C++: Difference between revisions

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Smart pointers were added in C++11.<br>

There are 3 types of smart pointers:

* [https://en.cppreference.com/w/cpp/memory/unique_ptr <code>unique_ptr</code>] - one piece of code ''owns'' the memory at any given time.<br>

* [https://en.cppreference.com/w/cpp/memory/unique_ptr <code>std::unique_ptr</code>] - one piece of code ''owns'' the memory at any given time.<br>

* <code>shared_ptr</code> - the memory has multiple owners.

* <code>std::shared_ptr</code> - the memory has multiple owners.

* <code>weak_ptr</code> - a non-owning reference to a shared_ptr.

* <code>std::weak_ptr</code> - a non-owning reference to a shared_ptr.

In general, there should be one object owning an object using a <code>unique_ptr</code>. Whenever you pass the value around, other functions should receive the object as a reference making it clear that they do not have ownership of the object. Smart pointers are nullable and assignable similar to regular pointers.

@@ Line 265: / Line 265: @@
 Smart pointers were added in C++11.<br>
 There are 3 types of smart pointers:
-* [https://en.cppreference.com/w/cpp/memory/unique_ptr <code>unique_ptr</code>] - one piece of code ''owns'' the memory at any given time.<br>
+* [https://en.cppreference.com/w/cpp/memory/unique_ptr <code>std::unique_ptr</code>] - one piece of code ''owns'' the memory at any given time.<br>
-* <code>shared_ptr</code> - the memory has multiple owners.
+* <code>std::shared_ptr</code> - the memory has multiple owners.
-* <code>weak_ptr</code> - a non-owning reference to a shared_ptr.
+* <code>std::weak_ptr</code> - a non-owning reference to a shared_ptr.
 In general, there should be one object owning an object using a <code>unique_ptr</code>. Whenever you pass the value around, other functions should receive the object as a reference making it clear that they do not have ownership of the object. Smart pointers are nullable and assignable similar to regular pointers.