Webbstd::dynamic_pointer_cast doesn't return a Transform, it returns a std::shared_ptr so your cast should look something like: … Webbstd::shared_ptr is a smart pointer that retains shared ownership of an object through a pointer. Several shared_ptr objects may own the same object. The object is destroyed …

[Solved]-How to cast a vector of shared_ptrs of a derived class to …

WebbThe above will work but may be inconvenient. We don't always know which derived classes we are going to serialize when we write the code to serialize through a base class … Webb12 aug. 2024 · std::shared_ptr b_ptr = std:: make_shared (); b_ptr-> print (); auto d_ptr = std:: dynamic_pointer_cast (b_ptr); d_ptr-> print (); return 0; } // … pulmonary embolism treatment lovenox

GCC STL 源码学习（七） —— future & promise - 知乎

Webb14 juni 2024 · That seems to be because the compiler is being unable to cast the pointer p1 appropriately. if you use p1.get () instead of just p1 it should work just fine. There are … WebbCasting a base class object to a derived class object is usually not desired design. Though, it is commonly acceptable as a shortcut approach. You can consider using Double … WebbFinally the data can be loaded to newly created instance of the correct type. As can be seen in demo.cpp, serialization of pointers to derived classes through a base clas pointer may … seaway marketplace of toledo