isascii(3) macros and casts

[Alejandro Colomar]

On Wed, Dec 11, 2024 at 01:42:15PM -0800, Paul Eggert wrote:
> On 2024-12-11 12:53, Alejandro Colomar wrote:
> > On the other hand, calling isdigit() with anything that's not a valid
> > char or EOF (-1) is already UB (and IMO, should stay as UB), so the
> > first approach should be enough, no?
> 
> True, though it saves no instructions to make the behavior defined.

It saves readability, which is scarcer than instructions.  :-)


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