error: lvalue required as unary ‘&’ operand

[Munde Pravin]

i wrote this function in class RoutingExperiment
void RoutingExperiment::ChangePosition(Ptr<Node> node, double step, double speed)
{
    Ptr<MobilityModel> mob = node->GetObject<MobilityModel>();
    Vector v = mob->GetPosition ();
    if(direction==0 && v.x<500)        //to go left
        v.x+=step*speed;
    else if(direction==1 && v.x>0)        //to go right
        v.x-=step*speed;
    else
        return;
    mob->SetPosition(v);
}
in main
Simulator::Schedule(Seconds(0.2), &RoutingExperiment::ChangePosition(adhocNodes.Get(0),2.0,speed),this,Simulator::Now ().GetSeconds ());

and getting this error
error: lvalue required as unary ‘&’ operand

[Tommaso Pecorella]

Hi,

the error doesn't seems to belong to the lines you posted.

The compiler should give you the exact location of the error, please double check the lines just before the error.

T.

[Munde Pravin]

Hi,
Thanks for replying ,
i have cross-checked the whole code and the error as well,
It seems that i am getting error because of the line Simulator::Schedule only
Regards

[pdbarnes]

Looks like it should be:
Simulator::Schedule(Seconds(0.2),
&RoutingExperiment::ChangePosition,
adhocNodes...

Notice that the arguments to ChangePosition() are actually passed to Schedule(), which caches them until the event is executed.

Peter

[Munde Pravin]

Hello Sir,
I tried these changes and it worked,
Thank you for replying.