C语言编码转换gb2312 to utf8，utf8 to gb2312 代码，GCC编译，支持Windows、Linux

标签：strincludeclustringdefnis==tddclass

编译：gcc -o f.exe f.c -liconv

#include <stdio.h>
#include <stdlib.h>
#include <stddef.h>
#include <string.h>
#include <unistd.h>
#include <iconv.h>
#define OUTLEN 255

main()
{
char *in_utf8 = \”姝ｅ?ㄥ??瑁?\”;
char *in_gb2312 = \”你是谁\”;
char out[OUTLEN];
int rc;

//unicode码转为gb2312码
rc = u2g(in_utf8,strlen(in_utf8),out,OUTLEN);
//printf(\”unicode–>gb2312 out=%sn\”,out);

//gb2312码转为unicode码
rc = g2u(in_gb2312,strlen(in_gb2312),out,OUTLEN);
printf(\”gb2312–>unicode out=%sn\”,out);

}

/*代码转换:从一种编码转为另一种编码*/
int code_convert(char *from_charset,char *to_charset,char *inbuf,int inlen,char *outbuf,int outlen)
{
iconv_t cd;
int rc;
char **pin = &inbuf;
char **pout = &outbuf;

cd = iconv_open(to_charset,from_charset);
if (cd==0) return -1;
memset(outbuf,0,outlen);
if (iconv(cd,pin,&inlen,pout,&outlen)==-1) return -1;
iconv_close(cd);
return 0;
}
/*UNICODE码转为GB2312码*/
int u2g(char *inbuf,int inlen,char *outbuf,int outlen)
{
return code_convert(\”utf-8\”,\”gb2312\”,inbuf,inlen,outbuf,outlen);
}
/*GB2312码转为UNICODE码*/
int g2u(