- dynamic_cast<Paper_column*> (b)->rank_);
}
+bool
+Paper_column::less_than (Grob *const &a,
+ Grob *const &b)
+{
+ Paper_column *pa = dynamic_cast<Paper_column*> (a);
+ Paper_column *pb = dynamic_cast<Paper_column*> (b);
+
+ return pa->rank_ < pb->rank_;
+}
+
Moment
Paper_column::when_mom (Grob *me)
{
"page-turn-permission "
"shortest-playing-duration "
"shortest-starter-duration "
+ "spacing "
"used "
"when ");