// This file is part of Eigen, a lightweight C++ template library // for linear algebra. // // Copyright (C) 2014 Benoit Steiner <benoit.steiner.goog@gmail.com> // // This Source Code Form is subject to the terms of the Mozilla // Public License v. 2.0. If a copy of the MPL was not distributed // with this file, You can obtain one at http://mozilla.org/MPL/2.0/. #include "main.h" #include <Eigen/CXX11/Tensor> using Eigen::Tensor; using Eigen::RowMajor; static void test_1d() { Tensor<int, 1> vec1(6); Tensor<int, 1, RowMajor> vec2(6); vec1(0) = 4; vec2(0) = 0; vec1(1) = 8; vec2(1) = 1; vec1(2) = 15; vec2(2) = 2; vec1(3) = 16; vec2(3) = 3; vec1(4) = 23; vec2(4) = 4; vec1(5) = 42; vec2(5) = 5; int col_major[6]; int row_major[6]; memset(col_major, 0, 6*sizeof(int)); memset(row_major, 0, 6*sizeof(int)); TensorMap<Tensor<int, 1> > vec3(col_major, 6); TensorMap<Tensor<int, 1, RowMajor> > vec4(row_major, 6); vec3 = vec1; vec4 = vec2; VERIFY_IS_EQUAL(vec3(0), 4); VERIFY_IS_EQUAL(vec3(1), 8); VERIFY_IS_EQUAL(vec3(2), 15); VERIFY_IS_EQUAL(vec3(3), 16); VERIFY_IS_EQUAL(vec3(4), 23); VERIFY_IS_EQUAL(vec3(5), 42); VERIFY_IS_EQUAL(vec4(0), 0); VERIFY_IS_EQUAL(vec4(1), 1); VERIFY_IS_EQUAL(vec4(2), 2); VERIFY_IS_EQUAL(vec4(3), 3); VERIFY_IS_EQUAL(vec4(4), 4); VERIFY_IS_EQUAL(vec4(5), 5); vec1.setZero(); vec2.setZero(); vec1 = vec3; vec2 = vec4; VERIFY_IS_EQUAL(vec1(0), 4); VERIFY_IS_EQUAL(vec1(1), 8); VERIFY_IS_EQUAL(vec1(2), 15); VERIFY_IS_EQUAL(vec1(3), 16); VERIFY_IS_EQUAL(vec1(4), 23); VERIFY_IS_EQUAL(vec1(5), 42); VERIFY_IS_EQUAL(vec2(0), 0); VERIFY_IS_EQUAL(vec2(1), 1); VERIFY_IS_EQUAL(vec2(2), 2); VERIFY_IS_EQUAL(vec2(3), 3); VERIFY_IS_EQUAL(vec2(4), 4); VERIFY_IS_EQUAL(vec2(5), 5); } static void test_2d() { Tensor<int, 2> mat1(2,3); Tensor<int, 2, RowMajor> mat2(2,3); mat1(0,0) = 0; mat1(0,1) = 1; mat1(0,2) = 2; mat1(1,0) = 3; mat1(1,1) = 4; mat1(1,2) = 5; mat2(0,0) = 0; mat2(0,1) = 1; mat2(0,2) = 2; mat2(1,0) = 3; mat2(1,1) = 4; mat2(1,2) = 5; int col_major[6]; int row_major[6]; memset(col_major, 0, 6*sizeof(int)); memset(row_major, 0, 6*sizeof(int)); TensorMap<Tensor<int, 2> > mat3(row_major, 2, 3); TensorMap<Tensor<int, 2, RowMajor> > mat4(col_major, 2, 3); mat3 = mat1; mat4 = mat2; VERIFY_IS_EQUAL(mat3(0,0), 0); VERIFY_IS_EQUAL(mat3(0,1), 1); VERIFY_IS_EQUAL(mat3(0,2), 2); VERIFY_IS_EQUAL(mat3(1,0), 3); VERIFY_IS_EQUAL(mat3(1,1), 4); VERIFY_IS_EQUAL(mat3(1,2), 5); VERIFY_IS_EQUAL(mat4(0,0), 0); VERIFY_IS_EQUAL(mat4(0,1), 1); VERIFY_IS_EQUAL(mat4(0,2), 2); VERIFY_IS_EQUAL(mat4(1,0), 3); VERIFY_IS_EQUAL(mat4(1,1), 4); VERIFY_IS_EQUAL(mat4(1,2), 5); mat1.setZero(); mat2.setZero(); mat1 = mat3; mat2 = mat4; VERIFY_IS_EQUAL(mat1(0,0), 0); VERIFY_IS_EQUAL(mat1(0,1), 1); VERIFY_IS_EQUAL(mat1(0,2), 2); VERIFY_IS_EQUAL(mat1(1,0), 3); VERIFY_IS_EQUAL(mat1(1,1), 4); VERIFY_IS_EQUAL(mat1(1,2), 5); VERIFY_IS_EQUAL(mat2(0,0), 0); VERIFY_IS_EQUAL(mat2(0,1), 1); VERIFY_IS_EQUAL(mat2(0,2), 2); VERIFY_IS_EQUAL(mat2(1,0), 3); VERIFY_IS_EQUAL(mat2(1,1), 