NAME¶

tensor4 - a fouth order tensor

SYNOPSYS¶

The tensor4 class defines a fourth tensor where indices varie from zero to 2 (aka 3D physical space).

IMPLEMENTATION¶

template<class T>
class tensor4_basic {
public:

  typedef size_t size_type;
  typedef T      element_type;

// allocators:

  tensor4_basic (const T& init_val = 0);
  tensor4_basic (const tensor4_basic<T>& a);

// affectation:

  tensor4_basic<T>& operator= (const tensor4_basic<T>& a);
  tensor4_basic<T>& operator= (const T& val);

// accessors:

  T&       operator()(size_type i, size_type j, size_type k, size_type l);
  const T& operator()(size_type i, size_type j, size_type k, size_type l) const;

// data:
protected:
  T _x [3][3][3][3];
};
typedef tensor4_basic<Float> tensor4;