>> + list_add_tail(&queue.list, >> + alter >> + ? (sma->complex_count >> + ? &sma->pending_alter >> + : &curr->pending_alter) >> + : &curr->pending_const); > > Just no. This is making the code harder to comprehend This can be according to your current view. > with no advantage. I propose to take additional aspects into account for the interpretation of such source code. The shown design direction can provide benefits which might get a lower value for the software development attention so far. >> + list_add_tail(&queue.list, >> + alter ? &sma->pending_alter : &sma->pending_const); Can this code variant look more succinct? Regards, Markus