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| author | Yann Collet <Cyan4973@users.noreply.github.com> | 2019-07-15 16:08:11 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2019-07-15 16:08:11 (GMT) |
| commit | a23541463d924f11dfc0843f4ddb10a1e777e405 (patch) | |
| tree | 7dc5c426fcad717cd467b16fab049dfb073b471a | |
| parent | f1e8e806e0dd753eb48e40272e620f747c7b723e (diff) | |
| parent | 8ac954aa71edd5c13a0b9f6ab57eaece75efc28d (diff) | |
| download | lz4-a23541463d924f11dfc0843f4ddb10a1e777e405.zip lz4-a23541463d924f11dfc0843f4ddb10a1e777e405.tar.gz lz4-a23541463d924f11dfc0843f4ddb10a1e777e405.tar.bz2 | |
Merge pull request #753 from Hitatm/fix_LZ4_DISTANCE_MAX
bugfix: correctly control the offset < LZ4_DISTANCE_MAX,when change t…
| -rw-r--r-- | lib/lz4hc.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/lz4hc.c b/lib/lz4hc.c index 936f739..46c20bc 100644 --- a/lib/lz4hc.c +++ b/lib/lz4hc.c @@ -228,7 +228,7 @@ LZ4HC_InsertAndGetWiderMatch ( const U32 dictLimit = hc4->dictLimit; const BYTE* const lowPrefixPtr = base + dictLimit; const U32 ipIndex = (U32)(ip - base); - const U32 lowestMatchIndex = (hc4->lowLimit + 64 KB > ipIndex) ? hc4->lowLimit : ipIndex - LZ4_DISTANCE_MAX; + const U32 lowestMatchIndex = (hc4->lowLimit + (LZ4_DISTANCE_MAX + 1) > ipIndex) ? hc4->lowLimit : ipIndex - LZ4_DISTANCE_MAX; const BYTE* const dictBase = hc4->dictBase; int const lookBackLength = (int)(ip-iLowLimit); int nbAttempts = maxNbAttempts; |