From 1afcbfb7de6fef5c052766f258bde74d845253df Mon Sep 17 00:00:00 2001
From: giraffedata <giraffedata@9d0c8265-081b-0410-96cb-a4ca84ce46f8>
Date: Wed, 28 Feb 2007 03:47:25 +0000
Subject: Fix unsigned arithmetic bug

git-svn-id: http://svn.code.sf.net/p/netpbm/code/trunk@238 9d0c8265-081b-0410-96cb-a4ca84ce46f8
---
 lib/libpbm3.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

(limited to 'lib/libpbm3.c')

diff --git a/lib/libpbm3.c b/lib/libpbm3.c
index a3ada015..2a811748 100644
--- a/lib/libpbm3.c
+++ b/lib/libpbm3.c
@@ -107,11 +107,12 @@ packBitsWithMmxSse(FILE *          const fileP,
 
     typedef int v8qi __attribute__ ((mode(V8QI)));
     typedef int di __attribute__ ((mode(DI)));
-    int col;
 
     di const zero64 = 0;        /* to clear with PXOR */
 
-    for (col = 0; col < cols-7; col += 8) {
+    unsigned int col;
+
+    for (col = 0; col + 7 < cols; col += 8) {
         v8qi const compare =
             __builtin_ia32_pcmpeqb(*(v8qi*) (&bitrow[col]), *(v8qi*) &zero64);
         unsigned char const backwardWhiteMask = (unsigned char)
-- 
cgit 1.4.1