From a164ef53f2c38f331d2b4df8d7ff98693c4584a1 Mon Sep 17 00:00:00 2001
From: Michihiro NAKAJIMA <ggcueroad@gmail.com>
Date: Mon, 3 Dec 2012 12:51:29 +0900
Subject: [PATCH] Avoid arithmetic overflow warning(C6297) found by Visual
 studio static analysis.

---
 libarchive/archive_ppmd7.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libarchive/archive_ppmd7.c b/libarchive/archive_ppmd7.c
index 13a258188..fe0b0318c 100644
--- a/libarchive/archive_ppmd7.c
+++ b/libarchive/archive_ppmd7.c
@@ -990,7 +990,7 @@ static void RangeEnc_ShiftLow(CPpmd7z_RangeEnc *p)
     p->Cache = (Byte)((UInt32)p->Low >> 24);
   }
   p->CacheSize++;
-  p->Low = (UInt32)p->Low << 8;
+  p->Low = ((UInt32)p->Low << 8) & 0xFFFFFFFF;
 }
 
 static void RangeEnc_Encode(CPpmd7z_RangeEnc *p, UInt32 start, UInt32 size, UInt32 total)
-- 
2.47.2