passing POD by value with const qualifiers. Silly or not?

[André Wöbbeking]

On Friday 22 February 2008, Stefan Teleman wrote:
> On Fri, Feb 22, 2008 at 3:33 PM, André Wöbbeking <Woebbeking at kde.org> 
wrote:
> > On Friday 22 February 2008, Stefan Teleman wrote:
> > > On Fri, Feb 22, 2008 at 3:16 PM, Ariya Hidayat <ariya at kde.org> 
wrote:
> >  > > >  And if you change it (intentionally or not), what happens ?
> >  > > > Anything ?
> >  > >
> >  > >  You can't. It will give a compile error.
> >  >
> >  > Yes, i know. And not only it's orthogonal to this thread, but it
> >  > begs a more fundamental question: why would anyone ever try to
> >  > modify a function argument passed by value.
> >
> >  1) by mistake
> >  2) too lazy to use another variable
>
> Are these "technical rationales" ? They sound like excuses to me.

That sounds a bit like "why using const at all" to me.