From 6f41b121d01195cb30c72f4cc2bd49c52a9f248b Mon Sep 17 00:00:00 2001
From: vng <viktor.govako@gmail.com>
Date: Tue, 10 Jan 2012 18:58:43 +0300
Subject: [PATCH] Fix VarSerialVector serialization for empty values.

---
 coding/var_serial_vector.hpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/coding/var_serial_vector.hpp b/coding/var_serial_vector.hpp
index a60478810c..f832d51baa 100644
--- a/coding/var_serial_vector.hpp
+++ b/coding/var_serial_vector.hpp
@@ -28,7 +28,11 @@ void WriteVarSerialVector(ItT begin, ItT end, TDstStream & dst)
     WriteToSink(dst, offsets[i]);
 
   for (ItT it = begin; it != end; ++it)
-    dst.Write(&(*it)[0], it->size() * sizeof((*it)[0]));
+  {
+    typename ItT::value_type const & v = *it;
+    if (!v.empty())
+      dst.Write(&v[0], v.size() * sizeof(v[0]));
+  }
 }
 
 template <class WriterT> class VarSerialVectorWriter