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15.07

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This commit is contained in:
Igor Pavlov
2015-09-22 00:00:00 +00:00
committed by Kornel Lesiński
parent cba375916f
commit f6444c3256
96 changed files with 7301 additions and 2409 deletions
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11
CPP/7zip/Archive/Cab/CabBlockInStream.cpp
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@@ -29,15 +29,24 @@ CCabBlockInStream::~CCabBlockInStream()
static UInt32 CheckSum(const Byte *p, UInt32 size)
{
UInt32 sum = 0;
for (UInt32 i = size >> 2; i != 0; i--)
for (; size >= 8; size -= 8)
{
sum ^= GetUi32(p) ^ GetUi32(p + 4);
p += 8;
}
if (size >= 4)
{
sum ^= GetUi32(p);
p += 4;
}
size &= 3;
if (size > 2) sum ^= (UInt32)(*p++) << 16;
if (size > 1) sum ^= (UInt32)(*p++) << 8;
if (size > 0) sum ^= (UInt32)(*p++);
return sum;
}