C++: Difference between revisions

C++ (view source)

457 bytes added , 3 February 2020

5,337

edits

@@ Line 186: / Line 186: @@
 auto my_car = std::make_unique<Car>();
 </syntaxhighlight>
-Note: If the object you need is not very large, you can consider just including it as part of your class (or leaving it on the stack) rather than use pointers.
+;Notes
+* If the object you need is not very large, you can consider just including it as part of your class (or leaving it on the stack) rather than use pointers.
+* If you want to get a copy of the smart pointer to the current object, the object must '''publically''' inherit <code>std::enable_shared_from_this<T></code>
+** Then you can call <code>shared_from_this()</code> from within any method (not the constructor).
+** May throw <code>bad_weak_ptr</code> if you call <code>shared_from_this()</code> without <code>make_shared</code> or if you do not publically inherit <code>std::enable_shared_from_this<T></code>
 ====Garbage Collection====