我首次使用CRC(boost::crc_32_type
),並且我注意到使用相同的參數調用process_bytes()
方法兩次得到不同的結果。這是正常的嗎?Boost CRC問題:使用相同參數的不同結果
#include <boost/crc.hpp>
#include <ios> // for std::ios_base, etc.
#include <iostream>
#include <string>
using namespace std;
int main()
{
string data1, data2;
boost::crc_32_type result1, result2;
data1 = "This is a test string";
data2 = data1;
result1.process_bytes(data1.c_str(), data1.length());
cout << "result1: " << hex << uppercase << result1.checksum() << endl;
result1.process_bytes(data1.c_str(), data1.length());
cout << "result1: " << hex << uppercase << result1.checksum() << endl;
result2.process_bytes(data1.c_str(), data1.length());
cout << "result2: " << hex << uppercase << result2.checksum() << endl;
return 0;
}
這是輸出:
result1: 2DB69898
result1: E29C91
result2: 2DB69898