Linux下的iconv函数

   #ifndef CODECONVERTER_H

#define CODECONVERTER_H



#include <iconv.h>

#include <iostream>



class CodeConverter

{

public:

    CodeConverter(const char *from,const char *to) {

        id = iconv_open(to,from);

    }

    ~CodeConverter() {

        iconv_close(id);

    }



    int converter(char *input,size_t &inlen,char *output,size_t &outlen) {

        char **in = &input;

        char **out = &output;

        return iconv(id,in,&inlen,out,&outlen);

    }







private:

    iconv_t id;



};



#endif // CODECONVERTER_H





#include <iostream>

#include "CodeConverter.h"

#include <cstring>



using namespace std;



int main()

{

  char *msg = "你好";



    char out[20] = {'\0'};

    size_t outl = sizeof(out);

    size_t inl = strlen(msg);

    CodeConverter converter("utf-8","unicode");

    int r = converter.converter(msg,inl,out,outl);

    if ( r != -1) {

        // cout <<"len:"<< inl <<"   "<<outl <<"unicode:"<< out << endl;

        for (int j = 0;j < 20 - (int)outl;++j) {

            cout << j << " : " << hex <<((unsigned short int)out[j] & 0x00ff)<< '\n';

        }



    }