isascii(3) macros and casts

[Alejandro Colomar]

Hi Andreas,

On Wed, Dec 11, 2024 at 04:40:34PM +0100, Andreas Schwab wrote:
> That depends on the locale's charset.

Hmmm; true.  How about this?

#define my_isdigit(c)                                                 \
(                                                                     \
	isdigit(_Generic(c, char: (unsigned char) c, default: c))     \
)

Cheers,
Alex

-- 
<https://www.alejandro-colomar.es/>
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