[icu-design] ICU4C API proposal: Collator.compare(UCharIterator/UTF-8)

[Markus S. <mar...@gm...>]

I propose adding the following two functions to the C++ Collator class.
The first one is missing compared with the C API:

    virtual EComparisonResult compare(
        UCharIterator &sIter,
        UCharIterator &tIter,
        UErrorCode &status) const;

The second one is a convenience wrapper for comparing UTF-8 strings:

    EComparisonResult compareUTF8(
        const StringPiece &source,
        const StringPiece &target,
        UErrorCode &status) const;

Please let me know as soon as possible if you disagree.

Best regards,
markus