On Fri, 21 May 1999, Nick Hibma wrote:

>  > > #define PRIORITY_FAIL            -1
>  > > 
>  > > It sounds like we can loads of haggling about the names there... The
>  > > last one is to take out the dependency on errno being greater than
>  > > zero.
>  > 
>  > I would actually quite like to keep the possibility of returning an errno.
>  > It gives the possibility of returning an appropriate error if something
>  > strange happened (other than the hardware not being present).
> 
> 
> How do you guarantuee that the errno is positive? Add an assert
> somewhere, like checking whether ENXIO >= PRIORITY_FAIL?

They just are positive and have always been positive :-)

Changing that (making errnos negative) would break so much code I don't
even want to think about it.

--
Doug Rabson                             Mail:  d...@nlsystems.com
Nonlinear Systems Ltd.                  Phone: +44 181 442 9037




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