WebbSo the best way to return a shared_ptr is to simply return by value: shared_ptr Foo () { return shared_ptr (/* acquire something */); }; This is a dead-obvious RVO opportunity … Webb26 feb. 2011 · It solves the issue of the shared_ptr being static by only creating shared_ptrs when a reference to the object is requested. It also gives the possibility of creating another singleton after the first one has been destroyed, so eventually you can create as many singletons as you want but only have one at a time. So what do you guys think?

: shared_ptr comparison (<=>) #3646 - Github

Webb14 nov. 2024 · So the best way to return a shared_ptr is to simply return by value: shared_ptr Foo () { return shared_ptr (/* acquire something */); }; This is a dead … Webbshared_ptr objects can only share ownership by copying their value: If two shared_ptr are constructed (or made) from the same (non-shared_ptr) pointer, they will both be owning … godfather\\u0027s menu online

Should we pass a shared_ptr by reference or by value?

WebbThe above code demonstrates how smart pointers work: Line 9: The constructor allocates memory for the raw pointer and initializes it with the provided value. Line 15: The destructor frees the allocated memory. Line 21: We overload the * operator to provide access to the raw pointer. This operator returns a reference so we can read and write to the smart … WebbThe confusion arises because a typical shared_ptr does use atomic operations to manipulate its reference count - but that's only to support the scenario where different shared_ptr objects point to the same underlying object … bonzo dog band intro outro