Question

I want to generate crc code of a string in my c++ code using boost::crc_32_type then later regenerate it in java using (java.util.zip.CRC32) but the result is not the same. Anyone can help?

Answer 1

So. Results are equal.

import java.util.*;
import java.lang.*;

class Main
{
        public static void main (String[] args) throws java.lang.Exception
        {
                String s = new String("123456789");
                java.util.zip.CRC32 crc32 = new java.util.zip.CRC32();
                crc32.update(s.getBytes());
                System.out.println(crc32.getValue());
        }
}

3421780262

http://ideone.com/Q1GTB

#include <boost/crc.hpp>
#include <string>
#include <iostream>
#include <algorithm>

int main()
{
   const std::string str = "123456789";
   boost::crc_32_type crc32;
   crc32 = std::for_each(str.begin(), str.end(), crc32);
   std::cout << crc32() << std::endl;
}

3421780262

http://liveworkspace.org/code/0a5c4f1eaa920bd0161f7d37fa809aa3