weak-ptr

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STL implementation of MVP design pattern

I\'m trying to implement an MVP pattern using STL and I have used *shared_ptr* and *weak_ptr* for \"breaking the cycle\" when having recurrent references.[详细]

2023-04-01 21:33 分类：问答
static_pointer_cast for weak_ptr

In c++0x, there is a std::static_pointer_cast for std::shared_ptr, but there is no equivalent method for开发者_如何学JAVA std::weak_ptr. Is this intentional, or an oversight? If an oversight, how woul[详细]

2023-03-07 16:19 分类：问答
std::shared_ptr and double callback

I have some logic where I am using std::shared_ptrs to objects in an inheritance hierarchy. At one point I need to handle these objects depending on their real type, so I am using a double dispatch (i[详细]

2023-02-26 13:16 分类：问答
How does weak_ptr work?

I understand how to use weak_p开发者_JAVA百科tr and shared_ptr. I understand how shared_ptr works, by counting the number of references in its object. How does weak_ptr work? I tried reading through t[详细]

2023-02-26 06:45 分类：问答
Threading a Shared Model with pointers

I have a vector of pointers to objects created with new. Multiple threads access this vector 开发者_高级运维in a safe manner with various gets/sets. However, a thread may delete one of the objects, in[详细]

2023-02-15 02:48 分类：问答
C++ boost::shared_ptr & boost::weak_ptr & dynamic_cast

I have something like this: enum EFood{ eMeat, eFruit }; class Food{ }; class Meat: public Food{ void someMeatFunction();[详细]

2023-02-10 05:23 分类：问答
shared_ptr and weak_ptr differences

I am reading Scott Meyers \"Effective C++\" book. It was mentioned that there are tr1::shared_ptr and tr1::weak_ptr act like built-in pointers, but they keep track of how many tr1::shared_ptrs point t[详细]

2023-02-10 00:51 分类：问答
Avoiding indirect cyclic references when using shared_ptr and weak_ptr

I\'m currently putting together an application that relies heavily on shared_ptr and everything looks good so far - I\'ve done my homework and have a pretty good idea of some of the pitfalls of using[详细]

2022-12-17 09:07 分类：问答
boost, shared ptr Vs weak ptr? Which to use when?

In my current project I am using boost::shared_ptr quite exten开发者_C百科sively. Recently my fellow team mates have also started using weak_ptr. I don\'t know which one to use and when.[详细]

2022-12-16 02:41 分类：问答