在C ++ 0x中调用lambda时访问冲突?

时间:2011-05-02 01:34:19

标签: visual-studio-2010 lambda c++11

我在调用回调时收到访问冲突错误:

typedef std::function<void(INT_PTR)> DIALOG_CALLBACK;
//Declaration
string userId=getUserId();
DIALOG_CALLBACK callTest=[userID, this] (INT_PTR) -> void{};//Does nothing yet
CustomDialog dlg=new CustomDialog("Are you sure you wish to run this operation", callTest);
....
//Definition
class CustomDialog: DialogBase{
public:
    DIALOG_CALLBACK callback;
    ....
}
//Call
void CustomDialog::OnOK(){
    callback(1);//Error occurs within call
}

崩溃发生在标准文件xxfunction

_Ret operator()(_ARG0_A0) const
{   // call through stored object
    if (_Impl == 0)
        _Xfunc();
        return (_Impl->_Do_call(_A0_A1));//Crashes on this line
}

链接:

1 个答案:

答案 0 :(得分:0)

看来我在某个时候删除了这个指针,这就是造成这个问题的原因。