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author | Benoit Steiner <benoit.steiner.goog@gmail.com> | 2014-10-02 10:39:36 -0700 |
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committer | Benoit Steiner <benoit.steiner.goog@gmail.com> | 2014-10-02 10:39:36 -0700 |
commit | 8b2afe33a165ff0cc5a7afd14fcfb06cdf703235 (patch) | |
tree | ba31262fe5c38db9f6a1a422644f0b7cb38b0f2c /unsupported/test/cxx11_tensor_forced_eval.cpp | |
parent | 5cc23199be743d0d1be85d709eb366e67e87a262 (diff) |
Fixes for the forced evaluation of tensor expressions
More tests
Diffstat (limited to 'unsupported/test/cxx11_tensor_forced_eval.cpp')
-rw-r--r-- | unsupported/test/cxx11_tensor_forced_eval.cpp | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/unsupported/test/cxx11_tensor_forced_eval.cpp b/unsupported/test/cxx11_tensor_forced_eval.cpp new file mode 100644 index 000000000..529584a7b --- /dev/null +++ b/unsupported/test/cxx11_tensor_forced_eval.cpp @@ -0,0 +1,51 @@ +// 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/Core> +#include <Eigen/CXX11/Tensor> + +using Eigen::MatrixXf; +using Eigen::Tensor; + +static void test_simple() +{ + MatrixXf m1(3,3); + MatrixXf m2(3,3); + m1.setRandom(); + m2.setRandom(); + + TensorMap<Tensor<float, 2>> mat1(m1.data(), 3,3); + TensorMap<Tensor<float, 2>> mat2(m2.data(), 3,3); + + Tensor<float, 2> mat3(3,3); + mat3 = mat1; + + typedef Tensor<float, 1>::DimensionPair DimPair; + Eigen::array<DimPair, 1> dims({{DimPair(1, 0)}}); + + mat3 = mat3.contract(mat2, dims).eval(); + + VERIFY_IS_APPROX(mat3(0, 0), (m1*m2).eval()(0,0)); + VERIFY_IS_APPROX(mat3(0, 1), (m1*m2).eval()(0,1)); + VERIFY_IS_APPROX(mat3(0, 2), (m1*m2).eval()(0,2)); + VERIFY_IS_APPROX(mat3(1, 0), (m1*m2).eval()(1,0)); + VERIFY_IS_APPROX(mat3(1, 1), (m1*m2).eval()(1,1)); + VERIFY_IS_APPROX(mat3(1, 2), (m1*m2).eval()(1,2)); + VERIFY_IS_APPROX(mat3(2, 0), (m1*m2).eval()(2,0)); + VERIFY_IS_APPROX(mat3(2, 1), (m1*m2).eval()(2,1)); + VERIFY_IS_APPROX(mat3(2, 2), (m1*m2).eval()(2,2)); +} + + +void test_cxx11_tensor_forced_eval() +{ + CALL_SUBTEST(test_simple()); +} |