From ce34158680bca4de85499fb8addaf766bf3159cf Mon Sep 17 00:00:00 2001
From: Francisco Jerez <currojerez@riseup.net>
Date: Tue, 26 Nov 2013 22:27:52 -0800
Subject: [PATCH] clover: Fix missing minus sign in
 'iterator_adaptor::operator-='.

The method is currently unused, this probably doesn't fix anything at
this point.
---
 src/gallium/state_trackers/clover/util/adaptor.hpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/gallium/state_trackers/clover/util/adaptor.hpp b/src/gallium/state_trackers/clover/util/adaptor.hpp
index fafb01fe9e7..e9035968573 100644
--- a/src/gallium/state_trackers/clover/util/adaptor.hpp
+++ b/src/gallium/state_trackers/clover/util/adaptor.hpp
@@ -111,7 +111,7 @@ namespace clover {
 
          iterator_adaptor &
          operator-=(difference_type n) {
-            tuple::map(advances_by(n), its);
+            tuple::map(advances_by(-n), its);
             return *this;
          }