From 79a6a26f9f70a937551a94a5dc83b2c5dafe1414 Mon Sep 17 00:00:00 2001
From: Matthias Vallentin <vallentin@icir.org>
Date: Fri, 14 Jun 2013 10:20:33 -0700
Subject: [PATCH] H3 does not check for zero length input.

---
 src/BloomFilter.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/BloomFilter.cc b/src/BloomFilter.cc
index eff7eee733..6a44defc6d 100644
--- a/src/BloomFilter.cc
+++ b/src/BloomFilter.cc
@@ -82,7 +82,7 @@ HashPolicy::Hasher::Hasher(size_t seed)
 HashPolicy::HashType
 HashPolicy::Hasher::operator()(const void* x, size_t n) const
   {
-  return h3_(x, n);
+  return n == 0 ? 0 : h3_(x, n);
   }
 
 HashPolicy::HashVector DefaultHashing::Hash(const void* x, size_t n) const