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3
votes
3answers
306 views

Possible alternatives to copy constructors

In my C++ project I am relying on some libraries that do memory management for me. I make wrapper classes, for ease of use and memory safety, for example the class below. Note that this is a much ...
5
votes
0answers
121 views

Key / Value store development porting to modern C++

I am developing a database server similar to Cassandra. Development were started in C, but things became very complicated without classes. Currently I ported everything in C++11, but I am still ...
3
votes
2answers
120 views

C++ using shared_ptr with API [closed]

I'm building a library that generates a couple of types of objects that can be used by user code and the library. To keep track of these objects, I'd like to use shared_ptr's, so I can build in some ...
3
votes
1answer
1k views

raw, weak_ptr, unique_ptr, shared_ptr etc… how to choose them wisely

There is a lot of pointers in C++ but to be honest in 5 years or so in c++ programmation (specifically with the Qt Framework) I only use the old raw pointer : SomeKindOfObject *someKindOfObject = ...
3
votes
3answers
220 views

Polymorphic template container: shared_ptr vs reference_wrapper

Assuming we have two classes: class A { ... } class B : public A { ... } Would it be better to write std::deque<shared_ptr<A> > container; or ...
1
vote
1answer
383 views

C++ Templates where the type is a shared_ptr

When creating template classes in C++, if the type upon which the template will be specialized is intended to be a shared_ptr type, is it better to make T a shared_ptr type or make T a non-pointer ...
3
votes
2answers
160 views

Will destructing a large list overflow my stack?

Consider the following singly linked list implementation: struct node { std::unique_ptr<node> next; ComplicatedDestructorClass data; } Now, suppose I stop using some ...
0
votes
3answers
752 views

C++ Chess board design and smart pointers [closed]

I wrote a Chess engine in Java and I am porting it over to C++. I am new to C++. The idea: I have a Board object which holds a 2-dimensionnal array of Piece objects. Queen, Rook, Bishop, etc are ...
0
votes
1answer
51 views

confusion regarding handling of new smart pointers on stack frames?

Let me try to elaborate it. Stack Frame: When we execute any function it create stack where all local variables and instructions reside. And Smart Pointer: smart pointer like std::unique_ptr allows ...
21
votes
5answers
4k views

Why can't Java/C# implement RAII?

Question: Why can't Java/C# implement RAII? Clarification: I am aware the garbage collector is not deterministic. So with the current language features it is not possible for an object's Dispose() ...
2
votes
2answers
267 views

How do I get rid of cyclic references in this design?

I have 3 classes: Meeting, Project and Agenda. A Project contains all sort of information + a list of meetings. The Agenda contains a list of upcoming Meetings. A Meeting contains some data + a list ...
1
vote
1answer
317 views

gtkmm manage/add vs smart pointers:

gtkmm provides lifetime management of widgets using Gtk::Widget* aWidget = Gtk::manage(new Widget()); Gtk::Widget.add(*aWidget); This delegates lifetime management of aWidget to its container ...
9
votes
4answers
519 views

Is Non-Deterministic Resource-Management a Leaky Abstraction?

From what I can see, there are two pervasive forms of resource-management: deterministic destruction and explicit. Examples of the former would be C++ destructors and smart pointers or Perl's DESTROY ...
4
votes
2answers
1k views

Smart Pointers inside class vs Normal Pointers with Destructor

Regarding pointers which are members of classes. Should they be of a smart pointer type or is it enough to simply deal with them in the destructor of the class they are contained in?
30
votes
9answers
7k views

Why Garbage Collection if smart pointers are there

These days, so many languages are garbage collected. It is even available for C++ by third parties. But C++ has RAII and smart pointers. So what's the point of using garbage collection? Is it doing ...