Singleton Destructors

Question

Should Singleton objects that don\'t use instance/reference counters be considered memory leaks in C++?

Without a counter that calls for explicit deletion of the singlet

Answer 1

I ran into an issue like this and I think this should work even if the main thread exits first and takes the static objects with it. Instead of this:

Singleton &get_singleton() {
   static Singleton singleton;
   return singleton;
}

I'm thinking

Singleton &get_singleton() {
   static std::shared_ptr singleton = std::make_shared();
   static thread_local std::shared_ptr local = singleton;
   return *local;
}

so when the main thread exits and takes singleton with it, each thread still has its own local shared_ptr that keeps the one Singleton alive.