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Implemented repOffset "minus 1" on ll==0

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This commit is contained in:
Yann Collet
2016-07-31 04:01:57 +02:00
parent 8f29e8e0e4
commit 917fe188f1
3 changed files with 26 additions and 25 deletions
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lib/decompress/zstd_decompress.c
+2 -2
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@@ -627,9 +627,9 @@ static seq_t ZSTD_decodeSequence(seqState_t* seqState)
}
if (ofCode <= 1) {
if ((llCode == 0) & (offset <= 1)) offset = 1-offset;
offset += (llCode==0);
if (offset) {
size_t const temp = seqState->prevOffset[offset];
size_t const temp = (offset==3) ? seqState->prevOffset[0] - 1 : seqState->prevOffset[offset];
if (offset != 1) seqState->prevOffset[2] = seqState->prevOffset[1];
seqState->prevOffset[1] = seqState->prevOffset[0];
seqState->prevOffset[0] = offset = temp;