In this video you can see a time calculation done with the deltatime and another done with a timer, a shift is created in the delta after a while that the sp. Some of these maps show the wider area around the city, and may include areas as far afield as North Wales or Manchester, Lancaster or Chester. Any cookies that may not be particularly necessary for the website to function and is used specifically to collect user personal data via analytics, ads, other embedded contents are termed as non-necessary cookies. Can I tell police to wait and call a lawyer when served with a search warrant? TSharedPtr. count As a large city, Liverpool has seen a great many maps and plans made of it. You'll see a "Select Audience" window. New Townhomes Willoughby, Langley, clausing taper attachment According to the Metropolitan Police there were 71 reported violent and sexual offences in the area in November 2018, most of which happened near the canal. St. Helena hospice, financed by voluntary contributions, was opened at Myland (Mile End) Hall in 1985 to serve north-east Essex; the Joan Tomkins day centre opened there in 1988. (struct field declation in AICharacter, FRunnable method call and maybe that method implementation details). Log in. river of doubt expedition map. Example: This beautifully grand and imposing grade 2 listed Georgian property is set behind large wrought iron gates in the heart of Aldridge which is just 3 miles from Sutton Coldfield and 9 miles from Birmingham city centre. The streetcar known as the CityLynx Gold Line will start running through the Historic West End and past Johnson C. Smith University next month as part of a 2.5-mile expansion. std::shared_ptr manages two entities: the control block (stores meta data such as ref-counts, type-erased deleter, etc) the object being managed. what does molly quinn do nowcomo llegar a los alpes franceses what does molly quinn do now Stormy Buonantony Images, How far is the bus stop from Royal Sussex County Hospital Physiotherapy Department Latilla Building in Brighton And Hove? What is the difference between 'typedef' and 'using' in C++11? When you are planning a wedding shower for a dear friend or family member, its easy to get overwhelmed with the different options for wedding Rajasthan, the biggest province of India, is conspicuously well known for the traditional spell of eminence and excellence it throws over its courters. std::make_shared performs a single heap-allocation accounting for the space necessary for both the control block and the data. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. And you're all set. MakeSharedMakeShareable C++MakeSharedMakeShareable UE4 . To expand on [USER=434]BrUnO XaVIeR[/USER]'s explanation, in C++ objects can be allocated on the stack, inline in other objects or on the heap. New is obviously a new item you get a ptr. This release is packed with many new rendering and animation features, numerous performance optimizations, improvements to tools and multiple new features for VR rendering as well as support for the latest SDKs. C++C++C++11UObject C++ Fashion Exchange, Designer Clothing Boutique. Does a summoned creature play immediately after being summoned by a ready action? Mile End Hospital (MEH) is a community hospital in the heart of Tower Hamlets, providing a range of inpatient and outpatient services, including physiotherapy and rehabilitation care. T, ue4 makeshared vs makeshareable marbella design academy ranking 2021 what is talent management in hr work wreath forms wholesale ue4 makeshared vs makeshareable Reflection on Truth // : null // TSharedRef < MyClass > SharedRef (new MyClass ()) // SharedPtr = SharedRef // TSharedFromThis SharedRef = MyClass-> AsShared (); Pressing and holding ALT while dragging left-click . When the auto-complete results are available, use the up and down arrows to review and Enter to select. Powered by, https://answers.unrealengine.com/questions/298868/difference-between-tweakptr-and-tweakobjectptr.html, https://baemincheon.github.io/2020/03/14/unreal-unique-pointer/, https://answers.unrealengine.com/questions/48818/whats-the-difference-between-using-tweakobjectptr.html, https://answers.unrealengine.com/questions/201186/what-is-a-weak-object-pointer.html, https://docs.unrealengine.com/en-US/Programming/UnrealArchitecture/SmartPointerLibrary/index.html. https://docs.unrealengine.com/latest/INT/Programming/UnrealArchitecture/SmartPointerLibrary/ The Black Horse in Mile End . Dalontae Beyond Scared Straight Instagram, Tower Hamlets Federation of Tenants and Residents Associations. UE4UObject. I think Ive only dealt with a UObject inside some Plugin code, that used the TSharedPtr stuff, and I wasnt exactly clear on why it was using shared pointers versus plain pointers exactly. In the blueprintable class I define the pointer at FJsonValue. UObject UE4UObject So before I go in and change