Hi Jakub,

On Thu, Nov 30, 2023 at 11:13:01PM +0100, Jakub Wilk wrote:
> * Alejandro Colomar <alx@kernel.org>, 2023-11-30 13:40:
> > Since POSIX doesn't specify, I assume it allows setting errno on
> > success, as with any other libc function.  That includes setting errno
> > on a successful call that returns 0.
> 
> No? "These functions shall not change the setting of errno if successful."

Ahhh, I missed that text.  Thanks!  It means that a simple errno!=0 is
enough (plus the endptr check), then, and the current page is correct.

Cheers,
Alex

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