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Copy pathmatrix.cpp
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339 lines (285 loc) · 5.05 KB
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#include "stdafx.h"
#include "matrix.h"
_MATRIX CMyMatrix::CMyMatrix()
{
nCol = 0;
nRow = 0;
pMatrix = NULL;
}
_MATRIX CMyMatrix::CMyMatrix(unsigned int row, unsigned int col, double value)
{
nCol = col;
nRow = row;
pMatrix = new double [nRow * nCol];
if(pMatrix != NULL)
{
for(unsigned int i = 0; i < nRow * nCol; i++)
{
pMatrix[i] = value;
}
}
}
_MATRIX CMyMatrix::CMyMatrix(const CMyMatrix &source)
{
if(this != &source)
{
nRow = source.nRow;
nCol = source.nCol;
pMatrix = new double [nRow * nCol];
if(pMatrix != NULL)
{
for(unsigned int i = 0; i < nRow * nCol; i++)
{
pMatrix[i] = source.pMatrix[i];
}
}
}
}
_MATRIX CMyMatrix::~CMyMatrix()
{
if(pMatrix != NULL)
{
delete []pMatrix;
}
}
_MATRIX void CMyMatrix::Add(const CMyMatrix &source)
{
if(pMatrix != NULL && nRow == source.nRow && nCol == source.nCol)
{
for(unsigned int i = 0; i < nRow * nCol; ++i)
{
pMatrix[i] += source.pMatrix[i];
}
}
}
_MATRIX unsigned int CMyMatrix::Col()
{
return nCol;
}
_MATRIX unsigned int CMyMatrix::Row()
{
return nRow;
}
_MATRIX void CMyMatrix::Resize(unsigned int row, unsigned int col, double value)
{
delete []pMatrix;
nRow = row;
nCol = col;
pMatrix = new double [nRow * nCol];
if(pMatrix != NULL)
{
for(unsigned int i = 0; i < nRow * nCol; i++)
{
pMatrix[i] = value;
}
}
}
_MATRIX void CMyMatrix::Transposition()
{
double *temp;
unsigned int i, j;
temp = new double [nRow * nCol];
if(temp != NULL)
{
for(i = 0; i < nRow * nCol; i++)
{
temp[i] = pMatrix[i];
}
}
nRow += nCol;
nCol = nRow - nCol;
nRow = nRow - nCol;
for(i = 0; i < nRow; i++)
{
for(j = 0; j < nCol; ++j)
{
pMatrix[i * nCol + j] = temp[j * nRow + i];
}
}
delete []temp;
}
_MATRIX CMyMatrix & CMyMatrix::operator=(const CMyMatrix &a)
{
unsigned int i;
if(nRow != a.nRow || nCol != a.nCol)
{
printf("Unmatch CMyMatrix!\n");
return *this;
}
for(i = 0; i < nRow * nCol; i++)
{
pMatrix[i] = a.pMatrix[i];
}
return *this;
}
_MATRIX CMyMatrix & CMyMatrix::operator=(double value)
{
unsigned int i;
pMatrix = new double[nRow * nCol];
for(i = 0; i < nRow * nCol; i++)
{
pMatrix[i] = value;
}
return *this;
}
//重载+运算符，要求两个矩阵的大小相同
_MATRIX const CMyMatrix CMyMatrix::operator+(const CMyMatrix &a)
{
unsigned int i;
if(nRow != a.nRow || nCol != a.nCol)
{
printf("Unmatch CMyMatrix!\n");
return *this;
}
for(i = 0; i < nRow * nCol; i++)
{
pMatrix[i] += a.pMatrix[i];
}
return *this;
}
_MATRIX const CMyMatrix CMyMatrix::operator+(double value)
{
unsigned int i;
for(i = 0; i < nRow * nCol; i++)
{
pMatrix[i] += value;
}
return *this;
}
//重载-运算符，要求两个矩阵的大小相同
_MATRIX const CMyMatrix CMyMatrix::operator-(const CMyMatrix &a)
{
unsigned int i;
if(nRow != a.nRow || nCol != a.nCol)
{
printf("Unmatch CMyMatrix!\n");
return *this;
}
for(i = 0; i < nRow * nCol; i++)
{
pMatrix[i] = pMatrix[i] - a.pMatrix[i];
}
return *this;
}
_MATRIX const CMyMatrix CMyMatrix::operator-(double value)
{
unsigned int i;
for(i = 0; i < nRow * nCol; i++)
{
pMatrix[i] -= value;
}
return *this;
}
//重载*运算符，要求矩阵a的列数等于b的行数
_MATRIX const CMyMatrix CMyMatrix::operator*(const CMyMatrix &a)
{
unsigned int i, j, k;
double tmp;
if(nCol != a.nRow)
{
printf("Unmatch CMyMatrix!\n");
return *this;
}
CMyMatrix temp(nRow, a.nCol, 0);
for(i = 0; i < nRow; i++)
{
for(j = 0; j < a.nCol; j++)
{
tmp = 0;
for(k = 0; k < a.nRow; k++)
{
tmp += pMatrix[i * nCol + k] * a.pMatrix[k * a.nCol + j];
}
temp.pMatrix[i * a.nCol + j] = tmp;
}
}
return temp;
}
_MATRIX const CMyMatrix CMyMatrix::operator*(double value)
{
unsigned int i;
for(i = 0; i < nRow * nCol; i++)
{
pMatrix[i] *= value;
}
return *this;
}
///重载==运算符，要求两个矩阵的大小相同
_MATRIX bool CMyMatrix::operator==(const CMyMatrix &a)
{
unsigned int i;
if(nRow != a.nRow || nCol != a.nCol)
{
printf("Unmatch CMyMatrix!\n");
return false;
}
for(i = 0; i < nRow * nCol; i++)
{
if(this->pMatrix[i] != a.pMatrix[i])
{
return false;
}
}
return true;
}
_MATRIX bool CMyMatrix::operator==(double value)
{
unsigned int i;
for(i = 0; i < nRow * nCol; i++)
{
pMatrix[i] != value;
return false;
}
return true;
}
_MATRIX bool CMyMatrix::operator!=(const CMyMatrix &source)
{
unsigned int i;
if(nRow != source.nRow || nCol != source.nCol)
{
printf("Unmatch CMyMatrix!\n");
return true;
}
else
{
for(i = 0; i < nRow * nCol; i++)
{
pMatrix[i] == source.pMatrix[i];
return false;
}
return true;
}
}
_MATRIX bool CMyMatrix::operator!=(double value)
{
unsigned int i;
for(i = 0; i < nRow * nCol; i++)
{
pMatrix[i] == value;
return false;
}
return true;
}
_MATRIX double CMyMatrix::get(unsigned int row, unsigned int col)
{
double value;
if (row > nRow || col > nCol)
{
return -1;
}
else
{
value = pMatrix[row * nCol +col];
return value;
}
}
_MATRIX void CMyMatrix::set(unsigned int row, unsigned int col, double value)
{
if (row > nRow || col > nCol)
{
}
else
{
pMatrix[row * nCol +col] = value;
}
}