How Can I Efficiently Convert Between UTF8 and Wide Characters in C Across Different Platforms?

Cross-Platform Conversion Between UTF8 and Wide Characters in STL

When working with different operating systems, handling text data can present challenges due to varying character representations. For instance, converting a UTF8-encoded string in a standard string object to its wide character counterpart in a wide string object can vary across platforms.

In the past, developers had to rely on platform-specific functions like MultiByteToWideChar and WideCharToMultiByte in Windows, limiting cross-platform compatibility. Thankfully, the advent of the C Standard Library (STL) provides more versatile solutions.

One approach utilizes the boost::locale library, as suggested in a previous thread, but since its incorporation into the standard as C 11, a more modern and conveniently accessible option exists:

STL-based Conversion

The following code exemplifies the conversion process:

UTF-8 to UTF-16

std::string source;
...
std::wstring_convert<std::codecvt_utf8_utf16<char16_t>, char16_t> convert;
std::u16string dest = convert.from_bytes(source);

UTF-16 to UTF-8

std::u16string source;
...
std::wstring_convert<std::codecvt_utf8_utf16<char16_t>, char16_t> convert;
std::string dest = convert.to_bytes(source);

This approach offers platform independence and ease of use, making it an effective solution for cross-platform conversion between UTF8 and wide characters.

The above is the detailed content of How Can I Efficiently Convert Between UTF8 and Wide Characters in C Across Different Platforms?. For more information, please follow other related articles on the PHP Chinese website!