Yes, make sense. Thanks.
Cheers,
Yongsheng
-----Original Message-----
From: Ohly, Patrick
Sent: Wednesday, October 14, 2009 3:09 PM
To: Zhu, Yongsheng
Cc: SyncEvolution
Subject: RE: [SyncEvolution] gdbus-cxx and methods in base classes
On Wed, 2009-10-14 at 04:29 +0100, Zhu, Yongsheng wrote:
> > Yongsheng, can you
> > review this so? It's ready to replace the current code in the "dbus-api"
> > branch.
> New solution uses boost bind and function to solve the issue. It should be
> workable.
> But I have a concern about private inheritance and boost bind.
> When boost does binding for a instance and a function member of its base
> classes,
> if the class of the instance privately or protectedly
> inherits from its base class, boost binding could not access that function
> and
> raises errors.
The base class is only inaccessible in DBusObjectHelper. The class
registering the method in the base class has access to it. So this
example fails, as you said:
class Test2
{
public:
void test2() {}
};
class DBusTest : public Test, private Test2
{
DBusTest(DBusConnection *conn) :
....
{
m_object.add(this, &Test2::test2, "Private");
....
But this code here works:
m_object.add(static_cast<Test2 *>(this), &Test2::test2, "Private");
--
Best Regards, Patrick Ohly
The content of this message is my personal opinion only and although
I am an employee of Intel, the statements I make here in no way
represent Intel's position on the issue, nor am I authorized to speak
on behalf of Intel on this matter.
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