Unicode needs a 21-bit type minimum, does that mean 16-bit wchar_t ABIs are incompatible? Sensible systems use 32-bit wchar_t.
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Replying to @FakeUnicode @patofiero
wchar_t can't use surrogate pairs. It's explicitly forbidden. 16-bit wchar_t implies only supporting BMP.
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Replying to @RichFelker @FakeUnicode
Is it really explicitly forbidden? As opposed to logically incompatible with the meaning of wchar_t.
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I'm 99% sure I saw an explicit statement in a rationale doc somewhere but I couldn't find it after tweeting that.
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It's clearly incompatible with mbrtowc/wcrtomb API though.
8:51 AM - 24 Feb 2017
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