windows 什么是 Linux 等价物：MultiByteToWideChar & WideCharToMultiByte？
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What is the Linux equivalent of: MultiByteToWideChar & WideCharToMultiByte?
提问by NSA
I am working with a class that wraps the std::wstring, this code needs to be cross platform, are there equivalents to the windows functions: MultiByteToWideChar & WideCharToMultiByte on linux?
我正在使用一个包装 std::wstring 的类，此代码需要跨平台，是否有与 windows 函数等效的函数：Linux 上的 MultiByteToWideChar & WideCharToMultiByte？
Thank you.
谢谢你。
回答by Philipp
The Linux equivalents are the iconvfunctions iconv_open, iconvand iconv_close(say man 3 iconv_openetc. for the documentation). For cross-platform applications, use dedicated libraries such as ICUinstead. Such libraries already contain their own string classes; there is no need to wrap std::wstring.
Linux 的等价物是iconv函数iconv_open, iconvand iconv_close（例如man 3 iconv_open文档中的等）。对于跨平台应用程序，请改用ICU等专用库。这些库已经包含它们自己的字符串类；没有必要包装std::wstring。
回答by caf
mbtowcand wctombare the most direct equivalents, but note that they operate on the multibyte character set corresponding to the current LC_CTYPElocale (which can be changed with setlocale()).
mbtowc和wctomb是最直接的等价物，但请注意，它们对与当前LC_CTYPE语言环境相对应的多字节字符集进行操作（可以用 更改setlocale()）。
