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QuickHash Library |
C++ Interface |
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CCRC32::Final
void Final( unsigned char* pDest );
Parameters
pDest
[out] Pointer to the memory
buffer that will receive the checksum.
Remarks
Call this member function to retrieve the checksum from the CCRC32
object. The checksum is retrieved in the memory buffer
pointed by pDest. The size of the memory buffer pointed by pDest
must be at least CCRC32::DIGESTSIZE bytes.
After the Final method is performed, the CCRC32
object is initialized for new calculations, as it would be constructed
again.
Example
#include <fstream>
#include <QuickHash.h>
using namespace std;
using namespace QuickHash;
const unsigned int BUFF_SIZE = 1024;
int main()
{
fstream file( "c:\\test.txt", ios::in | ios::binary );
if( !file )
return 1;
unsigned char buff[ BUFF_SIZE ];
unsigned char checksum[ CCRC32::DIGESTSIZE ];
//Instantiate a CCRC32 object
CCRC32 hash;
//Calculate the checksum by calling Update for each block of the file
while( !file.eof() )
{
file.read( ( char* )buff, BUFF_SIZE );
hash.Update( buff, file.gcount() );
}
//Do final changes and get the checksum
hash.Final( checksum );
//Use the checksum
//...
file.close();
return 0;
}
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CCRC32 Overview
| Class Members
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Useful Links | HashCalc
See Also CCRC32::FinalHex, CCRC32::Update
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