Re: multi-vkd support patch for review

["Jonas Trollvik" <jontro@xxxxxxxxx>]

++i returns the new value of i and i++ returns i before being
incremented. See it as a function in that matter.

//Jonas

On 1/28/07, C.Turner <c.turner@199technologies.org> wrote:
> On Sun, 28 Jan 2007 18:08:58 +0100
> "Simon 'corecode' Schubert" <corecode@fs.ei.tum.de> wrote:
>
> > Thomas E. Spanjaard wrote:
> > > Sepherosa Ziehau wrote:
> > >> On 1/28/07, Thomas E. Spanjaard <tgen@netphreax.net> wrote:
> > >>> C.Turner wrote:
> > >>> > +                     if ( vkdFileNum < VKD_MAX )
> > >>> > +                             vkdFile[vkdFileNum++] = optarg;
> > >>> Why not if (vkdFileNum < VKD_MAX) { vkdFile[vkdFileNum] = optarg;
> > >>> vkdFileNum++; }; ? Because now it appears '16' is a valid number,
> > >>> where
> > >> Why '16'(VKD_MAX) will be a valid number in his patch?
> > > if (15 < 16) { vkdFile[(15++ = 16)] = optarg; }
> >
> > heh, no :)
> >
> > % cat<<EOF>d.c
> > main(){int i=0;printf("%d\n", i++);}
> > EOF
> > % cc d.c
> > % ./a.out
> > 0
> > %
> >
> > cheers
> >   simon
> >
>
> yeah.. should have written a test.. *doh*. the C book I referred to (in
> *only* 24 hours!!) says '++' is higher in the ops than '=' .. blah. Too
> bad the 'standard' costs $$
>
> I think the worry was that = happens after ++ and the [] deref..
>
> anyhoo, your right should be safe (and time to get another book)
>
> $ cat assign-incr.c
> main () {
> int x[2]= {-1,-1};
> int i = 0;
> x[i++] = i;
> printf("%d, %d\n", x[0], x[1]);
> return i;
> }
> $ cc assign-incr.c
> $ ./a.out
> 0, -1
> $ echo $?
> 1
> $