Method RefCountClass

tests/gtest_blackboard.cpp:182–185

{
public:
  RefCountClass(std::shared_ptr<int> value) : sptr_(std::move(value))
  {
    std::cout << "Constructor: ref_count " << sptr_.use_count() << std::endl;
  }

  RefCountClass(const RefCountClass& from) : sptr_(from.sptr_)
  {