Top 3 smart-pointer open source projects

Smart pointer for any movable objects. When trackable object moved/destroyed, trackers updated with new object's pointer.

Header-only C++17 library enables to track object instances with varied policies and gives you to control exceptions on policy rule break.

value-ptr-lite - A C++ smart-pointer with value semantics for C++98, C++11 and later in a single-file header-only library