C++ 字符串转换成16进制和2进制

#include <iostream>
using namespace std;


static const char *tohex = "0123456789ABCDEF";
void CharToHex(unsigned char *out,const unsigned char *in,int len)
{
    int i = 0;
    while(i < len)
    {
        *out++ = tohex[in[i] >> 4];
        *out++ = tohex[in[i] & 0x0F];
        ++i;
    }
}

void bitcount(char* x,int size)
{
      for(int i=0;i<size;i++)
      {
          for(int j=0;j<sizeof(char)*8;j++)
                (*(x+i) & (0X80>> j)) ? cout << "1 " : cout << "0 ";
          if (i < size-1)cout << ", ";
      }
}

  int main(int argc, char *argv[])
  {
     int i;
     unsigned char *out;
     CharToHex(out,(const unsigned char*)"中文",4);
     cout << "Hex:" << out << endl;
     cout << "Binary:";
     bitcount((char *)"中文",4);
     cout << endl;
      return 0;
  }

程序输出：
Hex:D6D0CEC4
Binary:1 1 0 1 0 1 1 0 , 1 1 0 1 0 0 0 0 , 1 1 0 0 1 1 1 0 , 1 1 0 0 0 1 0 0