1 files changed, 26 insertions, 0 deletions
diff --git a/src/libs/7zip/unix/C/XzCrc64.h b/src/libs/7zip/unix/C/XzCrc64.h
new file mode 100644
index 000000000..0e8efd7ea
--- /dev/null
+++ b/src/libs/7zip/unix/C/XzCrc64.h
@@ -0,0 +1,26 @@
+/* XzCrc64.h -- CRC64 calculation
+2010-04-16 : Igor Pavlov : Public domain */
+
+#ifndef __XZ_CRC64_H
+#define __XZ_CRC64_H
+
+#include <stddef.h>
+
+#include "Types.h"
+
+EXTERN_C_BEGIN
+
+extern UInt64 g_Crc64Table[];
+
+void MY_FAST_CALL Crc64GenerateTable(void);
+
+#define CRC64_INIT_VAL UINT64_CONST(0xFFFFFFFFFFFFFFFF)
+#define CRC64_GET_DIGEST(crc) ((crc) ^ CRC64_INIT_VAL)
+#define CRC64_UPDATE_BYTE(crc, b) (g_Crc64Table[((crc) ^ (b)) & 0xFF] ^ ((crc) >> 8))
+
+UInt64 MY_FAST_CALL Crc64Update(UInt64 crc, const void *data, size_t size);
+UInt64 MY_FAST_CALL Crc64Calc(const void *data, size_t size);
+
+EXTERN_C_END
+
+#endif