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How Can I Efficiently Convert UTF-8 to UTF-16 in C Without Using Deprecated Functions?

Susan Sarandon

Dec 04, 2024 pm 02:03 PM

How Can I Efficiently Convert UTF-8 to UTF-16 in C Without Using Deprecated Functions?

Modern UTF-8 to UTF-16 Conversion

The deprecated header, once a go-to solution for UTF-8 to UTF-16 conversion, poses a challenge for developers seeking alternative methods.

Proposed Solution:

Contrary to popular belief, the std::codecvt template from remains functional. For UTF-8 to UTF-16 conversions, consider employing the std::codecvt specialization.

Deprecation of Conversion Facets and Workarounds:

Regrettably, the once-convenient std::wstring_convert and std::wbuffer_convert are now obsolete, along with standard conversion facets. This has made direct string conversion using facets unfeasible.

Thus, developers face two options:

Implement Custom Conversion: Roll up your sleeves and write your own conversion implementation.
Continue Using Deprecated API: Utilize the deprecated API, acknowledging its eventual sunsetting.

For those seeking a standard library-adjacent solution, consider exploring Boost's conversion facilities. However, the path of least resistance may ultimately lie in implementing your own solution or using a reliable third-party library.

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