4); VERIFY_IS_EQUAL(mat2(1,2), 5); } static void test_3d() { Tensor<int, 3> mat1(2,3,7); Tensor<int, 3, RowMajor> mat2(2,3,7); int val = 0; for (int i = 0; i < 2; ++i) { for (int j = 0; j < 3; ++j) { for (int k = 0; k < 7; ++k) { mat1(i,j,k) = val; mat2(i,j,k) = val; val++; } } } int col_major[2*3*7]; int row_major[2*3*7]; memset(col_major, 0, 2*3*7*sizeof(int)); memset(row_major, 0, 2*3*7*sizeof(int)); TensorMap<Tensor<int, 3> > mat3(col_major, 2, 3, 7); TensorMap<Tensor<int, 3, RowMajor> > mat4(row_major, 2, 3, 7); mat3 = mat1; mat4 = mat2; val = 0; for (int i = 0; i < 2; ++i) { for (int j = 0; j < 3; ++j) { for (int k = 0; k < 7; ++k) { VERIFY_IS_EQUAL(mat3(i,j,k), val); VERIFY_IS_EQUAL(mat4(i,j,k), val); val++; } } } mat1.setZero(); mat2.setZero(); mat1 = mat3; mat2 = mat4; val = 0; for (int i = 0; i < 2; ++i) { for (int j = 0; j < 3; ++j) { for (int k = 0; k < 7; ++k) { VERIFY_IS_EQUAL(mat1(i,j,k), val); VERIFY_IS_EQUAL(mat2(i,j,k), val); val++; } } } } static void test_same_type() { Tensor<int, 1> orig_tensor(5); Tensor<int, 1> dest_tensor(5); orig_tensor.setRandom(); dest_tensor.setRandom(); int* orig_data = orig_tensor.data(); int* dest_data = dest_tensor.data(); dest_tensor = orig_tensor; VERIFY_IS_EQUAL(orig_tensor.data(), orig_data); VERIFY_IS_EQUAL(dest_tensor.data(), dest_data); for (int i = 0; i < 5; ++i) { VERIFY_IS_EQUAL(dest_tensor(i), orig_tensor(i)); } TensorFixedSize<int, Sizes<5> > orig_array; TensorFixedSize<int, Sizes<5> > dest_array; orig_array.setRandom(); dest_array.setRandom(); orig_data = orig_array.data(); dest_data = dest_array.data(); dest_array = orig_array; VERIFY_IS_EQUAL(orig_array.data(), orig_data); VERIFY_IS_EQUAL(dest_array.data(), dest_data); for (int i = 0; i < 5; ++i) { VERIFY_IS_EQUAL(dest_array(i), orig_array(i)); } int orig[5] = {1, 2, 3, 4, 5}; int dest[5] = {6, 7, 8, 9, 10}; TensorMap<Tensor<int, 1> > orig_map(orig, 5); TensorMap<Tensor<int, 1> > dest_map(dest, 5); orig_data = orig_map.data(); dest_data = dest_map.data(); dest_map = orig_map; VERIFY_IS_EQUAL(orig_map.data(), orig_data); VERIFY_IS_EQUAL(dest_map.data(), dest_data); for (int i = 0; i < 5; ++i) { VERIFY_IS_EQUAL(dest[i], i+1); } } static void test_auto_resize() { Tensor<int, 1> tensor1; Tensor<int, 1> tensor2(3); Tensor<int, 1> tensor3(5); Tensor<int, 1> tensor4(7); Tensor<int, 1> new_tensor(5); new_tensor.setRandom(); tensor1 = tensor2 = tensor3 = tensor4 = new_tensor; VERIFY_IS_EQUAL(tensor1.dimension(0), new_tensor.dimension(0)); VERIFY_IS_EQUAL(tensor2.dimension(0), new_tensor.dimension(0)); VERIFY_IS_EQUAL(tensor3.dimension(0), new_tensor.dimension(0)); VERIFY_IS_EQUAL(tensor4.dimension(0), new_tensor.dimension(0)); for (int i = 0; i < new_tensor.dimension(0); ++i) { VERIFY_IS_EQUAL(tensor1(i), new_tensor(i)); VERIFY_IS_EQUAL(tensor2(i), new_tensor(i)); VERIFY_IS_EQUAL(tensor3(i), new_tensor(i)); VERIFY_IS_EQUAL(tensor4(i), new_tensor(i)); } } static void test_compound_assign() { Tensor<int, 1> start_tensor(10); Tensor<int, 