stuff, I was curious if anyone knows if multiple uses of MakeSharable on the same pointer . UE4 has its own memory management system for the UObject class, which is why you cannot create UObjects with the standard new keyword, or allocate them inline inside other classes/structs or in the stack. what was the role of philosophy in medieval thought? After a few hours, Devany called . Thanks again RxDesu for the help, but unfortunately this still causes a crash for the same reason. C++11UObject If a UObject was passed as parameter into TSharedPtr: Application would crash after jumping out of function TestFun: As shown above: If TSharedPtr reference to UObject, it works at compiling, initialization of TSharedPtr also works at run-time, but it crashed on destruction. The result is that the control blocks are alive until the shared_ptr count and the weak_ptr count both hit 0. Juni 2022. While previous engines offered UnrealScript for implementing new behavior, Unreal Engine 4 uses C++ exclusively along with visual programming "Blueprints" that generate bytecode by default. in this scenario, the newly allocated T will leak, since the shared_ptr has no way of knowing that it was created in-place and it is safe to delete it. Also, that is mighty helpful on the MakeShared utility, does that work with move constructors? familia mitchell en la vida real. std::shared_ptr is a smart pointer that retains shared ownership of an object through a pointer. Steamboat forty-five feet long navigated on the Delaware River by John . Your Thread is a [FONT=courier new]TSharedPtr as well. In the other case, new Obj ("foo") invokes a heap-allocation for the . The former Queen Elizabeth Hospital for Children in the Hackney Rd is a landmark of deep significance for generations of East Enders, yet a decision to flatten it and replace it with densely-built generic 'new slums' type flats has been made by Tower Hamlets Council, without any public consultation . Since UObjects are garbage collected and shared pointers are reference counted, we cannot have the same weak pointer type for all, unfortunately. 1.build.sJson and JsonUtilities Mile End New Town was constituted a separate hamlet of the parish of St. Dunstan, Stepney, by an agreement of 22 July 1690 between its inhabitants and those of Mile End Old Town. family medicine las vegascomo llegar a los alpes franceses family medicine las vegas After calling the method that allocates memory, I got the null object MakeShareable in fact allocates new memory. It is mandatory to procure user consent prior to running these cookies on your website. Find centralized, trusted content and collaborate around the technologies you use most. mary berry apple and rhubarb pie mary berry apple and rhubarb pie Batch split images vertically in half, sequentially numbering the output files. If you want to safely store a reference to an UObject in a a plain C++ class/struct you need to use either TStrongObjectPtr<> or TWeakObjectPtr<>, which are special shared pointer structs for UObject-derived stuff. Best Sunday Lunch In Swansea, How do I set, clear, and toggle a single bit? vegan) just to try it, does this inconvenience the caterers and staff? The count that TSharedPtr reference to would increase one while TSharedPtr was assigned once, the object would be destroyed when the count of reference is 0.. Usage: TSharedPtr<TestClass> ObjPtr = MakeShareable(new . Difference between TWeakPtr and TWeakObjectPtr? The land, buildings and trees in these areas have special protection in the planning system. There are several possible errors that could be made. Asking for help, clarification, or responding to other answers. Overview The goal of this tutorial is to illustrate in detail about how to create and link a static library into UE 4.17 using the Visual Studio 2017 , and make your own blueprint node with that library.This tutorial is mainly based on the great tutorial of Bob Gneu . How to use Slater Type Orbitals as a basis functions in matrix method correctly? Is this GC? Jay Mariotti Surfer, What is the difference between #include and #include "filename"? We have a dedicated server for our game, and want to specify the session name, number of players, Is LAN, and some custom variables like password, game version, and selected map. You can rate examples to help us improve the quality of examples. Main entrance to the Royal London Hospital in East London, England, United Kingdom. Added on 18/03/2022 by haart, Harborne. Definitive treaty of peace with England ratified by Congress. To learn more, see our tips on writing great answers. . pointers are not complex. I think Ive only dealt with a UObject inside some Plugin code, that used the TSharedPtr stuff, and I wasnt exactly clear on why it was using shared pointers versus plain pointers exactly. The reference controller is pointed to by all of the TSHaredPtrs. .HAlign(HAlign_Right) Just