Fix undefined behavior in the macros SET_BH, CLEAR_BH, & ISSET_BH
These macros contain this pattern: 1 << ((Int32_value) & 31 This causes the undefined behavior sanitizers in clang and gcc to complain because the shift, while ultimately stored to an unsigned variable, is done as a signed value. Adding a cast to unsigned for the int32 value resolves this issue.
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@ -202,9 +202,9 @@ void fallbackQSort3 ( UInt32* fmap,
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bhtab [ 0 .. 2+(nblock/32) ] destroyed
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*/
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#define SET_BH(zz) bhtab[(zz) >> 5] |= (1 << ((zz) & 31))
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#define CLEAR_BH(zz) bhtab[(zz) >> 5] &= ~(1 << ((zz) & 31))
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#define ISSET_BH(zz) (bhtab[(zz) >> 5] & (1 << ((zz) & 31)))
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#define SET_BH(zz) bhtab[(zz) >> 5] |= ((UInt32)1 << ((zz) & 31))
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#define CLEAR_BH(zz) bhtab[(zz) >> 5] &= ~((UInt32)1 << ((zz) & 31))
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#define ISSET_BH(zz) (bhtab[(zz) >> 5] & ((UInt32)1 << ((zz) & 31)))
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#define WORD_BH(zz) bhtab[(zz) >> 5]
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#define UNALIGNED_BH(zz) ((zz) & 0x01f)
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