Normal pointer vs Auto pointer (std::auto_ptr)
- by AKN
Code snippet (normal pointer)
int *pi = new int;
int i = 90;
pi = &i;
int k = *pi + 10;
cout<<k<<endl;
delete pi;
[Output: 100]
Code snippet (auto pointer)
Case 1:
std::auto_ptr<int> pi(new int);
int i = 90;
pi = &i;
int k = *pi + 10; //Throws unhandled exception error at this point while debugging.
cout<<k<<endl;
//delete pi; (It deletes by itself when goes out of scope. So explicit 'delete' call not required)
Case 2:
std::auto_ptr<int> pi(new int);
int i = 90;
*pi = 90;
int k = *pi + 10;
cout<<k<<endl;
[Output: 100]
Can someone please tell why it failed to work for case 1?