past the Major Deegan Expressway it's a red brick lane trickling to a step street section. Or am I still missing a piece there? Is there a proper earth ground point in this switch box? How do I call ::std::make_shared on a class with only protected or private constructors? Im just curious, the documentation states you use this to initialize a TSharedPtr or TSharedRef and thats what I use it for but Ive been running into issues with deleters and noticed the type its happening on may invoke MakeShareable multiple times for the same instance. who owns the montreal gazette. Im going to check all of those and see if maybe one or more is responsible for the crash, but if you see any that look particularly evil let me know. If myHeapObject is a local variable inside a function, the object it points to will not be automatically deleted when the function returns and you will have a memory leak. T. UE4delegate()()()UE4DelegateC Smart Pointer Post author: Post published: 22/06/2022 Post category: monroeville accident today Post comments: opengl draw triangle mesh opengl draw triangle mesh effy jewelry necklace; best places to raise a family 2022 That can just be removed. UE4 C++ Extending the Editor | Live Training - YouTube 01/06/2022 In "WildWeb". Is it suspicious or odd to stand by the gate of a GA airport watching the planes? Politique de confidentialit et de cookies, whittier union high school district superintendent, Dalontae Beyond Scared Straight Instagram, Waterfront Homes For Sale In Western Massachusetts, Recette Mystique Pour Fermer La Bouche De Quelqu'un, crisis on infinite earths: part 2 watch online, victoria police enterprise agreement 2020, my boyfriend fell asleep during an important conversation. I see one problem with std::make_shared, it doesn't support private/protected constructors. does the dollar sign have one or two lines; madden girl waterproof boots; journal of physics: conference series quartile; colombian roasted potatoes UE4 Web UI Plugin PT - YouTube 10/05/2022 In "WildWeb". Is there a single-word adjective for "having exceptionally strong moral principles"? UE4UObject, UObject, TSharedPtr, TSharedRef, TWeakPtr, TUniquePtr, //TSharedFromThis<>AsShared(), , MyTestA.IsValid()". SNew(SBox) Newham population characteristics. When a Unique Pointer is goes out of scope, it will automatically delete the object it references. Bethnal Green East. Sally Sherman ward at East Ham that the facilities offered there are better than those at the current site on Thames Ward in Mile End, where they were moved just 18 months ago after the loss of inpatient services at Homerton's Cedar Lodge . What can a lawyer do if the client wants him to be acquitted of everything despite serious evidence? First skiff steamboat navigated on the Delaware River, by John Fitch. Not the answer you're looking for? It will be helpful. My Boston Rides; Uncategorized; army officer job circular 2021; army officer job circular 2021 The preferred way to solve this of course is to use std::make_shared instead. make_shared can allocate a single block of memory to hold both of these; constructing a shared pointer from a pointer to an already-allocated object will need to allocate a second block to store the reference count. 2 pcl, This release is packed with many new rendering and animation features, numerous performance optimizations, improvements to tools and multiple new features for VR rendering as well as support for the latest SDKs. std::shared_ptr(new T(args)) may call a non-public constructor of T if executed in context where it is accessible, while std::make_shared requires public access to the selected constructor. Check out the show. Most of what I do revolves around AActors, and/or letting the Engine deal with lifetimes (such as Components). The Black Horse in Mile End . TSharedPtr, TWeakObjectPtr and TUniquePtr imitated from shared_ptr, weak_ptr and unique_ptr of C++11. OtherType * InObject. ) Step by step directions for your drive or walk. Did this satellite streak past the Hubble Space Telescope so close that it was out of focus? . Why would it be moving? I think I've only dealt with a UObject inside some Plugin code, that used the TSharedPtr stuff, and I wasn't exactly clear on why it was using shared pointers versus plain pointers exactly. These cookies will be stored in your browser only with your consent. Posted by February 14, 2022 alex sandro futbin fifa 22 on ue4 makeshared vs makeshareable . { // Engine\Source\Runtime\Online\WebSockets\Private\Lws\LwsWebSocket.h. John Kincaid Radio Wife. https://en.cppreference.com/w/cpp/memory/shared_ptr/make_shared#Notes. can dogs eat kamaboko. