108 lines
3.2 KiB
C++
108 lines
3.2 KiB
C++
|
// Copyright (C) 2008-2013 National ICT Australia (NICTA)
|
||
|
|
//
|
||
|
|
// This Source Code Form is subject to the terms of the Mozilla Public
|
||
|
|
// License, v. 2.0. If a copy of the MPL was not distributed with this
|
||
|
|
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
|
||
|
|
// -------------------------------------------------------------------
|
||
|
|
//
|
||
|
|
// Written by Conrad Sanderson - http://conradsanderson.id.au
|
||
|
|
|
||
|
|
|
||
|
|
//! \addtogroup diagview
|
||
|
|
//! @{
|
||
|
|
|
||
|
|
|
||
|
|
//! Class for storing data required to extract and set the diagonals of a matrix
|
||
|
|
template<typename eT>
|
||
|
|
class diagview : public Base<eT, diagview<eT> >
|
||
|
|
{
|
||
|
|
public:
|
||
|
|
|
||
|
|
typedef eT elem_type;
|
||
|
|
typedef typename get_pod_type<eT>::result pod_type;
|
||
|
|
|
||
|
|
arma_aligned const Mat<eT>& m;
|
||
|
|
|
||
|
|
static const bool is_row = false;
|
||
|
|
static const bool is_col = true;
|
||
|
|
|
||
|
|
const uword row_offset;
|
||
|
|
const uword col_offset;
|
||
|
|
|
||
|
|
const uword n_rows; // equal to n_elem
|
||
|
|
const uword n_elem;
|
||
|
|
|
||
|
|
static const uword n_cols = 1;
|
||
|
|
|
||
|
|
|
||
|
|
protected:
|
||
|
|
|
||
|
|
arma_inline diagview(const Mat<eT>& in_m, const uword in_row_offset, const uword in_col_offset, const uword len);
|
||
|
|
|
||
|
|
|
||
|
|
public:
|
||
|
|
|
||
|
|
inline ~diagview();
|
||
|
|
|
||
|
|
inline void operator=(const diagview& x);
|
||
|
|
|
||
|
|
inline void operator+=(const eT val);
|
||
|
|
inline void operator-=(const eT val);
|
||
|
|
inline void operator*=(const eT val);
|
||
|
|
inline void operator/=(const eT val);
|
||
|
|
|
||
|
|
template<typename T1> inline void operator= (const Base<eT,T1>& x);
|
||
|
|
template<typename T1> inline void operator+=(const Base<eT,T1>& x);
|
||
|
|
template<typename T1> inline void operator-=(const Base<eT,T1>& x);
|
||
|
|
template<typename T1> inline void operator%=(const Base<eT,T1>& x);
|
||
|
|
template<typename T1> inline void operator/=(const Base<eT,T1>& x);
|
||
|
|
|
||
|
|
|
||
|
|
arma_inline eT at_alt (const uword ii) const;
|
||
|
|
|
||
|
|
arma_inline eT& operator[](const uword ii);
|
||
|
|
arma_inline eT operator[](const uword ii) const;
|
||
|
|
|
||
|
|
arma_inline eT& at(const uword ii);
|
||
|
|
arma_inline eT at(const uword ii) const;
|
||
|
|
|
||
|
|
arma_inline eT& operator()(const uword ii);
|
||
|
|
arma_inline eT operator()(const uword ii) const;
|
||
|
|
|
||
|
|
arma_inline eT& at(const uword in_n_row, const uword);
|
||
|
|
arma_inline eT at(const uword in_n_row, const uword) const;
|
||
|
|
|
||
|
|
arma_inline eT& operator()(const uword in_n_row, const uword in_n_col);
|
||
|
|
arma_inline eT operator()(const uword in_n_row, const uword in_n_col) const;
|
||
|
|
|
||
|
|
|
||
|
|
arma_inline const Op<diagview<eT>,op_htrans> t() const;
|
||
|
|
arma_inline const Op<diagview<eT>,op_htrans> ht() const;
|
||
|
|
arma_inline const Op<diagview<eT>,op_strans> st() const;
|
||
|
|
|
||
|
|
inline void fill(const eT val);
|
||
|
|
inline void zeros();
|
||
|
|
inline void ones();
|
||
|
|
inline void randu();
|
||
|
|
inline void randn();
|
||
|
|
|
||
|
|
inline static void extract(Mat<eT>& out, const diagview& in);
|
||
|
|
|
||
|
|
inline static void plus_inplace(Mat<eT>& out, const diagview& in);
|
||
|
|
inline static void minus_inplace(Mat<eT>& out, const diagview& in);
|
||
|
|
inline static void schur_inplace(Mat<eT>& out, const diagview& in);
|
||
|
|
inline static void div_inplace(Mat<eT>& out, const diagview& in);
|
||
|
|
|
||
|
|
|
||
|
|
private:
|
||
|
|
|
||
|
|
friend class Mat<eT>;
|
||
|
|
friend class subview<eT>;
|
||
|
|
|
||
|
|
diagview();
|
||
|
|
//diagview(const diagview&); // making this private causes an error under gcc 4.1/4.2, but not 4.3
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
//! @}
|