谁能帮我把这段Java转换成C++，或者告诉我方法

Question

>>>
Zero-fill right shift Shifts right, but always fills in with 0's.

Answer 1

String bintoascii(byte bySourceByte[])
        {
            int len1,i;
            byte tb;
            char high,tmp,low;
            String result;
            len1=len(bySourceByte);
            for(i=0;i<len1;i++)
            {
                tb=bySourceByte[i];
                
                tmp=(char)((tb>>>4)&0x000f);
                if(tmp>=10)
                    high=(char)('a'+tmp-10);
                else
                    high=(char)('0'+tmp);
                result+=high;
                tmp=(char)(tb&0x000f);
                if(tmp>=10)
                    low=(char)('a'+tmp-10);
                else
                    low=(char)('0'+tmp);
                
                result+=low;
            }
            return result;
        }

Answer 2

#include<string>
#include<iostream>
#include<stdio.h>using namespace std;string bintoascii(char bySourceByte[])
{
    int len,i;
    char tb;
    char high,tmp,low;
    len=strlen(bySourceByte);
    string result;
    
    for(i=0;i<len;i++) {
        tb=(char)bySourceByte[i];
        tmp=(char)((tb>>4)&0x000f);
        
        if(tmp>=10) {
            high=(char)('a'+tmp-10);
        } else {
            high=(char)('0'+tmp);
        }
        
        result+=high;
        tmp=(char)(tb&0x000f);
        
        if(tmp>=10) {
            low = (char)('a'+tmp-10);
        } else {
            low = (char)('0'+tmp);
        }
        
    result+=low;
}
    return result;
}int
main(int args, char *argv[])
{
    if (args < 2) {
        cout<<"Usage: md5 string"<<endl;
        exit(0);
    }
    cout<<bintoascii(argv[1])<<endl;
return 0;
}不知道行不行

Answer 3

我用java试过了那个bintoascii就是为了输出字符的ascii码啊
md5的函数代码可以看看吗？