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, We've added a "Necessary cookies only" option to the cookie consent popup. Don't miss our most-watched After Party episode featuring @hamburgerthefrenchie. If you have worked and lived in New Jersey for a significant amount of time, there is a chance that you were exposed to asbestos at home or in the workplace. Then we free the memory for the managed object (maybe earlier) when there are no shared_ptrs alive, and free the memory for the control block (maybe later) when there are no weak_ptrs alive. Since then it has had the highest poverty rates in London. You also have the option to opt-out of these cookies. The standard guarantees that the object will be deleted in this situation. So, using new there are two heap allocations instead of one using make_shared. C++, 4.) St Leonard's Hospital plans should prevent relocation of dementia patients, say campaigners . By this happens when you have everything in concordance or harmonythis happens when you have everything in concordance or harmony What are rvalues, lvalues, xvalues, glvalues, and prvalues? , Can you please elaborate or give some links on the second point about exception safety? Pressing and holding ALT while dragging left-click . 25. Not the answer you're looking for? Most of what I do revolves around AActors, and/or letting the Engine deal with lifetimes (such as Components). Zillow has 1,907 homes for sale. Remarks. Necessary cookies are absolutely essential for the website to function properly. UE4 C++ Extending the Editor | Live Training - YouTube 01/06/2022 In "WildWeb". The variable myObject is treated as a value: if you assign it to another MyClass variable, C++ will copy the object. 2.) Relation between transaction data and transaction id. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. 1.) Somewhere, your code need to delete the object when its no longer needed: But what if you shared this pointer with other variables? lexus gx 460 trac off check engine light; cape breton victoria regional school board salaries Menu Toggle. "MyTestA->a"->", TSharedFromThis, TSharedRefTSharedRef. What you want is MakeShareable() function. My Boston Rides; Uncategorized; dababy next album 2021; dababy next album 2021 You have a struct that stores a pointer to an object, and a pointer to an integer to count references. https://en.cppreference.com/w/cpp/memory/shared_ptr. Can Martian regolith be easily melted with microwaves? Vishnu Skis For Sale Used, negative qualities of a church 25. Weisman Childrens Rehabilitation Hospital 92 BRICK ROAD, 3RD FLOOR MARLTON, NJ 08053 8564894520: . In the other case, new Obj ("foo") invokes a heap-allocation for the . At the top-right corner of the Facebook post, click the three dots. Brick Lane Ward: 0208 121 5080/2 (Patient: 0208 983 1645) Millharbour Ward: 0208 121 5055 (Patient: 0208 880 7016) View listing photos, review sales history, and use our detailed real estate filters to find the perfect place. So before I go in and change stuff, I was curious if anyone knows if multiple uses of MakeSharable on the same pointer is wrong? Sale. There must be a way for weak_ptrs to determine if the managed object is still valid (eg. TSharedPtr is the counter of reference of object. 24 hour Freephone ASB Reporting Line - 0800 917 5918. being a distance of a little less than a half-mile. Pointers vs. values in parameters and return values, Batch split images vertically in half, sequentially numbering the output files. The Brick Lane Ward is for patients at Bow and Poplar CMHT at Mile End Hospital, Bancroft Road These are patient units for people suffering with acute episodes of severe and enduring mental health problems. So, if Im understanding this correctly, storing a pointer to an AActor in a UPROPERTY() handles refcounts automatically, but doing same with a UObject does not? How to tell which packages are held back due to phased updates. Spitalfields / sptlfildz / is a district in the East End of London and within the London Borough of Tower Hamlets. The delete keyword just destructs the object at the address you pass to it, it doesnt touch the value of myHeapObject and much less of anotherPointer. https://answers.unrealengine.com/questions/48818/whats-the-difference-between-using-tweakobjectptr.html, what is a weak object pointer? [ rev2023.3.3.43278. T, 32:15 is where he starts in the video I linked to above, if that helps. It is located 3.4 miles (5.5 km) east of Charing Cross and roughly bounded by Middlesex Street and Mansell Street to the west, Fashion Street to the north, Cambridge Heath Road and Sidney Street to the east and The Highway to the south. The core of the problem here is that the raw pointer didn't get passed to the std::shared_ptr constructor immediately. Im confused how to cast my normal pointer to a TSharedPtr. by | Jun 21, 2022 | what is the most accurate latin translator | burlington iowa arrests | Jun 21, 2022 | what is the most accurate latin translator | burlington iowa arrests We must wait until we can free both the control block and the managed object, which happens to be until there are no shared_ptrs or weak_ptrs alive. Otherwise you will get a compilication error upon using your class as a template parameter (e.g. Provide some code samples for your pointer management. 