ViennaCL - The Vienna Computing Library  1.5.2
Public Types | Public Member Functions
matrix_slice< MatrixType > Class Template Reference

Class for representing strided submatrices of a bigger matrix A. More...

#include <forwards.h>

Inheritance diagram for matrix_slice< MatrixType >:
matrix_base< MatrixType::cpu_value_type, MatrixType::orientation_functor >

Public Types

typedef
MatrixType::orientation_category 
orientation_category
 
typedef MatrixType::value_type value_type
 
typedef
viennacl::result_of::cpu_value_type
< value_type >::type 
cpu_value_type
 
typedef range::size_type size_type
 
typedef range::difference_type difference_type
 
typedef value_type reference
 
typedef const value_typeconst_reference
 
- Public Types inherited from matrix_base< MatrixType::cpu_value_type, MatrixType::orientation_functor >
typedef matrix_iterator
< row_iteration, self_type
iterator1
 
typedef matrix_iterator
< col_iteration, self_type
iterator2
 
typedef scalar
< MatrixType::cpu_value_type > 
value_type
 
typedef MatrixType::cpu_value_type cpu_value_type
 
typedef vcl_size_t size_type
 
typedef vcl_ptrdiff_t difference_type
 
typedef
viennacl::backend::mem_handle 
handle_type
 
typedef
MatrixType::orientation_functor 
orientation_functor
 
typedef
MatrixType::orientation_functor::orientation_category 
orientation_category
 

Public Member Functions

 matrix_slice (MatrixType &A, slice const &row_slice, slice const &col_slice)
 
- Public Member Functions inherited from matrix_base< MatrixType::cpu_value_type, MatrixType::orientation_functor >
 matrix_base ()
 The default constructor. Does not allocate any memory. More...
 
 matrix_base (size_type rows, size_type columns, viennacl::context ctx=viennacl::context())
 Creates the matrix with the given dimensions. More...
 
 matrix_base (viennacl::backend::mem_handle &h, size_type mat_size1, size_type mat_start1, difference_type mat_stride1, size_type mat_internal_size1, size_type mat_size2, size_type mat_start2, difference_type mat_stride2, size_type mat_internal_size2)
 Constructor for creating a matrix_range or matrix_stride from some other matrix/matrix_range/matrix_stride. More...
 
 matrix_base (matrix_expression< const LHS, const RHS, OP > const &proxy)
 
 matrix_base (MatrixType::cpu_value_type *ptr_to_mem, viennacl::memory_types mem_type, size_type mat_size1, size_type mat_start1, difference_type mat_stride1, size_type mat_internal_size1, size_type mat_size2, size_type mat_start2, difference_type mat_stride2, size_type mat_internal_size2)
 
self_typeoperator= (const self_type &other)
 
self_typeoperator= (const matrix_expression< const LHS, const RHS, OP > &proxy)
 Creates the matrix from the supplied random matrix. More...
 
self_typeoperator= (const matrix_expression< const self_type, const self_type, op_trans > &proxy)
 
self_typeoperator= (identity_matrix< MatrixType::cpu_value_type > const &m)
 Assigns the supplied identity matrix to the matrix. More...
 
self_typeoperator= (zero_matrix< MatrixType::cpu_value_type > const &m)
 Assigns the supplied zero matrix to the matrix. More...
 
self_typeoperator= (scalar_matrix< MatrixType::cpu_value_type > const &m)
 Assigns the supplied scalar vector to the matrix. More...
 
self_typeoperator+= (const matrix_expression< const LHS, const RHS, OP > &proxy)
 
self_typeoperator+= (const self_type &other)
 
self_typeoperator-= (const matrix_expression< const LHS, const RHS, OP > &proxy)
 
self_typeoperator-= (const self_type &other)
 
entry_proxy
< MatrixType::cpu_value_type > 
operator() (size_type row_index, size_type col_index)
 Read-write access to a single element of the matrix/matrix_range/matrix_slice. More...
 
const_entry_proxy
< MatrixType::cpu_value_type > 
operator() (size_type row_index, size_type col_index) const
 Read access to a single element of the matrix/matrix_range/matrix_slice. More...
 
self_typeoperator*= (MatrixType::cpu_value_typeval)
 Scales a matrix by a CPU scalar value. More...
 
self_typeoperator/= (MatrixType::cpu_value_typeval)
 Scales this matrix by a CPU scalar value. More...
 
matrix_expression< const
self_type, const
MatrixType::cpu_value_type,
op_mult
operator- () const
 Sign flip for the matrix. Emulated to be equivalent to -1.0 * matrix. More...
 
size_type size1 () const
 Returns the number of rows. More...
 
size_type size2 () const
 Returns the number of columns. More...
 
size_type start1 () const
 Returns the number of rows. More...
 
size_type start2 () const
 Returns the number of columns. More...
 
size_type stride1 () const
 Returns the number of rows. More...
 
size_type stride2 () const
 Returns the number of columns. More...
 
void clear ()
 Resets all entries to zero. More...
 
size_type internal_size1 () const
 Returns the internal number of rows. Usually required for launching OpenCL kernels only. More...
 
size_type internal_size2 () const
 Returns the internal number of columns. Usually required for launching OpenCL kernels only. More...
 
size_type internal_size () const
 Returns the total amount of allocated memory in multiples of sizeof(SCALARTYPE) More...
 
handle_typehandle ()
 Returns the OpenCL handle, non-const-version. More...
 
const handle_typehandle () const
 Returns the OpenCL handle, const-version. More...
 
viennacl::memory_types memory_domain () const
 

Additional Inherited Members

- Static Public Attributes inherited from matrix_base< MatrixType::cpu_value_type, MatrixType::orientation_functor >
static const size_type alignment
 
- Protected Member Functions inherited from matrix_base< MatrixType::cpu_value_type, MatrixType::orientation_functor >
void set_handle (viennacl::backend::mem_handle const &h)
 
void switch_memory_context (viennacl::context new_ctx)
 
void resize (size_type rows, size_type columns, bool preserve=true)
 Resizes the matrix. Existing entries can be preserved, but. More...
 

Detailed Description

template<typename MatrixType>
class viennacl::matrix_slice< MatrixType >

Class for representing strided submatrices of a bigger matrix A.

In MATLAB notation, this could for example refer to the submatrix A(3:2:8, 6:3:16) of a matrix A.

Member Typedef Documentation

typedef const value_type& const_reference
typedef MatrixType::orientation_category orientation_category
typedef MatrixType::value_type value_type

Constructor & Destructor Documentation

matrix_slice ( MatrixType &  A,
slice const &  row_slice,
slice const &  col_slice 
)
inline

The documentation for this class was generated from the following files: