class Whatever
{
public:
virtual ~Whatever();
protected:
Whatever();
virtual void SomeMethod();
void OnEventOccurred(int x);
std::vector<boost::signals2::scoped_connection> boostSignalConnections_;
}
// .cpp
Whatever::SomeMethod()
{
...
boostSignalConnections_.push_back(
anObject->AddEventOccurredObserver(
std::bind(&Whatever::OnEventOccurred,
this, std::placeholders::_1)));
...
}
(注意AddEventOccurredObserver
只是委托boost::signals2::connect()
并返回boost::signals2::connection
)
我收到以下错误。很难解释模板错误,但似乎错误是在成员声明中引起的std::vector<boost::signals2::scoped_connection> boostSignalConnections_;
...\vc\include\xmemory(202): error C2248:
'boost::signals2::scoped_connection::scoped_connection' :
cannot access private member declared in class 'boost::signals2::scoped_connection'
...\boost_1_47\boost\signals2\connection.hpp(234) : see declaration of
'boost::signals2::scoped_connection::scoped_connection'
...\boost_1_47\boost\signals2\connection.hpp(210) :
see declaration of 'boost::signals2::scoped_connection'
...\vc\include\xmemory(201) : while compiling class template member function
'void std::allocator<_Ty>::construct(boost::signals2::scoped_connection *,_Ty &&)'
with
[
_Ty=boost::signals2::scoped_connection
]
我已经搜索过,我认为这可能与 scoped_connection 不可复制有关?我不知道。我使用 scoped_connection 的原因是因为这个 SO 问题: Handle connection/disconnection of many signals/slots with boost::signals2
更新
仅供参考,当我从 更改scoped_connection
为connection
时:std::vector<boost::signals2::connection> boostSignalConnections_;
。我使用的全部原因scoped_connection
是它们会在破坏时自动断开连接,而我相信 aconnection
不会。但是,我可以遍历集合并手动断开每个集合。