如何在C ++中将unicode代码点转换为utf-8? [英] How to convert unicode code points to utf-8 in c++?

问题描述

我有一个由unicode代码点组成的数组

I have an array consisting of unicode code points

unsigned short array[3]={0x20ac,0x20ab,0x20ac};

我只希望将其转换为utf-8以使用C ++逐字节写入文件.

I just want this to be converted as utf-8 to write into file byte by byte using C++.

示例: 0x20ac应转换为e2 82 ac.

Example: 0x20ac should be converted to e2 82 ac.

或者还有其他方法可以直接在文件中写入unicode字符.

or is there any other method that can directly write unicode characters in file.

推荐答案

最后！使用C ++ 11！

Finally! With C++11!

#include <string>
#include <locale>
#include <codecvt>
#include <cassert>

int main()
{
    std::wstring_convert<std::codecvt_utf8<char32_t>, char32_t> converter;
    std::string u8str = converter.to_bytes(0x20ac);
    assert(u8str == "\xe2\x82\xac");
}

这篇关于如何在C ++中将unicode代码点转换为utf-8?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！