C ++重载运算符[] []

本文介绍了C ++重载运算符[] []的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我有类CMatrix，其中是值的数组的双指针。

I have class CMatrix, where is "double pointer" to array of values.

class CMatrix { public: int rows, cols; int **arr; };

我只需要键入以下内容来访问矩阵的值：

I simply need to access the values of matrix by typing:

CMatrix x; x[0][0] = 23;

我知道如何使用：

x(0,0) = 23;

但我真的需要这样做。任何人可以帮助我吗？请？

But I really need to do that the other way. Can anyone help me with that? Please?

感谢大家的帮助，我这样做了...

Thank you guys for help at the end I did it this way...

class CMatrix { public: int rows, cols; int **arr; public: int const* operator[]( int const y ) const { return &arr[0][y]; } int* operator[]( int const y ) { return &arr[0][y]; } ....

帮助我真的很感激它！

推荐答案

没有 operator [] [] 在C ++中。但是，您可以重载 operator [] 以返回另一个结构，并且在重载 operator [] 效果。

There is no operator[][] in C++. However, you can overload operator[] to return another structure, and in that overload operator[] too to get the effect you want.