From fb6586ecdf2dff1e8333e0216b14a69835f6e0f2 Mon Sep 17 00:00:00 2001
From: William S Fulton <wsf@fultondesigns.co.uk>
Date: Thu, 25 Oct 2007 23:52:35 +0000
Subject: [PATCH] Fix unary minus warning

git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk@10045 626c5289-ae23-0410-ae9c-e8d60b6d4f22
---
 Lib/ruby/rubyiterators.swg | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/Lib/ruby/rubyiterators.swg b/Lib/ruby/rubyiterators.swg
index b2482a61d..96ca1e62b 100644
--- a/Lib/ruby/rubyiterators.swg
+++ b/Lib/ruby/rubyiterators.swg
@@ -72,7 +72,8 @@ namespace swig {
 
     virtual self_type* previous( size_t n = 1 )
     {
-      return this->advance( -n );
+      ptrdiff_t nn = n;
+      return this->advance( -nn );
     }
 
     virtual VALUE to_s() const {
@@ -228,7 +229,8 @@ namespace swig {
 
     virtual self_type* previous( size_t n = 1 )
     {
-      return this->advance( -n );
+      ptrdiff_t nn = n;
+      return this->advance( -nn );
     }
 
     bool operator == (const ConstIterator& x)  const