3dpcp/.svn/pristine/83/83d08297e30c8b5792cc9e3a194b0a907bb44772.svn-base
2012-09-16 14:33:11 +02:00

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//$$ newmatrc.h definition file for row/column classes
// Copyright (C) 1991,2,3,4,7: R B Davies
#ifndef NEWMATRC_LIB
#define NEWMATRC_LIB 0
#ifdef use_namespace
namespace NEWMAT {
#endif
#include "controlw.h"
/************** classes MatrixRowCol, MatrixRow, MatrixCol *****************/
// Used for accessing the rows and columns of matrices
// All matrix classes must provide routines for calculating matrix rows and
// columns. Assume rows can be found very efficiently.
enum LSF { LoadOnEntry=1,StoreOnExit=2,DirectPart=4,StoreHere=8,HaveStore=16 };
class LoadAndStoreFlag : public ControlWord
{
public:
LoadAndStoreFlag() {}
LoadAndStoreFlag(int i) : ControlWord(i) {}
LoadAndStoreFlag(LSF lsf) : ControlWord(lsf) {}
LoadAndStoreFlag(const ControlWord& cwx) : ControlWord(cwx) {}
};
class MatrixRowCol
// the row or column of a matrix
{
public: // these are public to avoid
// numerous friend statements
int length; // row or column length
int skip; // initial number of zeros
int storage; // number of stored elements
int rowcol; // row or column number
GeneralMatrix* gm; // pointer to parent matrix
Real* data; // pointer to local storage
LoadAndStoreFlag cw; // Load? Store? Is a Copy?
void IncrMat() { rowcol++; data += storage; } // used by NextRow
void IncrDiag() { rowcol++; skip++; data++; }
void IncrId() { rowcol++; skip++; }
void IncrUT() { rowcol++; data += storage; storage--; skip++; }
void IncrLT() { rowcol++; data += storage; storage++; }
public:
void Zero(); // set elements to zero
void Add(const MatrixRowCol&); // add a row/col
void AddScaled(const MatrixRowCol&, Real); // add a multiple of a row/col
void Add(const MatrixRowCol&, const MatrixRowCol&);
// add two rows/cols
void Add(const MatrixRowCol&, Real); // add a row/col
void NegAdd(const MatrixRowCol&, Real); // Real - a row/col
void Sub(const MatrixRowCol&); // subtract a row/col
void Sub(const MatrixRowCol&, const MatrixRowCol&);
// sub a row/col from another
void RevSub(const MatrixRowCol&); // subtract from a row/col
void ConCat(const MatrixRowCol&, const MatrixRowCol&);
// concatenate two row/cols
void Multiply(const MatrixRowCol&); // multiply a row/col
void Multiply(const MatrixRowCol&, const MatrixRowCol&);
// multiply two row/cols
void KP(const MatrixRowCol&, const MatrixRowCol&);
// Kronecker Product two row/cols
void Copy(const MatrixRowCol&); // copy a row/col
void CopyCheck(const MatrixRowCol&); // ... check for data loss
void Check(const MatrixRowCol&); // just check for data loss
void Check(); // check full row/col present
void Copy(const Real*&); // copy from an array
void Copy(Real); // copy from constant
void Add(Real); // add a constant
void Multiply(Real); // multiply by constant
Real SumAbsoluteValue(); // sum of absolute values
Real MaximumAbsoluteValue1(Real r, int& i); // maximum of absolute values
Real MinimumAbsoluteValue1(Real r, int& i); // minimum of absolute values
Real Maximum1(Real r, int& i); // maximum
Real Minimum1(Real r, int& i); // minimum
Real Sum(); // sum of values
void Inject(const MatrixRowCol&); // copy stored els of a row/col
void Negate(const MatrixRowCol&); // change sign of a row/col
void Multiply(const MatrixRowCol&, Real); // scale a row/col
friend Real DotProd(const MatrixRowCol&, const MatrixRowCol&);
// sum of pairwise product
Real* Data() { return data; }
int Skip() { return skip; } // number of elements skipped
int Storage() { return storage; } // number of elements stored
int Length() { return length; } // length of row or column
void Skip(int i) { skip=i; }
void Storage(int i) { storage=i; }
void Length(int i) { length=i; }
void SubRowCol(MatrixRowCol&, int, int) const;
// get part of a row or column
MatrixRowCol() {} // to stop warning messages
~MatrixRowCol();
FREE_CHECK(MatrixRowCol)
};
class MatrixRow : public MatrixRowCol
{
public:
// bodies for these are inline at the end of this .h file
MatrixRow(GeneralMatrix*, LoadAndStoreFlag, int=0);
// extract a row
~MatrixRow();
void Next(); // get next row
FREE_CHECK(MatrixRow)
};
class MatrixCol : public MatrixRowCol
{
public:
// bodies for these are inline at the end of this .h file
MatrixCol(GeneralMatrix*, LoadAndStoreFlag, int=0);
// extract a col
MatrixCol(GeneralMatrix*, Real*, LoadAndStoreFlag, int=0);
// store/retrieve a col
~MatrixCol();
void Next(); // get next row
FREE_CHECK(MatrixCol)
};
// MatrixColX is an alternative to MatrixCol where the complete
// column is stored externally
class MatrixColX : public MatrixRowCol
{
public:
// bodies for these are inline at the end of this .h file
MatrixColX(GeneralMatrix*, Real*, LoadAndStoreFlag, int=0);
// store/retrieve a col
~MatrixColX();
void Next(); // get next row
Real* store; // pointer to local storage
// less skip
FREE_CHECK(MatrixColX)
};
/**************************** inline bodies ****************************/
inline MatrixRow::MatrixRow(GeneralMatrix* gmx, LoadAndStoreFlag cwx, int row)
{ gm=gmx; cw=cwx; rowcol=row; gm->GetRow(*this); }
inline void MatrixRow::Next() { gm->NextRow(*this); }
inline MatrixCol::MatrixCol(GeneralMatrix* gmx, LoadAndStoreFlag cwx, int col)
{ gm=gmx; cw=cwx; rowcol=col; gm->GetCol(*this); }
inline MatrixCol::MatrixCol(GeneralMatrix* gmx, Real* r,
LoadAndStoreFlag cwx, int col)
{ gm=gmx; data=r; cw=cwx+StoreHere; rowcol=col; gm->GetCol(*this); }
inline MatrixColX::MatrixColX(GeneralMatrix* gmx, Real* r,
LoadAndStoreFlag cwx, int col)
{ gm=gmx; store=data=r; cw=cwx+StoreHere; rowcol=col; gm->GetCol(*this); }
inline void MatrixCol::Next() { gm->NextCol(*this); }
inline void MatrixColX::Next() { gm->NextCol(*this); }
#ifdef use_namespace
}
#endif
#endif