Helper function. * Given an arc idx, return the dual's idx in the residual network. */
| 374 | /* Helper function. |
| 375 | * Given an arc idx, return the dual's idx in the residual network. */ |
| 376 | static struct arc arc_dual(struct arc arc) |
| 377 | { |
| 378 | arc.idx ^= (1U << ARC_DUAL_BITOFF); |
| 379 | return arc; |
| 380 | } |
| 381 | /* Helper function. */ |
| 382 | static bool arc_is_dual(struct arc arc) |
| 383 | { |
no outgoing calls