qvector.h

/***************************************************************************
 *   Copyright (C) 2006 by Alan Grimes   *
 *   agrimes@speakeasy.net   *
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *(at your option) any later version.                                   *
 *                                                                         *
 *   This program is distributed in the hope that it will be useful,       *
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
 *   GNU General Public License for more details.                          *
 *                                                                         *
 *   You should have received a copy of the GNU General Public License     *
 *   along with this program; if not, write to the                         *
 *   Free Software Foundation, Inc.,                                       *
 *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
 ***************************************************************************/

#ifndef QVECTOR_H
#define QVECTOR_H

#ifndef CUI
#define CUI     const unsigned int
#endif

#define EPSILON 0.000001

class QuickVector {
public :
         QuickVector(CUI m_in);
        ~QuickVector();
         QuickVector(const QuickVector *old); // ye olde copy constructor.

        double & operator[]( const int i ) { changed = true; return values[i]; }
        const double operator[]( const int i ) const { return values[i]; }

// accessors
// we use accessors so that we can provide range checking.
// we use Smalltalk style naming conventions.
        double at(CUI m_a) const;
        bool atPut(CUI m_a, const double val);
        bool atAdd(CUI m_a, const double val);

        unsigned int size() const;

// utility functions:
//      void fillWithRandom();
        void fillWithZeros();
        bool swapelements(CUI m_a, CUI m_b);

// Vector arithmetic.

        QuickVector *operator*=(const double *y);
        QuickVector *operator*=(const QuickVector *y);
        QuickVector *operator+=(const QuickVector *y);
        QuickVector *operator-(const QuickVector *y) const;

// debugging
        void dumpToAux() const;

        inline bool isChanged() const { return changed; }
        inline void setUnchanged() { changed=false; }

private :
// We don't have a default vector size so therefore we lock the default constructor.
        QuickVector() {};
        unsigned int m;
        bool changed;
        double *values;
};

#endif

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