Mercurial > vba-clojure
diff src/win32/7zip/7z/CPP/7zip/Compress/BZip2Crc.cpp @ 1:f9f4f1b99eed
importing src directory
author | Robert McIntyre <rlm@mit.edu> |
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date | Sat, 03 Mar 2012 10:31:27 -0600 |
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1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000 1.2 +++ b/src/win32/7zip/7z/CPP/7zip/Compress/BZip2Crc.cpp Sat Mar 03 10:31:27 2012 -0600 1.3 @@ -0,0 +1,26 @@ 1.4 +// BZip2Crc.cpp 1.5 + 1.6 +#include "StdAfx.h" 1.7 + 1.8 +#include "BZip2Crc.h" 1.9 + 1.10 +UInt32 CBZip2Crc::Table[256]; 1.11 + 1.12 +static const UInt32 kBZip2CrcPoly = 0x04c11db7; /* AUTODIN II, Ethernet, & FDDI */ 1.13 + 1.14 +void CBZip2Crc::InitTable() 1.15 +{ 1.16 + for (UInt32 i = 0; i < 256; i++) 1.17 + { 1.18 + UInt32 r = (i << 24); 1.19 + for (int j = 8; j > 0; j--) 1.20 + r = (r & 0x80000000) ? ((r << 1) ^ kBZip2CrcPoly) : (r << 1); 1.21 + Table[i] = r; 1.22 + } 1.23 +} 1.24 + 1.25 +class CBZip2CrcTableInit 1.26 +{ 1.27 +public: 1.28 + CBZip2CrcTableInit() { CBZip2Crc::InitTable(); } 1.29 +} g_BZip2CrcTableInit;