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author | wolfbeast <mcwerewolf@wolfbeast.com> | 2019-04-05 20:01:10 +0200 |
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committer | wolfbeast <mcwerewolf@wolfbeast.com> | 2019-04-05 20:01:10 +0200 |
commit | c3b63b831cd2c64700e875b28540212c7c881ac6 (patch) | |
tree | edd98fcbd2004d3b562904f822bf6c3322fc7f52 /other-licenses/7zstub/src/C/7zCrc.h | |
parent | d432e068a21c815d5d5e7bcbc1cc8c6e77a7d1e0 (diff) | |
parent | cc07da9cb4d6e7a53f8d953427ffc2bca2e0c2df (diff) | |
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Merge branch 'master' into 816
Diffstat (limited to 'other-licenses/7zstub/src/C/7zCrc.h')
-rw-r--r-- | other-licenses/7zstub/src/C/7zCrc.h | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/other-licenses/7zstub/src/C/7zCrc.h b/other-licenses/7zstub/src/C/7zCrc.h new file mode 100644 index 000000000..3b0459402 --- /dev/null +++ b/other-licenses/7zstub/src/C/7zCrc.h @@ -0,0 +1,25 @@ +/* 7zCrc.h -- CRC32 calculation
+2013-01-18 : Igor Pavlov : Public domain */
+
+#ifndef __7Z_CRC_H
+#define __7Z_CRC_H
+
+#include "7zTypes.h"
+
+EXTERN_C_BEGIN
+
+extern UInt32 g_CrcTable[];
+
+/* Call CrcGenerateTable one time before other CRC functions */
+void MY_FAST_CALL CrcGenerateTable(void);
+
+#define CRC_INIT_VAL 0xFFFFFFFF
+#define CRC_GET_DIGEST(crc) ((crc) ^ CRC_INIT_VAL)
+#define CRC_UPDATE_BYTE(crc, b) (g_CrcTable[((crc) ^ (b)) & 0xFF] ^ ((crc) >> 8))
+
+UInt32 MY_FAST_CALL CrcUpdate(UInt32 crc, const void *data, size_t size);
+UInt32 MY_FAST_CALL CrcCalc(const void *data, size_t size);
+
+EXTERN_C_END
+
+#endif
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