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Fix compiler narrowing warning

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This commit is contained in:
Nick Terrell 2016-10-24 14:11:27 -07:00
parent f698ad6deb
commit b2c39a22b0
1 changed files with 6 additions and 3 deletions
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9
lib/compress/zstd_compress.c
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@ -2523,9 +2523,12 @@ static size_t ZSTD_loadDictEntropyStats(ZSTD_CCtx* cctx, const void* dict, size_
cctx->rep[2] = MEM_readLE32(dictPtr+8); if (cctx->rep[2] >= dictSize) return ERROR(dictionary_corrupted); cctx->rep[2] = MEM_readLE32(dictPtr+8); if (cctx->rep[2] >= dictSize) return ERROR(dictionary_corrupted);
dictPtr += 12; dictPtr += 12;
{ size_t const maxOffset = (dictEnd - dictPtr) + 128 KB; /* The maximum offset that must be supported */ { U32 offcodeMax = MaxOff;
/* Calculate minimum offset code required to represent maxOffset */ if ((size_t)(dictEnd - dictPtr) <= ((U32)-1) - 128 KB) {
unsigned const offcodeMax = ZSTD_highbit32(maxOffset); U32 const maxOffset = (U32)(dictEnd - dictPtr) + 128 KB; /* The maximum offset that must be supported */
/* Calculate minimum offset code required to represent maxOffset */
offcodeMax = ZSTD_highbit32(maxOffset);
}
/* Every possible supported offset <= dictContentSize + 128 KB must be representable */ /* Every possible supported offset <= dictContentSize + 128 KB must be representable */
CHECK_F (ZSTD_checkDictNCount(offcodeNCount, offcodeMaxValue, MIN(offcodeMax, MaxOff))); CHECK_F (ZSTD_checkDictNCount(offcodeNCount, offcodeMaxValue, MIN(offcodeMax, MaxOff)));
} }