From 8fb631417b82646bff30002c8d52fe4096126811 Mon Sep 17 00:00:00 2001
From: Daniel Patterson <daniel@mapbox.com>
Date: Thu, 14 Apr 2016 13:07:23 -0700
Subject: [PATCH] Abort processing if there are no snappable edges remaining.

---
 src/extractor/extractor.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/extractor/extractor.cpp b/src/extractor/extractor.cpp
index 99f25aede..1b12b8575 100644
--- a/src/extractor/extractor.cpp
+++ b/src/extractor/extractor.cpp
@@ -555,6 +555,10 @@ void Extractor::BuildRTree(std::vector<EdgeBasedNode> node_based_edge_list,
         in_iter++;
     }
     auto new_size = out_iter - node_based_edge_list.begin();
+    if (new_size == 0)
+    {
+        throw util::exception("There are no snappable edges left after processing.  Are you setting travel modes correctly in the profile?  Cannot continue.");
+    }
     node_based_edge_list.resize(new_size);
 
     TIMER_START(construction);