c语言实现gbk文件转utf8打开,c中实现utf8和gbk的互转

#include

#include

#include

#include

#include

#include

#include

int code_convert(char *from_charset, char *to_charset, char *inbuf, size_t inlen,

char *outbuf, size_t outlen) {

iconv_t cd;

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);

*pout = '\0';

return 0;

}

int u2g(char *inbuf, size_t inlen, char *outbuf, size_t outlen) {

return code_convert("utf-8", "gb2312", inbuf, inlen, outbuf, outlen);

}

int g2u(char *inbuf, size_t inlen, char *outbuf, size_t outlen) {