 3; ++k) {
290         for (int l = 0; l < 5; ++l) {
291           expected += tensor(j,k,l,i);
292         }
293       }
294     }
295     VERIFY_IS_APPROX(result(i), expected);
296   }
297 }
298 
test_mixed_index_list()299 static void test_mixed_index_list()
300 {
301   Tensor<float, 4> tensor(2,3,5,7);
302   tensor.setRandom();
303 
304   int dim2 = 1;
305   int dim4 = 3;
306 
307   auto reduction_axis = make_index_list(0, dim2, 2, dim4);
308 
309   VERIFY_IS_EQUAL(internal::array_get<0>(reduction_axis), 0);
310   VERIFY_IS_EQUAL(internal::array_get<1>(reduction_axis), 1);
311   VERIFY_IS_EQUAL(internal::array_get<2>(reduction_axis), 2);
312   VERIFY_IS_EQUAL(internal::array_get<3>(reduction_axis), 3);
313   VERIFY_IS_EQUAL(static_cast<DenseIndex>(reduction_axis[0]), 0);
314   VERIFY_IS_EQUAL(static_cast<DenseIndex>(reduction_axis[1]), 1);
315   VERIFY_IS_EQUAL(static_cast<DenseIndex>(reduction_axis[2]), 2);
316   VERIFY_IS_EQUAL(static_cast<DenseIndex>(reduction_axis[3]), 3);
317 
318   typedef IndexList<type2index<0>, int, type2index<2>, int> ReductionIndices;
319   ReductionIndices reduction_indices;
320   reduction_indices.set(1, 1);
321   reduction_indices.set(3, 3);
322   EIGEN_STATIC_ASSERT((internal::array_get<0>(reduction_indices) == 0), YOU_MADE_A_PROGRAMMING_MISTAKE);
323   EIGEN_STATIC_ASSERT((internal::array_get<2>(reduction_indices) == 2), YOU_MADE_A_PROGRAMMING_MISTAKE);
324   EIGEN_STATIC_ASSERT((internal::index_known_statically<ReductionIndices>(0) == true), YOU_MADE_A_PROGRAMMING_MISTAKE);
325   EIGEN_STATIC_ASSERT((internal::index_known_statically<ReductionIndices>(2) == true), YOU_MADE_A_PROGRAMMING_MISTAKE);
326   EIGEN_STATIC_ASSERT((internal::index_statically_eq<ReductionIndices>(0, 0) == true), YOU_MADE_A_PROGRAMMING_MISTAKE);
327   EIGEN_STATIC_ASSERT((internal::index_statically_eq<ReductionIndices>(2, 2) == true), YOU_MADE_A_PROGRAMMING_MISTAKE);
328 #if 0
329   EIGEN_STATIC_ASSERT((internal::all_indices_known_statically<ReductionIndices>() == false), YOU_MADE_A_PROGRAMMING_MISTAKE);
330   EIGEN_STATIC_ASSERT((internal::indices_statically_known_to_increase<ReductionIndices>() == false), YOU_MADE_A_PROGRAMMING_MISTAKE);
331 #endif
332 
333   typedef IndexList<type2index<0>, type2index<1>, type2index<2>, type2index<3>> ReductionList;
334   ReductionList reduction_list;
335   EIGEN_STATIC_ASSERT((internal::index_statically_eq<ReductionList>(0, 0) == true), YOU_MADE_A_PROGRAMMING_MISTAKE);
336   EIGEN_STATIC_ASSERT((internal::index_statically_eq<ReductionList>(1, 1) == true), YOU_MADE_A_PROGRAMMING_MISTAKE);
337   EIGEN_STATIC_ASSERT((internal::index_statically_eq<ReductionList>(2, 2) == true), YOU_MADE_A_PROGRAMMING_MISTAKE);
338   EIGEN_STATIC_ASSERT((internal::index_statically_eq<ReductionList>(3, 3) == true), YOU_MADE_A_PROGRAMMING_MISTAKE);
339 #if 0
340   EIGEN_STATIC_ASSERT((internal::all_indices_known_statically<ReductionList>() == true), YOU_MADE_A_PROGRAMMING_MISTAKE);
341   EIGEN_STATIC_ASSERT((internal::indices_statically_known_to_increase<ReductionList>() == true), YOU_MADE_A_PROGRAMMING_MISTAKE);
342 #endif
343 
344   Tensor<float, 0> result1 = tensor.sum(reduction_axis);
345   Tensor<float, 0> result2 = tensor.sum(reduction_indices);
346   Tensor<float, 0> result3 = tensor.sum(reduction_list);
347 
348   float expected = 0.0f;
349   for (int i = 0; i < 2; ++i) {
350     for (int j = 0; j < 3; ++j) {
351       for (int k = 0; k < 5; ++k) {
352         for (int l = 0; l < 7; ++l) {
353           expected += tensor(i,j,k,l);
354         }
355       }
356     }
357   }
358   VERIFY_IS_APPROX(result1(), expected);
359   VERIFY_IS_APPROX(result2(), expected);
360   VERIFY_IS_APPROX(result3(), expected);
361 }
362 
363 
test_dim_check()364 static void test_dim_check()
365 {
366   Eigen::IndexList<Eigen::type2index<1>, int> dim1;
367   dim1.set(1, 2);
368   Eigen::IndexList<Eigen::type2index<1>, int> dim2;
369   dim2.set(1, 2);
370   VERIFY(dimensions_match(dim1, dim2));
371 }
372 
373 
374 #endif
375 
test_cxx11_tensor_index_list()376 void test_cxx11_tensor_index_list()
377 {
378 #ifdef EIGEN_HAS_INDEX_LIST
379   CALL_SUBTEST(test_static_index_list());
380   CALL_SUBTEST(test_type2index_list());
381   CALL_SUBTEST(test_type2indexpair_list());
382   CALL_SUBTEST(test_dynamic_index_list());
383   CALL_SUBTEST(test_mixed_index_list());
384   CALL_SUBTEST(test_dim_check());
385 #endif
386 }
387