From: Yann Collet <cyan@fb.com>
Date: Fri, 11 May 2018 02:48:09 +0000 (-0700)
Subject: fixed wrong assertion
X-Git-Tag: v1.3.5~3^2~55^2~1
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=99ddca43a6252369c3ad062e906c5d4f50b74f3c;p=thirdparty%2Fzstd.git

fixed wrong assertion

base can actually overflow
---

diff --git a/lib/compress/zstd_compress.c b/lib/compress/zstd_compress.c
index 58daf5d0c..3a45d58dc 100644
--- a/lib/compress/zstd_compress.c
+++ b/lib/compress/zstd_compress.c
@@ -2003,7 +2003,6 @@ static size_t ZSTD_compressBlock_internal(ZSTD_CCtx* zc,
     {   const BYTE* const base = ms->window.base;
         const BYTE* const istart = (const BYTE*)src;
         const U32 current = (U32)(istart-base);
-        assert(istart >= base);
         if (sizeof(ptrdiff_t)==8) assert(istart - base < (ptrdiff_t)(U32)(-1));   /* ensure no overflow */
         if (current > ms->nextToUpdate + 384)
             ms->nextToUpdate = current - MIN(192, (U32)(current - ms->nextToUpdate - 384));