101 lines
3.1 KiB
C++
101 lines
3.1 KiB
C++
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// Copyright (C) 2015 National ICT Australia (NICTA)
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//
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// This Source Code Form is subject to the terms of the Mozilla Public
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// License, v. 2.0. If a copy of the MPL was not distributed with this
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// file, You can obtain one at http://mozilla.org/MPL/2.0/.
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// -------------------------------------------------------------------
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//
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// Written by Conrad Sanderson - http://conradsanderson.id.au
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//! \addtogroup spdiagview
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//! @{
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//! Class for storing data required to extract and set the diagonals of a sparse matrix
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template<typename eT>
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class spdiagview : public Base<eT, spdiagview<eT> >
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{
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public:
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typedef eT elem_type;
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typedef typename get_pod_type<eT>::result pod_type;
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arma_aligned const SpMat<eT>& m;
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static const bool is_row = false;
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static const bool is_col = true;
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const uword row_offset;
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const uword col_offset;
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const uword n_rows; // equal to n_elem
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const uword n_elem;
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static const uword n_cols = 1;
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protected:
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arma_inline spdiagview(const SpMat<eT>& in_m, const uword in_row_offset, const uword in_col_offset, const uword len);
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public:
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inline ~spdiagview();
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inline void operator=(const spdiagview& x);
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inline void operator+=(const eT val);
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inline void operator-=(const eT val);
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inline void operator*=(const eT val);
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inline void operator/=(const eT val);
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template<typename T1> inline void operator= (const Base<eT,T1>& x);
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template<typename T1> inline void operator+=(const Base<eT,T1>& x);
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template<typename T1> inline void operator-=(const Base<eT,T1>& x);
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template<typename T1> inline void operator%=(const Base<eT,T1>& x);
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template<typename T1> inline void operator/=(const Base<eT,T1>& x);
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template<typename T1> inline void operator= (const SpBase<eT,T1>& x);
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template<typename T1> inline void operator+=(const SpBase<eT,T1>& x);
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template<typename T1> inline void operator-=(const SpBase<eT,T1>& x);
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template<typename T1> inline void operator%=(const SpBase<eT,T1>& x);
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template<typename T1> inline void operator/=(const SpBase<eT,T1>& x);
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inline eT at_alt (const uword ii) const;
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inline SpValProxy< SpMat<eT> > operator[](const uword ii);
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inline eT operator[](const uword ii) const;
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inline SpValProxy< SpMat<eT> > at(const uword ii);
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inline eT at(const uword ii) const;
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inline SpValProxy< SpMat<eT> > operator()(const uword ii);
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inline eT operator()(const uword ii) const;
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inline SpValProxy< SpMat<eT> > at(const uword in_n_row, const uword);
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inline eT at(const uword in_n_row, const uword) const;
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inline SpValProxy< SpMat<eT> > operator()(const uword in_n_row, const uword in_n_col);
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inline eT operator()(const uword in_n_row, const uword in_n_col) const;
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inline void fill(const eT val);
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inline void zeros();
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inline void ones();
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inline void randu();
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inline void randn();
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inline static void extract(Mat<eT>& out, const spdiagview& in);
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private:
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friend class SpMat<eT>;
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spdiagview();
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};
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//! @}
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