Smart Pointer Library UE4

Custom implementation of C++11 smart pointer design These classes cannot be used with the UObject system. Unreal Smart Pointer Library is only available for Game Code. see : docs.unrealengine.com/SmartPointerLibrary

Type	Desc
TSharedPtr	Owns the object it references, preventing deletion, can be empty, if non-null can produce a shared reference.
TSharedRef	Acts like sharedptr, always referenced a non null object, can always be a sharedptr
TWeakPtr	Similar to SharedPtr, but don't own the object they reference and not affect its lifecycle. Very useful as it breaks reference cycles, can become null at any time, can produce a Shared Pointer.
TUniquePtr	Owns the object it references, can only be one Unique Pointer to a given resource, Unique Pointers can transfer ownership, but cannot share it. Any attempts to copy a Unique Pointer will result in a compile error. When a Unique Pointer is goes out of scope, it will automatically delete the object it references.

Size of smart pointer library

Smart Pointers are only twice the size of a C++ pointer in 64-bit (plus a shared 16-byte reference controller). The exception to this is Unique Pointers, which are the same size as C++ pointers.

Example

Todo