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libiconv convert utf8 to gbk fialed when text contains ellipsis(……) only in iOS17, and in Xcode 15 I update the libiconv because it's old. I have test libiconv.tbd and libicon.2.tbd the same result. Condition: only iOS 17, iOS 16- is OK; Text contains ellipsis(……) such as ……测试字符串; Convert to gbk or gb18030 is failed and return -1, but gb2312 return is OK。 int code_convert(const char *from_charset, const 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 ((int)iconv(cd, pin, &inlen, pout, &outlen) == -1) { iconv_close(cd); std::cout<< "转换失败" << std::endl; return -1; } iconv_close(cd); return 0; } int u2g(char *inbuf, size_t inlen, char *outbuf, size_t outlen) { //gb18030 , gb2312 return code_convert("utf-8", "gb2312", inbuf, inlen, outbuf, outlen); } std::string UTFtoGBK(const char* utf8) { int length = strlen(utf8); char *temp = (char*)malloc(sizeof(char)*length); if(u2g((char*)utf8,length,temp,length) >= 0) { std::string str_result; str_result.append(temp); free(temp); return str_result; }else { free(temp); return ""; } }