cosa succede se l'elemento non esiste

[todo]

BackupSoftwareServer/Session.cpp

Lines 347 to 352 in 1d6d53b

	// todo: cosa succede se l'elemento non esiste
	Session::subscribers_.erase(this->username);
	}
	std::shared_ptr<Session> Session::create(tcp::socket socket, boost::asio::ssl::context &context) {
	return std::make_shared<Session>(std::move(socket), context);

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This issue was generated by todo based on a todo comment in 1d6d53b when #45 was merged. cc @stelosca96.