Fixed eliminating empty graph

2013-07-16 20:22:02 +00:00 · 2013-07-16 20:22:02 +00:00 · 3f73d7801c
parent 132cc2ea72
commit 3f73d7801c
1 changed files with 1 additions and 1 deletions
--- a/gtsam/inference/EliminationTreeUnordered-inst.h
+++ b/gtsam/inference/EliminationTreeUnordered-inst.h
@ -144,7 +144,7 @@ namespace gtsam {
    }

    // Find roots
-    assert(parents.back() == none); // We expect the last-eliminated node to be a root no matter what
+    assert(parents.empty() || parents.back() == none); // We expect the last-eliminated node to be a root no matter what
    for(size_t j = 0; j < n; ++j)
      if(parents[j] == none)
        roots_.push_back(nodes[j]);