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/***************************************************************************
Matrix.h - simple template class for a NxM matrix
-------------------
begin : Sat May 12 2012
copyright : (C) 2012 by Thomas Eschenbacher
email : Thomas.Eschenbacher@gmx.de
based on Matrix.h from Martin Hinsch
copyright (C) 2001 by Martin Hinsch <vidas@sourceforge.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. *
* *
***************************************************************************/
#ifndef MATRIX_H
#define MATRIX_H
#include "config.h"
#include <string.h>
#include <new>
#include <QtGlobal>
namespace Kwave
{
template <class T> class Matrix
{
public:
/**
* constructor
* @param cols number of columns
* @param rows number of rows
*/
Matrix(unsigned int cols, unsigned int rows)
:m_rows(rows), m_cols(cols), m_data(nullptr)
{
m_data = new(std::nothrow) T[m_rows * m_cols];
Q_ASSERT(m_data);
}
/** copy constructor */
Matrix(const Matrix &other)
:m_rows(other.m_rows), m_cols(other.m_cols), m_data(nullptr)
{
m_data = new(std::nothrow) T[m_rows * m_cols];
Q_ASSERT(m_data);
memcpy(m_data, other.m_data, m_rows * m_cols * sizeof(T));
}
/** destructor */
virtual ~Matrix()
{
delete[] m_data;
m_data = nullptr;
}
/** Get the xth column. Enables expressions like myMatrix[x][y]. */
inline T * operator[] (unsigned int col) const {
return m_data + (col * m_rows);
}
private:
/** number of rows */
unsigned int m_rows;
/** number of columns */
unsigned int m_cols;
/** raw data */
T *m_data;
};
}
#endif /* MATRIX_H */
//***************************************************************************
//***************************************************************************
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