rv = server->SetAsSubscribed((const char *)aElement);
rv = server->SetAsSubscribed(aElement.get());
setAsSubscribedFunction(nsCString &aElement, void *aData){    nsresult rv = NS_OK;    nsNntpIncomingServer *server;    server = (nsNntpIncomingServer *)aData;    NS_ASSERTION(server, "no server");    if (!server) {        return PR_FALSE;    }     rv = server->SetAsSubscribed((const char *)aElement);    NS_ASSERTION(NS_SUCCEEDED(rv),"SetAsSubscribed failed");    return PR_TRUE;}