From ef2b54f422a68ca40e9aedb07969228141ce1ede Mon Sep 17 00:00:00 2001
From: Gael Guennebaud <g.gael@free.fr>
Date: Thu, 3 Sep 2015 11:04:06 +0200
Subject: Fix AMD ordering when a column has only one off-diagonal non-zero
 (also fix bug #1045)

---
 Eigen/src/OrderingMethods/Amd.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'Eigen/src/OrderingMethods')

diff --git a/Eigen/src/OrderingMethods/Amd.h b/Eigen/src/OrderingMethods/Amd.h
index 63d996cb4..323255e0a 100644
--- a/Eigen/src/OrderingMethods/Amd.h
+++ b/Eigen/src/OrderingMethods/Amd.h
@@ -150,7 +150,7 @@ void minimum_degree_ordering(SparseMatrix<Scalar,ColMajor,StorageIndex>& C, Perm
       }
    
     d = degree[i];
-    if(d == 1)                      /* node i is empty */
+    if(d == 1 && has_diag)           /* node i is empty */
     {
       elen[i] = -2;                 /* element i is dead */
       nel++;
-- 
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