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41 lines
983 B
41 lines
983 B
#include <iconv.h>
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#include "ziconv.hpp"
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using namespace iflytop;
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string ZIconv::utf8_to_gb2312(const std::string& utf8_str) {
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// 打开转换描述符
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iconv_t cd = iconv_open("GB2312", "UTF-8");
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if (cd == (iconv_t)-1) {
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perror("iconv_open failed");
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exit(EXIT_FAILURE);
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}
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// 输入字符串
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const char* in_str = utf8_str.c_str();
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size_t in_size = utf8_str.size();
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// 输出缓冲区
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size_t out_size = in_size * 2; // 假设输出的字节数不会超过输入的两倍
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char* out_buf = new char[out_size];
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char* out_str = out_buf;
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// 进行转换
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if (iconv(cd, const_cast<char**>(&in_str), &in_size, &out_str, &out_size) == (size_t)-1) {
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perror("iconv failed");
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iconv_close(cd);
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delete[] out_buf;
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exit(EXIT_FAILURE);
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}
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// 关闭转换描述符
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iconv_close(cd);
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// 获取转换后的字符串
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std::string gb2312_str(out_buf, out_str - out_buf);
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// 释放内存
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delete[] out_buf;
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return gb2312_str;
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}
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