>would anybody be interested in a stdC++ string variant class using UTF8 >as native encoding ?
Yes, although I'd be much more interested in a string variant that could handle other multi-byte encodings too. That would be very useful, IMO.
Some applications would seem to need compile-time choice of encoding for efficiency which others would need run-time choice for flexibility. If it was demonstrated that the cost of run-time polymorphism was low (say 2-4 percent) it might be OK to just supply run-time polymorphism.
Conversions between character encodings is also of interest.
Dinkumware has a commercial library which does conversions, based on the standard's codecvt mechanism, IIUC. I mention it because it wouldn't be a huge surprise if they eventually propose their interface for standardization. Conversions between encodings are notoriously messy, and there are few people who understand all the issues.
--Beman
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