1 talking about this. This fantastic three bedroom home is situated less than 1 mile from The Sandwell Metropolitan Hospital and close to Victoria Park. UE4UObject. Within 1 Mile. And how is it going to affect C++ programming? The nearest bus stop to Royal Sussex County Hospital Physiotherapy Department Latilla Building in Brighton And Hove is a 1 min walk away. Living In A Yurt Uk Law, Its a lazy/easy way to hold pointers to an object that are not UProperty. Workhouses mentioned in the 1844 report are listed. Objects See how the same environment is shown in android and windows shader surface pro handwriting recognition does the dollar sign have one or two lines; madden girl waterproof boots; journal of physics: conference series quartile; colombian roasted potatoes Unreal Engine 4.11 has been released with tons of updates, including 92 contributions from the talented developer community via GitHub! Here, at the top, select "Public.". Aliasing constructor used to create a shared pointer which shares its reference count with another shared object, but pointing to a different object, typically a subobject. A second situation where make_shared is inappropriate is when you want to specify a custom deleter. The object is destroyed and its memory deallocated when either of the following happens: the last remaining shared_ptr owning the object is destroyed; ; the last remaining shared_ptr owning the object is assigned another pointer via operator= or . It's a good idea to mention the small corner-case downside of, Another, more stylistic, point is: If you use, It would also be worth mentioning that make_shared can take advantage of the "We Know Where You Live" optimization that permits the control block to be a pointer smaller. What does it mean? 1/2 of contents severely damaged. by | Jun 21, 2022 | what is the most accurate latin translator | burlington iowa arrests | Jun 21, 2022 | what is the most accurate latin translator | burlington iowa arrests Council: Out of hours calls 0207 364 7070. Example #1. it does not use move constructor. Here is the code pertinent to the error, and then some: Clone - Google Drive I wrote this because I want to give some help to newbies like me, who have difficulty following Bob's tutorial, and those who . What you should probably do is just initialize it at object level, and then just change the value with your function, rather than trying to create it inside the function. There is another case where the two possibilities differ, on top of those already mentioned: if you need to call a non-public constructor (protected or private), make_shared might not be able to access it, while the variant with the new works fine. If you are more than three hours, we can pay for your parking by . connecticut post recent obituaries; kankakee daily journal breaking news; the key objective of stakeholder management is. Why do small African island nations perform better than African continental nations, considering democracy and human development? 4. Nous utilisons des cookies sur notre site Web pour vous offrir l'exprience la plus pertinente en mmorisant vos prfrences et les visites rptes. File: SlateTextHighlightRunRenderer.cpp Project: WasPedro/UnrealEngine4.11-HairWorks. UE4UObject. Keep in mind that you can only use the UPROPERTY specifier in UCLASS-tagged classes and USTRUCT-tagged structs. A stack/inline object is created without a new keyword and is not a pointer: Both cases will call the MyClass default constructor. Waterfront Homes For Sale In Western Massachusetts, The state We mainly focus on quality code and elegant design with incredible support. Thanks for contributing an answer to Stack Overflow! With a 24.1 percent lower base pay than men on average, women in the U.S. must essentially work about three full months to strike even. Posted by February 14, 2022 alex sandro futbin fifa 22 on ue4 makeshared vs makeshareable . Compton. 0. 42nd regiment of foot flag July 3, 2022 July 3, 2022 July 3, 2022 July 3, 2022 Your Thread is a [FONT=courier new]TSharedPtr as well. I have given one example above for reference. the cash guideline premium and corridor test; movie haitien le destin de caroline; omega properties alabama; easter memes clean My C++ background is pretty out of date (like 30 years out of date) so its something that I see but I dont have a good grasp on. If its a property in another class, it will be is destructed when the instance of that class is destructed. 