要在C++中实现GBK、KSC5601和JIS0208到Unicode的转换，可以利用Unicode转换库，如iconv库，或者手动编写转换表。以下是使用iconv库的示例代码：
首先，确保在你的系统上安装了iconv库。
GBK to Unicode
#include <iostream>
#include <iconv.h>
#include <cstring>void convertGBKToUnicode(const char* input, char* output, size_t outputSize) {iconv_t cd = iconv_open("UTF-8", "GBK");if (cd == (iconv_t)-1) {std::cerr << "iconv_open failed" << std::endl;return;}size_t inBytesLeft = strlen(input);size_t outBytesLeft = outputSize;char* inBuf = const_cast<char*>(input);char* outBuf = output;if (iconv(cd, &inBuf, &inBytesLeft, &outBuf, &outBytesLeft) == (size_t)-1) {std::cerr << "iconv conversion failed" << std::endl;}iconv_close(cd);
}int main() {const char* gbkStr = "GBK字符串"; // GBK encoded stringchar unicodeStr[256] = {0};convertGBKToUnicode(gbkStr, unicodeStr, sizeof(unicodeStr));std::cout << "Unicode: " << unicodeStr << std::endl;return 0;
}
KSC5601 to Unicode
#include <iostream>
#include <iconv.h>
#include <cstring>void convertKSC5601ToUnicode(const char* input, char* output, size_t outputSize) {iconv_t cd = iconv_open("UTF-8", "CP949");if (cd == (iconv_t)-1) {std::cerr << "iconv_open failed" << std::endl;return;}size_t inBytesLeft = strlen(input);size_t outBytesLeft = outputSize;char* inBuf = const_cast<char*>(input);char* outBuf = output;if (iconv(cd, &inBuf, &inBytesLeft, &outBuf, &outBytesLeft) == (size_t)-1) {std::cerr << "iconv conversion failed" << std::endl;}iconv_close(cd);
}int main() {const char* ksc5601Str = "KSC5601 문자열"; // KSC5601 encoded stringchar unicodeStr[256] = {0};convertKSC5601ToUnicode(ksc5601Str, unicodeStr, sizeof(unicodeStr));std::cout << "Unicode: " << unicodeStr << std::endl;return 0;
}
JIS0208 to Unicode
#include <iostream>
#include <iconv.h>
#include <cstring>void convertJIS0208ToUnicode(const char* input, char* output, size_t outputSize) {iconv_t cd = iconv_open("UTF-8", "EUC-JP");if (cd == (iconv_t)-1) {std::cerr << "iconv_open failed" << std::endl;return;}size_t inBytesLeft = strlen(input);size_t outBytesLeft = outputSize;char* inBuf = const_cast<char*>(input);char* outBuf = output;if (iconv(cd, &inBuf, &inBytesLeft, &outBuf, &outBytesLeft) == (size_t)-1) {std::cerr << "iconv conversion failed" << std::endl;}iconv_close(cd);
}int main() {const char* jis0208Str = "JIS0208文字列"; // JIS0208 encoded stringchar unicodeStr[256] = {0};convertJIS0208ToUnicode(jis0208Str, unicodeStr, sizeof(unicodeStr));std::cout << "Unicode: " << unicodeStr << std::endl;return 0;
}
这些函数利用iconv库进行字符编码转换，分别将GBK、KSC5601和JIS0208编码的字符串转换为Unicode（UTF-8）编码。你需要链接iconv库才能编译这些代码，例如在编译时使用-liconv选项：
g++ -o convert main.cpp -liconv
