不推荐使用的标头 <codecvt>替代品 [英] Deprecated header <codecvt> replacement

问题描述

有点前景:我的任务需要将 UTF-8 XML 文件转换为 UTF-16(当然还有适当的标头).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 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，我想知道什么是新的常用方法同样的任务?

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，我更喜欢尽可能接近标准库.)

(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 模板来自 本身并没有被弃用.对于 UTF-8 到 UTF-16，仍然有 std::codecvt 特化.

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 std::wstring_convert 和 std::wbuffer_convert 与标准转换方面一起被弃用，因此没有任何简单的方法可以使用方面.

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:自己实现它(或者您可以像往常一样使用第三方库)或继续使用已弃用的 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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