From d8fa7f3e9b8127911996c36f477bcae3831f7708 Mon Sep 17 00:00:00 2001
From: graehl <graehl@ec762483-ff6d-05da-a07a-a48fb63a330f>
Date: Tue, 31 Aug 2010 01:56:56 +0000
Subject: l2r bugfixes

git-svn-id: https://ws10smt.googlecode.com/svn/trunk@635 ec762483-ff6d-05da-a07a-a48fb63a330f
---
 decoder/inside_outside.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'decoder/inside_outside.h')

diff --git a/decoder/inside_outside.h b/decoder/inside_outside.h
index 73d4ec6a..e6289176 100644
--- a/decoder/inside_outside.h
+++ b/decoder/inside_outside.h
@@ -55,7 +55,7 @@ WeightType Inside(const Hypergraph& hg,
       *cur_node_inside_score += score;
     }
   }
-  return inside_score.back();
+  return inside_score.empty() ? WeightType(0) : inside_score.back();
 }
 
 template<class WeightType, class WeightFunction>
-- 
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