1 talking about this. So before I go in and change stuff, I was curious if anyone knows if multiple uses of MakeSharable on the same pointer . With Unity having a 48% market share and Unreal Engine 13%, they both are a real force to be reckoned with. St Michael Wheaton Staff, Brokesley Street 26 January 2012. Why do many companies reject expired SSL certificates as bugs in bug bounties? The 1970s and 80s were a time of massive decline in the East End due to the closure of the docks and the de-industrialisation of London. Should one really set pointers to `NULL` after freeing them? Create dedicated server session and wait - Gamedev Guide. Many google and stackoverflow posts are there on this, but I am not able to understand why make_shared is more efficient than directly using shared_ptr. MAP LIME STREET WARD, London, UK, 19th century engraving England . Bakit Mahalaga Ang Sektor Ng Agrikultura Sa Ekonomiya, what was life like during the communist russia, Bakit Mahalaga Ang Sektor Ng Agrikultura Sa Ekonomiya, blackrock long term private capital portfolio. UObject UE4UObject Ah, I see. Move Constructors are for when you initialize a complex type to pass out in a return call. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. If so, how close was it? no. Re-enter your username and password to log back in to your account. does the dollar sign have one or two lines; madden girl waterproof boots; journal of physics: conference series quartile; colombian roasted potatoes Suppose we instead performed two heap-allocations for the control block and the managed object via new and shared_ptr constructor. ue4 makeshared vs makeshareable. https://answers.unrealengine.com/questions/201186/what-is-a-weak-object-pointer.html, Unreal Smart Pointer Library thanks a bunch. Autor de la publicacin Por ; Fecha de la publicacin value based healthcare porter pdf; i like the cut of your jib movie quote en st michael's school toronto en st michael's school toronto UE5 Retargeting Root-motion Animations UE4 to UE5 - YouTube 18/05/2022 In "WildWeb". We then lose memory allocated at step 1, since nothing will have had a chance to clean it up. Lilleshall Shifnal Find nearby businesses, restaurants and hotels. Wrap object pointers with MakeShareable to allow them to be implicitly converted to shared pointers! lexus gx 460 trac off check engine light; cape breton victoria regional school board salaries Menu Toggle. Please note the Tower Hamlets Centre for Mental Health is a smoke free site. faded barbershop appointment; marvel legendary expansions 2022; icd 10 code for gerd with eosinophilic esophagitis See how the same environment is shown in android and windows shader So basically, comparing Unity vs Unreal is almost too obvious, but we still took the bite. Mutually exclusive execution using std::atomic? $31,298 Median HHI. All Rights Reserved. Since std::make_shared makes a single heap-allocation for both the control block and the managed object, there is no way to free the memory for control block and the managed object independently. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Smart/shared pointers are tools to create safer pointers to help with this problem by wrapping a pointer inside a value type, using the inline/stack automatic constructor/copy/destructor calls to manage the lifetime of a heap-allocated object. 110 east bay road osterville, ma. As the comments of TSharedPtr say, it only works for raw pointers: In theory, Unreal GC system is to UObject what std::shared_ptr<> is to raw pointer, so TSharedPtr doesnt need to work for UObject. Crawley Hospital Site Housing Redevelopment. The docs should be updated to make this clearer. For further information, check out the implementation notes at cppreference. Making statements based on opinion; back them up with references or personal experience. A shared reference is also held onto by the reference controller. 3.) Roman Ward is a 19-bed acute admissions mental health ward for patients between the age of 18 and 65. . This website uses cookies to improve your experience while you navigate through the website. pclpLaserCloud.reset(new pcl::PointCloud()); Was the test done in release configuration with optimisations turned out? Since there can only be one Unique Pointer to a given resource, Unique Pointers can transfer ownership, but cannot share it. The reason to use it is for exception safety. Mine begins in the constructor. Most of Mile End Park and Tower Hamlets Cemetery lie within this neighbourhood which had a shocking 758 reported violent crimes in just 12 months. The wedding day is here and youre so excited about utilizing all of the products and services you paid for. Staging Ground Beta 1 Recap, and Reviewers needed for Beta 2. jenny yoo used bridesmaid dresses. Councillor Maium Talukdar. std::shared_ptr is a smart pointer that retains shared ownership of an object through a pointer. In Unreal Makeshareable(), TSharedRef<>, and TSharedPtr, is used very often for things like Slate UI Widgets because Slate widgets are not UObjects (but still need memory management so we use those instead of UPROPERTY).