1> offset_tensor(10); start_tensor.setRandom(); offset_tensor.setRandom(); Tensor<int, 1> tensor = start_tensor; tensor += offset_tensor; for (int i = 0; i < 10; ++i) { VERIFY_IS_EQUAL(tensor(i), start_tensor(i) + offset_tensor(i)); } tensor = start_tensor; tensor -= offset_tensor; for (int i = 0; i < 10; ++i) { VERIFY_IS_EQUAL(tensor(i), start_tensor(i) - offset_tensor(i)); } tensor = start_tensor; tensor *= offset_tensor; for (int i = 0; i < 10; ++i) { VERIFY_IS_EQUAL(tensor(i), start_tensor(i) * offset_tensor(i)); } tensor = start_tensor; tensor /= offset_tensor; for (int i = 0; i < 10; ++i) { VERIFY_IS_EQUAL(tensor(i), start_tensor(i) / offset_tensor(i)); } } static void test_std_initializers_tensor() { #if EIGEN_HAS_VARIADIC_TEMPLATES Tensor<int, 1> a(3); a.setValues({0, 1, 2}); VERIFY_IS_EQUAL(a(0), 0); VERIFY_IS_EQUAL(a(1), 1); VERIFY_IS_EQUAL(a(2), 2); // It fills the top-left slice. a.setValues({10, 20}); VERIFY_IS_EQUAL(a(0), 10); VERIFY_IS_EQUAL(a(1), 20); VERIFY_IS_EQUAL(a(2), 2); // Chaining. Tensor<int, 1> a2(3); a2 = a.setValues({100, 200, 300}); VERIFY_IS_EQUAL(a(0), 100); VERIFY_IS_EQUAL(a(1), 200); VERIFY_IS_EQUAL(a(2), 300); VERIFY_IS_EQUAL(a2(0), 100); VERIFY_IS_EQUAL(a2(1), 200); VERIFY_IS_EQUAL(a2(2), 300); Tensor<int, 2> b(2, 3); b.setValues({{0, 1, 2}, {3, 4, 5}}); VERIFY_IS_EQUAL(b(0, 0), 0); VERIFY_IS_EQUAL(b(0, 1), 1); VERIFY_IS_EQUAL(b(0, 2), 2); VERIFY_IS_EQUAL(b(1, 0), 3); VERIFY_IS_EQUAL(b(1, 1), 4); VERIFY_IS_EQUAL(b(1, 2), 5); // It fills the top-left slice. b.setValues({{10, 20}, {30}}); VERIFY_IS_EQUAL(b(0, 0), 10); VERIFY_IS_EQUAL(b(0, 1), 20); VERIFY_IS_EQUAL(b(0, 2), 2); VERIFY_IS_EQUAL(b(1, 0), 30); VERIFY_IS_EQUAL(b(1, 1), 4); VERIFY_IS_EQUAL(b(1, 2), 5); Eigen::Tensor<int, 3> c(3, 2, 4); c.setValues({{{0, 1, 2, 3}, {4, 5, 6, 7}}, {{10, 11, 12, 13}, {14, 15, 16, 17}}, {{20, 21, 22, 23}, {24, 25, 26, 27}}}); VERIFY_IS_EQUAL(c(0, 0, 0), 0); VERIFY_IS_EQUAL(c(0, 0, 1), 1); VERIFY_IS_EQUAL(c(0, 0, 2), 2); VERIFY_IS_EQUAL(c(0, 0, 3), 3); VERIFY_IS_EQUAL(c(0, 1, 0), 4); VERIFY_IS_EQUAL(c(0, 1, 1), 5); VERIFY_IS_EQUAL(c(0, 1, 2), 6); VERIFY_IS_EQUAL(c(0, 1, 3), 7); VERIFY_IS_EQUAL(c(1, 0, 0), 10); VERIFY_IS_EQUAL(c(1, 0, 1), 11); VERIFY_IS_EQUAL(c(1, 0, 2), 12); VERIFY_IS_EQUAL(c(1, 0, 3), 13); VERIFY_IS_EQUAL(c(1, 1, 0), 14); VERIFY_IS_EQUAL(c(1, 1, 1), 15); VERIFY_IS_EQUAL(c(1, 1, 2), 16); VERIFY_IS_EQUAL(c(1, 1, 3), 17); VERIFY_IS_EQUAL(c(2, 0, 0), 20); VERIFY_IS_EQUAL(c(2, 0, 1), 21); VERIFY_IS_EQUAL(c(2, 0, 2), 22); VERIFY_IS_EQUAL(c(2, 0, 3), 23); VERIFY_IS_EQUAL(c(2, 1, 0), 24); VERIFY_IS_EQUAL(c(2, 1, 1), 25); VERIFY_IS_EQUAL(c(2, 1, 2), 26); VERIFY_IS_EQUAL(c(2, 1, 3), 27); #endif // EIGEN_HAS_VARIADIC_TEMPLATES } void test_cxx11_tensor_assign() { CALL_SUBTEST(test_1d()); CALL_SUBTEST(test_2d()); CALL_SUBTEST(test_3d()); CALL_SUBTEST(test_same_type()); CALL_SUBTEST(test_auto_resize()); CALL_SUBTEST(test_compound_assign()); CALL_SUBTEST(test_std_initializers_tensor()); }