On Sat, Jan 31, 2026 at 01:45:58PM +0000, Robin Haberkorn via Bug reports for 
ncurses, the GNU implementation of curses wrote:
> On Fri Jan 30, 2026 at 19:04:01 GMT +01, the GNU implementation of curses 
> Robin Haberkorn via Bug reports for ncurses wrote:
> > Whereas CCHARW_MAX is ncurses-specific, but 5 is probably
> > a safe value even on PDCurses.
> 
> Just that NetBSD curses appears to reserve 8 wchar_t using its own
> macro CURSES_CCHAR_MAX. Confusingly they do define CCHARW_MAX as well,
> but never actually use it...

sure.  but that's implemented several later, using ncurses as a reference,

https://invisible-island.net/ncurses/ncurses-netbsd.html#widechar

and not actually finishing the job...

(that's a known issue that it should be 6, but again it's an ABI change)

-- 
Thomas E. Dickey <[email protected]>
https://invisible-island.net

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