From 9953cb5cdef82f0e44f07dd089fde77ede170712 Mon Sep 17 00:00:00 2001
From: John Dong <jdong@mit.edu>
Date: Wed, 15 Aug 2007 19:53:05 +0000
Subject: [PATCH 1/1] Add similar hackish "fix" for IRVL deadlocking on empty
 vote

git-svn-id: svn://rubyforge.org/var/svn/rubyvote/trunk@35 1440c7f4-e209-0410-9a04-881b5eb134a8
---
 lib/rubyvote/irv.rb | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/lib/rubyvote/irv.rb b/lib/rubyvote/irv.rb
index 3851738..b26b1d1 100644
--- a/lib/rubyvote/irv.rb
+++ b/lib/rubyvote/irv.rb
@@ -87,6 +87,11 @@ class InstantRunoffResult < ElectionResult
       apply_retention(votes, votes_sum * params['percent_retention'])
     end
     
+    unless votes.length > 0
+      @winners=[nil]
+      return
+    end
+
     begin
       ranked_candidates = votes.sort do |a, b|
         b[1][0] <=> a[1][0]
-- 
2.39.5