isascii(3) macros and casts

[Andreas Schwab]

On Dez 11 2024, Alejandro Colomar wrote:

> Hi Andreas,
>
> On Wed, Dec 11, 2024 at 03:03:00PM +0100, Andreas Schwab wrote:
>> On Dez 11 2024, Alejandro Colomar wrote:
>> 
>> > 	inline bool
>> > 	my_isdigit(int c)
>> > 	{
>> > 		unsigned char  uc = c;
>> >
>> > 		return isdigit(uc);
>> 
>> This is wrong for EOF.
>
> Is it?  EOF is -1, which is converted to 255, which is not a digit.

That depends on the locale's charset.

-- 
Andreas Schwab, SUSE Labs, schwab@suse.de
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