Pointer to auto_ptr instead of a classical double pointer
- by Pin
Hello. I'm quite new to smart pointers and was trying to refactor some existing code to use auto_ptr. The question I have is about double pointers and their auto_ptr equivalent, if that makes sense.
I have a function that accepts a double pointer as its parameter and the function allocates resources for it:
void foo ( Image** img ) { ... *img = new Image(); ...}
This function is then used like this:
Image* img = NULL;
foo ( &img );
...
delete img;
I want to use auto_ptr to avoid having to call delete explicitly. Is the following correct?
void foo ( auto_ptr<Image>* img );
and then
auto_ptr<Image> img = NULL;
foo ( &img );
Thanks.
