***Pointer notation

[Kyle M]

I had a question about certain kind of pointers. If you had say int **Ptr; How does that exactly work. I know normal pointers from pointing to int variables to pointers to dynamically allocated memory. But i'm not sure how this notation works exactly. If I can get a few examples and how it works that would be awesome, I tried to search it and only got regular pointer stuff. Thanks!

[Nick Schuck]

If you are asking what it means, it is a pointer to a pointer. If you read it right to left, it might help and is how I used to remember. "Ptr" is a pointer(*) to a pointer(*) to an int

int main()
{
int var = 8;
int* ptr;
int** pptr;

//ptr is a pointer to integer var
ptr = &var;
//pptr is a pointer to pointer ptr
pptr = &ptr;

}