ddidderr/zstd-rs
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fixed ZSTD_reduceIndex()

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following suggestions from @terrelln.
Also added some comments to present logic behind ZSTD_preserveUnsortedMark().
This commit is contained in:
Yann Collet
2018-01-06 12:31:26 +01:00
parent 00db4dbbb3
commit a927fae2a1
3 changed files with 17 additions and 9 deletions
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lib/compress/zstd_compress.c
+1 -6
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@@ -1146,14 +1146,9 @@ static void ZSTD_reduceIndex (ZSTD_CCtx* zc, const U32 reducerValue)
ZSTD_reduceTable(zc->hashTable, hSize, reducerValue);
}
if (zc->appliedParams.cParams.strategy != ZSTD_btlazy2) {
U32 const chainSize = (U32)1 << zc->appliedParams.cParams.chainLog;
ZSTD_reduceTable(zc->chainTable, chainSize, reducerValue);
}
if (zc->appliedParams.cParams.strategy != ZSTD_fast) {
U32 const chainSize = (U32)1 << zc->appliedParams.cParams.chainLog;
if (zc->appliedParams.cParams.strategy != ZSTD_btlazy2)
if (zc->appliedParams.cParams.strategy == ZSTD_btlazy2)
ZSTD_preserveUnsortedMark(zc->chainTable, chainSize, reducerValue);
ZSTD_reduceTable(zc->chainTable, chainSize, reducerValue);
}