[issue10542] Py_UNICODE_NEXT and other macros for surrogates

[Alexander Belopolsky]

Alexander Belopolsky <belopolsky at users.sourceforge.net> added the comment:

On Fri, Nov 26, 2010 at 7:45 PM, Eric Smith <report at bugs.python.org> wrote:
..
> For my use I'd really need it to take the result of Py_UNICODE_NEXT. Something like:
> Py_ssize_t
> Py_UNICODE_NUM_NEEDED(Py_UCS4 c)
> and it would always return 1 or 2. Always 1 for a wide build, and for a narrow
> build 1 if c is in the BMP else 2. Choose a better name, of course.

Can you describe your use case in more detail?  Would
Py_UNICODE_PUT_NEXT() combined with
Py_UNICODE_CODEPOINT_COUNT(Py_UNICODE *begin, Py_UNICODE *end) solve it?

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