當我嘗試使用此行的main.cpp:在C++運算符重載是給我一個錯誤
m3.array = m1.array+m2.array;
,其中M3,M1及M2是一類型矩陣的所有對象,有一個int [3] [3] array - 我不斷收到一個錯誤,該錯誤處理的是類型int [3] [3]和int [3] [3]與opperand'+'不兼容的賦值。我不知道確切的錯誤,因爲我不在計算機上編譯程序。
這裏的matrix.cpp我:
#include <iostream>
#include <string>
#include "matrix.h"
using namespace std;
Matrix::Matrix()
{
m1.array = 0;
}
istream& opeator >>(istream& inp, Matrix& m1)
{
int i, j;
for (i = 0; i < 3;i++)
{
for (j=0; j < 3;j++)
{
inp >> m1.array[i][j];
}
}
return inp;
}
ostream& operator <<(istream& outp, Matrix& m1)
{
int i, j;
for (i = 0;i<3;i++)
{
for (j = 0;j<3;j++)
{
out<<m1.array[i][j]<<" "<<endl;
}
}
return outp;
}
Matrix operator + (const Matrix& m1, const Matrix& m2)
{
Matrix answer;
int i,j;
for (i = 0;i<3;i++)
{
for (j = 0;j<3;j++)
{
answer.array[i][j] = m1.array[i][j] + m2.array[i][j];
}
}
return answer;
}
Matrix operator - (const Matrix& m1, const Matrix& m2)
{
Matrix answer;
int i, j;
for (i = 0;i<3;i++)
{
for (j = 0;j<3;j++)
{
answer.array[i][j] = m1.array[i][j] - m2.array[i][j];
}
}
return answer;
}
Matrix operator * (const Matrix& m1, const matrix& m2)
{
Matrix answer;
int i, j, k;
for (i = 0;i<3;i++)
{
for (j = 0; j<3;j++)
{
for (k = 0; k<3;k++)
{
answer.array[i][j] = m1.array[i][k] + m2.array[k][j];
}
}
}
return answer;
}
和matrix.h:
#ifndef MATRIX_H
#define MATRIX_H
using namespace std;
class Matrix
{
public:
Matrix();
friend istream& operator >>(istream&, Matrix&);
friend ostream& operator <<(ostream&, const Matrix&);
friend Matrix& operator +(const Matrix&, const Matrix&);
friend Matrix& operator -(const Matrix&, const Matrix&);
friend Matrix& operator *(const Matrix&, const Matrix&);
int array[3][3];
};
#endif
爲什麼要添加'array'字段而不是實際的'Matrix'對象? –
適當的操作符重載應該看起來像'm1 = m2 + m3 – Chad
該行的意圖是什麼m1.array = 0;它編譯? – neagoegab