From 5cd12c3df265b3197bc3977ff9e5883a980d5370 Mon Sep 17 00:00:00 2001
From: James Zern <jzern@google.com>
Date: Wed, 9 May 2012 12:16:34 -0700
Subject: [PATCH] fixed signed/unsigned comparison warning

present in an assert in backward_references.h

Change-Id: Id9a528896689e51d784ad64fdc1ca052e97fe7a2
---
 src/enc/backward_references.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/enc/backward_references.h b/src/enc/backward_references.h
index 0018e58c..ce33c240 100644
--- a/src/enc/backward_references.h
+++ b/src/enc/backward_references.h
@@ -160,7 +160,7 @@ static WEBP_INLINE uint32_t PixOrCopyArgb(const PixOrCopy* const p) {
 
 static WEBP_INLINE uint32_t PixOrCopyCacheIdx(const PixOrCopy* const p) {
   assert(p->mode == kCacheIdx);
-  assert(p->argb_or_distance < (1 << kColorCacheBitsMax));
+  assert(p->argb_or_distance < (1U << kColorCacheBitsMax));
   return p->argb_or_distance;
 }