| 147 | return arc.idx == INVALID_INDEX; |
| 148 | } |
| 149 | static inline struct arc node_rev_adjacency_next(const struct graph *graph, |
| 150 | const struct arc arc) |
| 151 | { |
| 152 | return arc_dual(graph, |
| 153 | node_adjacency_next(graph, arc_dual(graph, arc))); |
| 154 | } |
| 155 | |
| 156 | /* This call adds an arc to the graph, it adds also the dual automatically. |
| 157 | * An arc cannot be added twice, if the caller tries to do add the same arc |
nothing calls this directly
no test coverage detected