diff options
| -rw-r--r-- | src/tsort.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/src/tsort.c b/src/tsort.c index 2097eca95..dca29189b 100644 --- a/src/tsort.c +++ b/src/tsort.c @@ -329,8 +329,12 @@ scan_zeros (struct item *k) this, but that is no problem. If we encounter an item that we have encountered before, we know that we've found a cycle. All we have to do now is retrace our steps, printing out the items until we - encounter that item again. (This does not have to be the item that - we started at in the first place.) Since the order */ + encounter that item again. (This is not necessarily the item that + we started from originally.) Since the order in which the items + are stored in the tree is not related to the specified partial + ordering, we may need to walk the tree several times before the + loop has completely been constructed. If the loop was found, the + global variable LOOP will be NULL. */ static int detect_loop (struct item *k) |