将Unicode转换为C ++中的UTF-8 [英] Unicode to UTF-8 in C++

问题描述

我搜索了很多，但找不到任何东西:

I searched a lot, but couldn't find anything:

unsigned int unicodeChar = 0x5e9;
unsigned int utf8Char;
uni2utf8(unicodeChar, utf8Char);
assert(utf8Char == 0xd7a9);

是否存在一个实现与 uni2utf8 类似的东西的库(最好是boost)?

Is there a library (preferably boost) that implements something similar to uni2utf8?

推荐答案

Boost.Locale还具有编码转换的功能:

Boost.Locale has also functions for encoding conversions:

#include <boost/locale.hpp>

int main() {
  unsigned int point = 0x5e9;
  std::string utf8 = boost::locale::conv::utf_to_utf<char>(&point, &point + 1);
  assert(utf8.length() == 2);
  assert(utf8[0] == '\xD7');
  assert(utf8[1] == '\xA9');
}

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