在我看来，您的容器看起来像是在重新实现任何的功能。我会亲自将shared pointer存储在any中，这样就可以...
std::any_caststd::string(a) // yield copy of the value std::any_caststd::string&(a); // write value by reference std::any_cast<const std::string&>(a); // read-access by reference 如果把std::any中所包含的类型转换为移除了传递类型的顶层引用后的类型ID,则转换类型是适合的。如下: c...
一个不注意,没发现 local_ 的类型不是 std::any . 修正 concept 检查。microcai requested a review from Jackarain October 14, 2024 15:25 promsietype 的 local_ 类型是 std::shared_ptr<std::any>, 修正之 313f4bd microcai force-pushed the fix_is_awaitable_promise_type_v branch from 7cf9f...
std::shared_ptr<FrameHeader> header; any body;public:Frame(conststd::shared_ptr<FrameHeader> header,conststd::shared_ptr<void> body);std::shared_ptr<FrameHeader>get_header();anyget_body(); }; ...autoreal_obj_ptr = any_cast<shared_ptr<RealClass>>(frame.get_body());...
Boost的智能指针库smart_ptr包含了6种智能指针,如下圈住部分所示: 这里来使用一下scoped_ptr指针,它与C++98的智能指针(auto_ptr,在C++11后被抛弃,因此不推荐使用)和C++11新加的unique_ptr(用来取代auto_ptr)很类似,能够保证动态创建的对象在任何时候都可被正确删除。其声明如下:( 可以看到,智能指针是一个对象,而...
();// cleanup any existing data67this->ptr=std::exchange(dyingObj.ptr,nullptr);68this->block=std::exchange(dyingObj.block,nullptr);69/*70this->ptr = dyingObj.ptr; // share the underlying pointer71this->block = dyingObj.block;7273dyingObj.ptr = nullptr; // clean the dying object74...
std::shared_ptr<T>::~shared_ptr From cppreference.com <cpp |memory |shared ptr If*thisowns an object and it is the lastshared_ptrowning it, the object is destroyed through the owned deleter. After the destruction, the smart pointers that shared ownership with*this, if any, will...
(__py),*__n);}}}#ifdef _MANAGED// Avoid C4793, ... causes native code generationstruct __sp_any_pointer{template<classT>__sp_any_pointer(T*){}// NOLINT: runtime/explicit};inlinevoid__enable_shared_from_this_with(__sp_any_pointer,__sp_any_pointer,__sp_any_pointer){}#else/...
Run this code #include <iostream>#include <memory>structFoo{Foo(intin):a(in){}voidprint()const{std::cout<<"a = "<<a<<'\n';}inta;};intmain(){autoptr=std::make_shared<Foo>(10);ptr->print();(*ptr).print();} Output: ...
What I think happened is that the libraries I'm using are not using any C++11 features that the STLport is missing. They are only using C++11 features that the gcc compiler supports. I need the gnuStl to support the features that I am using. My solution was to use the boos...