From aab8f883705f9cd16fb1f747bd1a5deb793e4728 Mon Sep 17 00:00:00 2001
From: Lev Dragunov <l.dragunov@corp.mail.ru>
Date: Mon, 11 Apr 2016 16:56:26 +0300
Subject: [PATCH] Osrm 2 feature map fix for empty graphs.

---
 routing/osrm2feature_map.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/routing/osrm2feature_map.cpp b/routing/osrm2feature_map.cpp
index f9eac00054..8924a57ec1 100644
--- a/routing/osrm2feature_map.cpp
+++ b/routing/osrm2feature_map.cpp
@@ -153,6 +153,8 @@ void OsrmFtSegMapping::Load(FilesMappingContainer & cont, platform::LocalCountry
   {
     ReaderSource<FileReader> src(cont.GetReader(ROUTING_NODEIND_TO_FTSEGIND_FILE_TAG));
     uint32_t const count = ReadVarUint<uint32_t>(src);
+    if (count == 0)
+      return;
     m_offsets.resize(count);
     for (uint32_t i = 0; i < count; ++i)
     {