a

2026-07-03 16:05:30 +08:00
commit df489d5640
1101 changed files with 779140 additions and 0 deletions
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+// Crc16.h: interface for the Crc16 class.
+//
+//////////////////////////////////////////////////////////////////////
+
+#if !defined(AFX_CRC16_H__8BE9FD91_A066_4984_AEBA_EA04F8836263__INCLUDED_)
+#define AFX_CRC16_H__8BE9FD91_A066_4984_AEBA_EA04F8836263__INCLUDED_
+
+#if _MSC_VER > 1000
+#pragma once
+#endif // _MSC_VER > 1000
+
+class Crc16  
+{
+private :
+	static unsigned short table[ 256 ];
+	static int initialized;
+	unsigned short crc;
+public :
+	Crc16( unsigned short init_value );
+	void update( int c );
+    unsigned short value( void ){ return crc; }
+
+// public:
+// 	Crc16();
+// 	virtual ~Crc16();
+
+};
+
+inline void Crc16::update( int c )
+{
+    crc = (unsigned short)
+		( table[ (( crc >> 8 ) & 0xff ) ] ^
+		( crc << 8 ) ^ ( c & 0xff ) );
+}
+
+#endif // !defined(AFX_CRC16_H__8BE9FD91_A066_4984_AEBA_EA04F8836263__INCLUDED_)