On Tue, Feb 2, 2021 at 3:47 AM Inada Naoki <songofaca...@gmail.com> wrote:

> But when wchar_t* is UTF-16, ucs2_utf8_encoder() can not handle
> surrogate escape.
> We need to use a temporary Unicode object. That is what "inefficient"
> means.
>

Since real UCS-2 is effectively dead, maybe it should be flipped around:
Make UTF-16 be the efficient path and UCS-2 be the path that needs to
round-trip through Unicode. But I suppose that's out of scope for this PEP.

-Em
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