From df604e4f499edcb8ddc17692685cf736067a95f2 Mon Sep 17 00:00:00 2001
From: Gael Guennebaud <g.gael@free.fr>
Date: Fri, 11 Jul 2014 16:24:49 +0200
Subject: [PATCH] Fix inner iterator on an outer-vector

---
 Eigen/src/SparseCore/SparseBlock.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Eigen/src/SparseCore/SparseBlock.h b/Eigen/src/SparseCore/SparseBlock.h
index cbcd7a299..491cc72b0 100644
--- a/Eigen/src/SparseCore/SparseBlock.h
+++ b/Eigen/src/SparseCore/SparseBlock.h
@@ -523,6 +523,7 @@ namespace internal {
       while(m_outerPos<m_end)
       {
         m_outerPos++;
+        if(m_outerPos==m_end) break;
         typename XprType::InnerIterator it(m_block.m_matrix, m_outerPos);
         // search for the key m_innerIndex in the current outer-vector
         while(it && it.index() < m_innerIndex) ++it;