Extended support for Tensors:

  * Added ability to map a region of the memory to a tensor
  * Added basic support for unary and binary coefficient wise expressions, such as addition or square root
  * Provided an emulation layer to make it possible to compile the code with compilers (such as nvcc) that don't support cxx11.

1 files changed, 30 insertions, 22 deletions

diff --git a/unsupported/Eigen/CXX11/src/Tensor/TensorStorage.h b/unsupported/Eigen/CXX11/src/Tensor/TensorStorage.h
index a34600ee6..503d7cfd6 100644
--- a/unsupported/Eigen/CXX11/src/Tensor/TensorStorage.h
+++ b/unsupported/Eigen/CXX11/src/Tensor/TensorStorage.h
@@ -37,14 +37,19 @@ template<typename T, std::size_t NumIndices_, int Options_>
 class TensorStorage<T, NumIndices_, Dynamic, Options_, void>
   : public TensorStorage<T, NumIndices_, Dynamic, Options_, typename internal::gen_numeric_list_repeated<DenseIndex, NumIndices_, Dynamic>::type>
 {
-    typedef TensorStorage<T, NumIndices_, Dynamic, Options_, typename internal::gen_numeric_list_repeated<DenseIndex, NumIndices_, Dynamic>::type> Base_;
+  typedef TensorStorage<T, NumIndices_, Dynamic, Options_, typename internal::gen_numeric_list_repeated<DenseIndex, NumIndices_, Dynamic>::type> Base_;
+
   public:
-    TensorStorage() = default;
-    TensorStorage(const TensorStorage<T, NumIndices_, Dynamic, Options_, void>&) = default;
-    TensorStorage(TensorStorage<T, NumIndices_, Dynamic, Options_, void>&&) = default;
+    TensorStorage() { }
+    TensorStorage(const TensorStorage<T, NumIndices_, Dynamic, Options_, void>& other) : Base_(other) { }
+
+#ifdef EIGEN_HAVE_RVALUE_REFERENCES
+//    TensorStorage(TensorStorage<T, NumIndices_, Dynamic, Options_, void>&&) = default;
+#endif
     TensorStorage(internal::constructor_without_unaligned_array_assert) : Base_(internal::constructor_without_unaligned_array_assert()) {}
-    TensorStorage(DenseIndex size, const std::array<DenseIndex, NumIndices_>& dimensions) : Base_(size, dimensions) {}
-    TensorStorage<T, NumIndices_, Dynamic, Options_, void>& operator=(const TensorStorage<T, NumIndices_, Dynamic, Options_, void>&) = default;
+    TensorStorage(DenseIndex size, const array<DenseIndex, NumIndices_>& dimensions) : Base_(size, dimensions) {}
+
+  //      TensorStorage<T, NumIndices_, Dynamic, Options_, void>& operator=(const TensorStorage<T, NumIndices_, Dynamic, Options_, void>&) = default;
 };
 
 // pure dynamic
@@ -52,17 +57,17 @@ template<typename T, std::size_t NumIndices_, int Options_>
 class TensorStorage<T, NumIndices_, Dynamic, Options_, typename internal::gen_numeric_list_repeated<DenseIndex, NumIndices_, Dynamic>::type>
 {
     T *m_data;
-    std::array<DenseIndex, NumIndices_> m_dimensions;
+    array<DenseIndex, NumIndices_> m_dimensions;
 
     typedef TensorStorage<T, NumIndices_, Dynamic, Options_, typename internal::gen_numeric_list_repeated<DenseIndex, NumIndices_, Dynamic>::type> Self_;
   public:
-    TensorStorage() : m_data(0), m_dimensions(internal::template repeat<NumIndices_, DenseIndex>(0)) {}
+  TensorStorage() : m_data(0), m_dimensions() {}
     TensorStorage(internal::constructor_without_unaligned_array_assert)
       : m_data(0), m_dimensions(internal::template repeat<NumIndices_, DenseIndex>(0)) {}
-    TensorStorage(DenseIndex size, const std::array<DenseIndex, NumIndices_>& dimensions)
-      : m_data(internal::conditional_aligned_new_auto<T,(Options_&DontAlign)==0>(size)), m_dimensions(dimensions)
-    { EIGEN_INTERNAL_TENSOR_STORAGE_CTOR_PLUGIN }
-    TensorStorage(const Self_& other)
+    TensorStorage(DenseIndex size, const array<DenseIndex, NumIndices_>& dimensions)
+        : m_data(internal::conditional_aligned_new_auto<T,(Options_&DontAlign)==0>(size)), m_dimensions(dimensions)
+      { EIGEN_INTERNAL_TENSOR_STORAGE_CTOR_PLUGIN }
+      TensorStorage(const Self_& other)
       : m_data(internal::conditional_aligned_new_auto<T,(Options_&DontAlign)==0>(internal::array_prod(other.m_dimensions)))
       , m_dimensions(other.m_dimensions)
     {
@@ -76,28 +81,34 @@ class TensorStorage<T, NumIndices_, Dynamic, Options_, typename internal::gen_nu
       }
       return *this;
     }
-    TensorStorage(Self_&& other)
+
+#ifdef EIGEN_HAVE_RVALUE_REFERENCES
+/*    TensorStorage(Self_&& other)
       : m_data(std::move(other.m_data)), m_dimensions(std::move(other.m_dimensions))
     {
       other.m_data = nullptr;
     }
+*/
     Self_& operator=(Self_&& other)
     {
       using std::swap;
       swap(m_data, other.m_data);
       swap(m_dimensions, other.m_dimensions);
       return *this;
-    }
+      }
+#endif
+
     ~TensorStorage() { internal::conditional_aligned_delete_auto<T,(Options_&DontAlign)==0>(m_data, internal::array_prod(m_dimensions)); }
     void swap(Self_& other)
     { std::swap(m_data,other.m_data); std::swap(m_dimensions,other.m_dimensions); }
-    std::array<DenseIndex, NumIndices_> dimensions(void) const {return m_dimensions;}
-    void conservativeResize(DenseIndex size, const std::array<DenseIndex, NumIndices_>& nbDimensions)
+  const array<DenseIndex, NumIndices_>& dimensions() const {return m_dimensions;}
+
+  void conservativeResize(DenseIndex size, const array<DenseIndex, NumIndices_>& nbDimensions)
     {
       m_data = internal::conditional_aligned_realloc_new_auto<T,(Options_&DontAlign)==0>(m_data, size, internal::array_prod(m_dimensions));
       m_dimensions = nbDimensions;
     }
-    void resize(DenseIndex size, const std::array<DenseIndex, NumIndices_>& nbDimensions)
+    void resize(DenseIndex size, const array<DenseIndex, NumIndices_>& nbDimensions)
     {
       if(size != internal::array_prod(m_dimensions))
       {
@@ -110,8 +121,9 @@ class TensorStorage<T, NumIndices_, Dynamic, Options_, typename internal::gen_nu
       }
       m_dimensions = nbDimensions;
     }
-    const T *data() const { return m_data; }
+
     T *data() { return m_data; }
+    const T *data() const { return m_data; }
 };
 
 // TODO: implement fixed-size stuff
@@ -119,7 +131,3 @@ class TensorStorage<T, NumIndices_, Dynamic, Options_, typename internal::gen_nu
 } // end namespace Eigen
 
 #endif // EIGEN_CXX11_TENSOR_TENSORSTORAGE_H
-
-/*
- * kate: space-indent on; indent-width 2; mixedindent off; indent-mode cstyle;
- */