不建议使用的标头< codecvt>替换 [英] Deprecated header <codecvt> replacement

问题描述

一些前景:我的任务需要将UTF-8 XML文件转换为UTF-16(当然具有正确的标头).因此，我搜索了将UTF-8转换为UTF-16的常用方法，发现应该使用<codecvt>中的模板.

A bit of foreground: my task required converting UTF-8 XML file to UTF-16 (with proper header, of course). And so I searched about usual ways of converting UTF-8 to UTF-16, and found out that one should use templates from <codecvt>.

但是现在，当它已弃用时，我不知道新的常见处理方法是什么相同的任务?

But now when it is deprecated, I wonder what is the new common way of doing the same task?

(完全不介意使用Boost，但除此之外，我更喜欢尽可能靠近标准库.)

(Don't mind using Boost at all, but other than that I prefer to stay as close to standard library as possible.)

推荐答案

std::codecvt模板.对于UTF-8到UTF-16，仍然存在std::codecvt<char16_t, char, std::mbstate_t>专业化.

std::codecvt template from <locale> itself isn't deprecated. For UTF-8 to UTF-16, there is still std::codecvt<char16_t, char, std::mbstate_t> specialization.

但是，由于不推荐使用std::wstring_convert和std::wbuffer_convert以及标准转换构面，因此，没有任何简单的方法可以使用这些构面来转换字符串.

However, since std::wstring_convert and std::wbuffer_convert are deprecated along with the standard conversion facets, there isn't any easy way to convert strings using the facets.

因此，正如Bolas已经回答的那样:您可以自己实现(或者您可以像往常一样使用第三方库)，或者继续使用不推荐使用的API.

So, as Bolas already answered: Implement it yourself (or you can use a third party library, as always) or keep using the deprecated API.

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