C++, is it possible to call a constructor directly, without new?

Question

Can I call constructor explicitly, without using new, if I already have a memory for object?

class Object1{
    char *str;
public:
    Object1(c         


        

Answer 1

Yes, using placement new - as above, but you might consider having a second factory class to manage the storage, even if it means copying an object. memcpy() is generally cheap for small objects.