如何在C ++中释放动态数组的内存

Question

I have a dynamic array in c++ that defined like this:

string** CommunityNodes = new string *[10000];
for (int i = 0; i < 10000; ++i) {
     CommunityNodes[i] = new string[1000];
}

If the array type would be in int type, i can release it like this:

int ** array_iter = CommunityNodes;
    while(*array_iter){
            delete(*array_iter++);
}
delete CommunityNodes;

but my array type is string and by the above way, i get some errors. so how can I release the alocated memory of this dynamic array?

Answer 1

If you allocate memory using new [] , you need to use delete [] :

for (int i = 0; i < 10000; ++i) {
    delete [] CommunityNodes[i];
}
delete [] CommunityNodes;