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15.1 — Intro to smart pointers and move semantics. By Alex on February 17th, 2017 | last modified by Alex on January 19th, 2018. Consider a function in which we dynamically allocate a value:
16 Mar 2012
18 Nov 2012 Note that before C++11, C++ did have one smart pointer class – auto_ptr . This was unsafe and is now deprecated, with unique_ptr replacing it. To use these classes, you'll need to #include <memory> (and also add using namespace std; or prefix with std:: ).
For example, Boost provides the following smart pointer implementations: shared_ptr<T> is a pointer to T using a reference count to determine when the object is no longer needed. scoped_ptr<T> is a pointer automatically deleted when it goes out of scope. intrusive_ptr<T> is another reference counting pointer.
11 Feb 2013 Ooops. Yet another article on smart pointers of C++11. Nowadays I hear a lot of people talking about the new C++ standard which is nothing but C++0x/C++11. I went through some of the language features of C++11 and it's really an amazing work. I'll focus only on the smart pointers section of C++11.
C++ Standard Library Smart Pointers. unique_ptr. Allows exactly one owner of the underlying pointer. Use as the default choice for POCO unless you know for certain that you require a shared_ptr . shared_ptr. Reference-counted smart pointer. weak_ptr. Special-case smart pointer for use in conjunction with shared_ptr .
15 Jul 2017 what is std::unique_ptr ? unique_ptr<> is one of the Smart pointer implementation provided by c++11 to prevent memory leaks. A unique_ptr object wraps around a raw pointer and its responsible for its lifetime. When this object is destructed then in its destructor it deletes the associated raw pointer.
Using smart pointers, we can make pointers to work in way that we don't need to explicitly call delete. Smart pointer is a wrapper class over a pointer with operator like * and -> overloaded. The objects of smart pointer class look like pointer, but can do many things that a normal pointer can't like automatic destruction (yes, we
10 Jan 2014 The last case, the RAII like objects called smart pointers is the topic of this post. I want to give an overview over the choices one can make when using smart pointers. As I studied last year boost, Qt and wxWidgets closer, I saw, that all of them have their own implementations of smart pointers. Also, C++11
Smart pointers can facilitate intentional programming by expressing, in the type, how the memory of the referent of the pointer will be managed. For example, if a C++ function returns a pointer, there is no way to know whether the caller should delete the memory of the referent when the caller is finished with the information.
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