将unicode转换为char [英] convert unicode to char

问题描述

如何在 char * 或 char * const http://www.embarcadero.com/rel =nofollow> embarcadero c ++？

How can I convert a Unicode string to a char* or char* const in embarcadero c++ ?

推荐答案

Unicode字符串真的不够具体到足以知道你的源数据是什么，但你可能意味着'UTF-16字符串存储为wchar_t数组'，因为这是大多数人不知道正确的术语使用。

"Unicode string" really isn't specific enough to know what your source data is, but you probably mean 'UTF-16 string stored as wchar_t array' since that's what most people who don't know the correct terminology use.

char *也不足以知道你想要定位什么，虽然也许embarcadero有一些约定。

"char*" also isn't enough to know what you want to target, although maybe "embarcadero" has some convention. I'll just assume you want UTF-8 data unless you mention otherwise.

此外，我将我的示例限制为VS2010中的工作

Also I'll limit my example to what works in VS2010

// your "Unicode" string
wchar_t const * utf16_string = L"Hello, World!";

// #include <codecvt>
std::wstring_convert<std::codecvt_utf8_utf16<wchar_t>,wchar_t> convert;

std::string utf8_string = convert.to_bytes(utf16_string);

这假定wchar_t字符串是UTF-16，如Windows上的情况，代码。

This assumes that wchar_t strings are UTF-16, as is the case on Windows, but otherwise is portable code.

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