What is the correct way of using an auto_ptr on dynamically allocated arrays?

Posted by LoudNPossiblyRight on Stack Overflow See other posts from Stack Overflow or by LoudNPossiblyRight
Published on 2010-06-01T00:33:19Z Indexed on 2010/06/01 0:43 UTC
Read the original article Hit count: 193

Filed under:

c++

|

auto-ptr

If i use auto_ptr to hold a pointer to a dynamically allocated array, when the auto_ptr gets killed it will use a plain delete operation and not delete[] thus not deleting my allocated array.

How can i (properly) use auto_ptr on dynamically allocated arrays?

If this is not possible, is there another smart pointer alternative for dynamically allocated arrays?

Thanks in advance.

© Stack Overflow or respective owner

Related posts about c++

Which C++ book shold I get between "C++ Primer" vs "C++ Primer Plus"

as seen on Stack Overflow - Search for 'Stack Overflow'
I want to learn C++ by using Vim and MinGW as compiler. I'm interesting at "C++ Primer (4th Edition)" and "C++ Primer Plus (5th Edition)" but I don't know how about it different. It has no book store that I can review those books, so I want to know, what is the different between those book and which… >>> More
C++ : C++ Primer (Stanley Lipmann) or The C++ programming language (special edition)

as seen on Stack Overflow - Search for 'Stack Overflow'
I have a Computer Science degree (long2 time ago) .. I do know Java OOP but i am now trying to pick up C++. I do have C and of course data structure using C or pascal. I have started reading Bjarne Stroustrup book (The C++ Programming Language - Special Edition) but find it extremely difficult esp… >>> More
I need help on my C++ assignment using MS Visual C++

as seen on Stack Overflow - Search for 'Stack Overflow'
Ok, so I don't want you to do my homework for me, but I'm a little lost with this final assignment and need all the help I can get. Learning about programming is tough enough, but doing it online is next to impossible for me... Now, to get to the program, I am going to paste what I have so far. This… >>> More
Managed c++ std::string not accessible in unmanaged c++

as seen on Stack Overflow - Search for 'Stack Overflow'
In unmanaged c++ dll i have a function which takes constant std::string as argument Prototype : void read ( const std::string &imageSpec_ ) I call this function from managed c++ dll by passing a std::string. When i debug the unmanaged c++ code the parameter imageSpec_ shows the value correctly… >>> More
The Definitive C++ Book Guide and List

as seen on Stack Overflow - Search for 'Stack Overflow'
After more than a few questions about deciding on C++ books I thought we could make a better community wiki version. Providing QUALITY books and an approximate skill level. Maybe we can add a short blurb/description about each book that you have personally read / benefited from. Feel free to debate… >>> More

Related posts about auto-ptr

So can unique_ptr be used safely in stl collections?

as seen on Stack Overflow - Search for 'Stack Overflow'
I am confused with unique_ptr and rvalue move philosophy. Let's say we have two collections: std::vector<std::auto_ptr<int>> autoCollection; std::vector<std::unique_ptr<int>> uniqueCollection; Now I would expect the following to fail, as there is no telling what the algorithm… >>> More
Compilation problems with vector<auto_ptr<> >

as seen on Stack Overflow - Search for 'Stack Overflow'
Consider the following code: #include <iostream> #include <memory> #include <vector> using namespace std; struct A { int a; A(int a_):a(a_) {} }; int main() { vector<auto_ptr<A> > as; for (int i = 0; i < 10; i++) { auto_ptr<A>… >>> More
Compilng problems with vector<auto_ptr<> >

as seen on Stack Overflow - Search for 'Stack Overflow'
Consider the following code: #include <iostream> #include <memory> #include <vector> using namespace std; struct A { int a; A(int a_):a(a_) {} }; int main() { vector<auto_ptr<A> > as; for (int i = 0; i < 10; i++) { auto_ptr<A>… >>> More
Can i pass auto_ptr by reference to functions?

as seen on Stack Overflow - Search for 'Stack Overflow'
is the following function OK: void DoSomething(auto_ptr<int>& a).... >>> More
should std::auto_ptr<>::operator = reset / deallocate its existing pointee ?

as seen on Stack Overflow - Search for 'Stack Overflow'
I read here about std::auto_ptr<::operator= Notice however that the left-hand side object is not automatically deallocated when it already points to some object. You can explicitly do this by calling member function reset before assigning it a new value. However, when I read the… >>> More