/* $Header: /var/lib/cvs/dynare_cpp/sylv/cc/GeneralSylvester.h,v 1.1.1.1 2004/06/04 13:00:20 kamenik Exp $ */

/* Tag $Name:  $ */

#ifndef GENERAL_SYLVESTER_H
#define GENERAL_SYLVESTER_H

#include "SylvMatrix.h"
#include "SylvMemory.h"
#include "SimilarityDecomp.h"
#include "SylvesterSolver.h"

class GeneralSylvester {
	SylvParams pars;
	SylvMemoryDriver mem_driver;
	int order;
	const SqSylvMatrix a;
	const SylvMatrix b;
	const SqSylvMatrix c;
	SylvMatrix d;
	bool solved;
	SchurDecompZero* bdecomp;
	SimilarityDecomp* cdecomp;
	SylvesterSolver* sylv;
public:
	/* construct with my copy of d*/
	GeneralSylvester(int ord, int n, int m, int zero_cols,
					 const double* da, const double* db,
					 const double* dc, const double* dd,
					 const SylvParams& ps);
	GeneralSylvester(int ord, int n, int m, int zero_cols,
					 const double* da, const double* db,
					 const double* dc, const double* dd,
					 bool alloc_for_check = false);
	/* construct with provided storage for d */
	GeneralSylvester(int ord, int n, int m, int zero_cols,
					 const double* da, const double* db,
					 const double* dc, double* dd,
					 bool alloc_for_check = false);
	GeneralSylvester(int ord, int n, int m, int zero_cols,
					 const double* da, const double* db,
					 const double* dc, double* dd,
					 const SylvParams& ps);
	virtual ~GeneralSylvester();
	int getM() const {return c.numRows();}
	int getN() const {return a.numRows();}
	const double* getResult() const {return d.base();}
	const SylvParams& getParams() const {return pars;}
	SylvParams& getParams() {return pars;}
	void solve();
	void check(const double* ds);
private:
	void init();
};

#endif /* GENERAL_SYLVESTER_H */


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