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updated documentation on validateSequence

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This commit is contained in:
Yann Collet
2024-12-20 10:36:59 -08:00
parent 1f6d6815c3
commit d2d0fdac42
2 changed files with 15 additions and 15 deletions
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lib/compress/zstd_compress.c
+3 -3
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@@ -6585,11 +6585,11 @@ size_t ZSTD_compress2(ZSTD_CCtx* cctx,
}
/* ZSTD_validateSequence() :
* @offCode : is presumed to follow format required by ZSTD_storeSeq()
* @offBase : must use the format required by ZSTD_storeSeq()
* @returns a ZSTD error code if sequence is not valid
*/
static size_t
ZSTD_validateSequence(U32 offCode, U32 matchLength, U32 minMatch,
ZSTD_validateSequence(U32 offBase, U32 matchLength, U32 minMatch,
size_t posInSrc, U32 windowLog, size_t dictSize, int useSequenceProducer)
{
U32 const windowSize = 1u << windowLog;
@@ -6600,7 +6600,7 @@ ZSTD_validateSequence(U32 offCode, U32 matchLength, U32 minMatch,
*/
size_t const offsetBound = posInSrc > windowSize ? (size_t)windowSize : posInSrc + (size_t)dictSize;
size_t const matchLenLowerBound = (minMatch == 3 || useSequenceProducer) ? 3 : 4;
RETURN_ERROR_IF(offCode > OFFSET_TO_OFFBASE(offsetBound), externalSequences_invalid, "Offset too large!");
RETURN_ERROR_IF(offBase > OFFSET_TO_OFFBASE(offsetBound), externalSequences_invalid, "Offset too large!");
/* Validate maxNbSeq is large enough for the given matchLength and minMatch */
RETURN_ERROR_IF(matchLength < matchLenLowerBound, externalSequences_invalid, "Matchlength too small for the minMatch");
return 0;