()
| 548 | |
| 549 | // Swap inputs without letting either input go dead during the swap. |
| 550 | Node swap12() { |
| 551 | unlock(); // Hash is order dependent |
| 552 | Node tmp = in(1); |
| 553 | _inputs.set(1,in(2)); |
| 554 | _inputs.set(2,tmp); |
| 555 | return this; |
| 556 | } |
| 557 | |
| 558 | /** |
| 559 | * Does this node contain all constants? Ignores in(0), as is usually |