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author | Jaron Kent-Dobias <jaron@kent-dobias.com> | 2021-01-07 11:23:20 +0100 |
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committer | Jaron Kent-Dobias <jaron@kent-dobias.com> | 2021-01-07 11:23:20 +0100 |
commit | 2316044fd02bf22b5b6c0f414874dada2c7603e4 (patch) | |
tree | 4a44c9324a58bfa4d297e254aaf2cc9e63473663 /tensor.hpp | |
parent | 71e7c3a86a8ea99045f564a52535ed08c4172451 (diff) | |
download | code-2316044fd02bf22b5b6c0f414874dada2c7603e4.tar.gz code-2316044fd02bf22b5b6c0f414874dada2c7603e4.tar.bz2 code-2316044fd02bf22b5b6c0f414874dada2c7603e4.zip |
Implemented some lazy optimizations and C++17isms.
Diffstat (limited to 'tensor.hpp')
-rw-r--r-- | tensor.hpp | 8 |
1 files changed, 4 insertions, 4 deletions
@@ -55,12 +55,12 @@ contractDown(const Eigen::Tensor<Scalar, 2>& J, const Eigen::Matrix<Scalar, Eige return Eigen::Map<const Eigen::Matrix<Scalar, Eigen::Dynamic, Eigen::Dynamic>>(J.data(), z.size(), z.size()); } +const std::array<Eigen::IndexPair<int>, 1> ip00 = {Eigen::IndexPair<int>(0, 0)}; + template <class Scalar, int r> Eigen::Matrix<Scalar, Eigen::Dynamic, Eigen::Dynamic> contractDown(const Eigen::Tensor<Scalar, r>& J, const Eigen::Matrix<Scalar, Eigen::Dynamic, 1>& z) { - Eigen::Tensor<Scalar, 1> zT = - Eigen::TensorMap<Eigen::Tensor<const Scalar, 1>>(z.data(), {z.size()}); - std::array<Eigen::IndexPair<int>, 1> ip = {Eigen::IndexPair<int>(0, 0)}; - Eigen::Tensor<Scalar, r - 1> Jz = J.contract(zT, ip); + Eigen::Tensor<Scalar, 1> zT = Eigen::TensorMap<Eigen::Tensor<const Scalar, 1>>(z.data(), {z.size()}); + Eigen::Tensor<Scalar, r - 1> Jz = J.contract(zT, ip00); return contractDown(Jz, z); } |