errno.h: ESTRPIPE

[Peter Rosin]

Warren Young skrev:
> Corinna Vinschen wrote:
> > This is very Linux device specific and this never occurs on Cygwin.
> > What about just defining this error code to some arbitrary 
> value like
> > 
> >   #ifdef __CYGWIN__
> >   #define ESTRPIPE 9999
> >   #endif
> 
> I like it.  If there are any other errno constants supported by Linux 
> but not Cygwin, you could also define them with the same value.  It 
> would effectively be the "this never happens" value.

That a bad suggestion.

Consider code like this:

switch (errno) {
case -ESTRPIPE:
	capers();
	break;
case -EFOOBAR:
	cucumber();
	break;
}

If both ESTRPIPE and EFOOBAR are defined to 9999 that doesn't work too
well, and you end up having cygwin specific patches in any case.

Cheers,
Peter