diff options
author | Christian Seiler <christian@iwakd.de> | 2014-06-04 20:44:22 +0200 |
---|---|---|
committer | Christian Seiler <christian@iwakd.de> | 2014-06-04 20:44:22 +0200 |
commit | 96cb58fa3b83448fcb2af2d131434a7ac10b915c (patch) | |
tree | 531c23ae8ad7b265dc256d6dcaf178ea2eec231c /unsupported/Eigen/CXX11/src/TensorSymmetry | |
parent | ea9943352368b990d27ba22eb8670287cf96302d (diff) |
unsupported/TensorSymmetry: factor out completely from Tensor module
Remove the symCoeff() method of the the Tensor module and move the
functionality into a new operator() of the symmetry classes. This makes
the Tensor module now completely self-contained without symmetry
support (even though previously it was only a forward declaration and a
otherwise harmless trivial templated method) and also removes the
inconsistency with the rest of eigen w.r.t. the method's naming scheme.
Diffstat (limited to 'unsupported/Eigen/CXX11/src/TensorSymmetry')
3 files changed, 27 insertions, 1 deletions
diff --git a/unsupported/Eigen/CXX11/src/TensorSymmetry/DynamicSymmetry.h b/unsupported/Eigen/CXX11/src/TensorSymmetry/DynamicSymmetry.h index 0329278a9..bc4f2025f 100644 --- a/unsupported/Eigen/CXX11/src/TensorSymmetry/DynamicSymmetry.h +++ b/unsupported/Eigen/CXX11/src/TensorSymmetry/DynamicSymmetry.h @@ -50,6 +50,19 @@ class DynamicSGroup inline int globalFlags() const { return m_globalFlags; } inline std::size_t size() const { return m_elements.size(); } + + template<typename Tensor_, typename... IndexTypes> + inline internal::tensor_symmetry_value_setter<Tensor_, DynamicSGroup> operator()(Tensor_& tensor, typename Tensor_::Index firstIndex, IndexTypes... otherIndices) const + { + static_assert(sizeof...(otherIndices) + 1 == Tensor_::NumIndices, "Number of indices used to access a tensor coefficient must be equal to the rank of the tensor."); + return operator()(tensor, std::array<typename Tensor_::Index, Tensor_::NumIndices>{{firstIndex, otherIndices...}}); + } + + template<typename Tensor_> + inline internal::tensor_symmetry_value_setter<Tensor_, DynamicSGroup> operator()(Tensor_& tensor, std::array<typename Tensor_::Index, Tensor_::NumIndices> const& indices) const + { + return internal::tensor_symmetry_value_setter<Tensor_, DynamicSGroup>(tensor, *this, indices); + } private: struct GroupElement { std::vector<int> representation; diff --git a/unsupported/Eigen/CXX11/src/TensorSymmetry/StaticSymmetry.h b/unsupported/Eigen/CXX11/src/TensorSymmetry/StaticSymmetry.h index 0eb468fc0..942293bd7 100644 --- a/unsupported/Eigen/CXX11/src/TensorSymmetry/StaticSymmetry.h +++ b/unsupported/Eigen/CXX11/src/TensorSymmetry/StaticSymmetry.h @@ -212,6 +212,19 @@ class StaticSGroup return ge::count; } constexpr static inline int globalFlags() { return group_elements::global_flags; } + + template<typename Tensor_, typename... IndexTypes> + inline internal::tensor_symmetry_value_setter<Tensor_, StaticSGroup<Gen...>> operator()(Tensor_& tensor, typename Tensor_::Index firstIndex, IndexTypes... otherIndices) const + { + static_assert(sizeof...(otherIndices) + 1 == Tensor_::NumIndices, "Number of indices used to access a tensor coefficient must be equal to the rank of the tensor."); + return operator()(tensor, std::array<typename Tensor_::Index, Tensor_::NumIndices>{{firstIndex, otherIndices...}}); + } + + template<typename Tensor_> + inline internal::tensor_symmetry_value_setter<Tensor_, StaticSGroup<Gen...>> operator()(Tensor_& tensor, std::array<typename Tensor_::Index, Tensor_::NumIndices> const& indices) const + { + return internal::tensor_symmetry_value_setter<Tensor_, StaticSGroup<Gen...>>(tensor, *this, indices); + } }; } // end namespace Eigen diff --git a/unsupported/Eigen/CXX11/src/TensorSymmetry/Symmetry.h b/unsupported/Eigen/CXX11/src/TensorSymmetry/Symmetry.h index f1ccc33ef..879d6cd77 100644 --- a/unsupported/Eigen/CXX11/src/TensorSymmetry/Symmetry.h +++ b/unsupported/Eigen/CXX11/src/TensorSymmetry/Symmetry.h @@ -293,7 +293,7 @@ struct tensor_symmetry_calculate_flags } }; -template<typename Tensor_, typename Symmetry_, int Flags> +template<typename Tensor_, typename Symmetry_, int Flags = 0> class tensor_symmetry_value_setter { public: |