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/* $Header: /var/lib/cvs/dynare_cpp/sylv/cc/BlockDiagonal.h,v 1.1.1.1 2004/06/04 13:00:20 kamenik Exp $ */
/* Tag $Name: $ */
#ifndef BLOCK_DIAGONAL_H
#define BLOCK_DIAGONAL_H
#include "QuasiTriangular.h"
class BlockDiagonal : public QuasiTriangular {
int* const row_len;
int* const col_len;
public:
BlockDiagonal(const double* d, int d_size);
BlockDiagonal(int p, const BlockDiagonal& b);
BlockDiagonal(const BlockDiagonal& b);
BlockDiagonal(const QuasiTriangular& t);
const BlockDiagonal& operator=(const QuasiTriangular& t)
{GeneralMatrix::operator=(t); return *this;}
const BlockDiagonal& operator=(const BlockDiagonal& b);
~BlockDiagonal() {delete [] row_len; delete [] col_len;}
void setZeroBlockEdge(diag_iter edge);
int getNumZeros() const;
int getNumBlocks() const;
int getLargestBlock() const;
void printInfo() const;
void multKron(KronVector& x) const;
void multKronTrans(KronVector& x) const;
const_col_iter col_begin(const DiagonalBlock& b) const;
col_iter col_begin(const DiagonalBlock& b);
const_row_iter row_end(const DiagonalBlock& b) const;
row_iter row_end(const DiagonalBlock& b);
QuasiTriangular* clone() const
{return new BlockDiagonal(*this);}
private:
void setZerosToRU(diag_iter edge);
const_diag_iter findBlockStart(const_diag_iter from) const;
static void savePartOfX(int si, int ei, const KronVector& x, Vector& work);
void multKronBlock(const_diag_iter start, const_diag_iter end,
KronVector& x, Vector& work) const;
void multKronBlockTrans(const_diag_iter start, const_diag_iter end,
KronVector& x, Vector& work) const;
};
#endif /* BLOCK_DIAGONAL_H */
// Local Variables:
// mode:C++
// End:
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