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Possible Duplicate:
Operator[][] overload
我制作的类包含一个数组,其中包含(在一行中)给定二维数组中的所有数字。例如给定:{{1,2}{3,4}}
T
类的对象中的 b
字段包含 {1,2,3,4}
。我想为这个类重载 [][] 运算符,这样它就会像那样工作
T* t.....new etc.
int val = (*t)[i][j]; //I get t->b[i*j + j] b is an 1dimension array
class T{
public:
int* b;
int m, n;
T(int** a, int m, int n){
b = new int[m*n];
this->m = m;
this->n = n;
int counter = 0;
for(int i = 0; i < m; i++){
for(int j = 0; j < n; j++){
b[counter] = a[i][j];
counter++;
}
}
}
int main()
{
int m = 3, n = 5, c = 0;
int** tab = new int*[m];
for(int i = 0; i < m; i++)
tab[i] = new int[n];
for(int i = 0; i < m; i++){
for(int j = 0; j < n; j++){
tab[i][j] = c;
c++;
cout<<tab[i][j]<<"\t";
}
cout<<"\n";
}
T* t = new T(tab,3,5);
};