----- Original Message -----
From: Niklas Lvvgren <niklo@THINFILM.SE>
To: <PICLIST@MITVMA.MIT.EDU>
Sent: Tuesday, February 26, 2002 2:48 PM
Subject: SV: [pic]:struct+pointer


> is that true!?

yes.

> doesn't it point constantly at something that itself doesn't have to be
> constant?

no, "ship * const p;" does.

Try repositioning the const and then doing

 p = &ship1;

the compiler should complain.

> /niklas

Regards
Sergio

-----Ursprungligt meddelande-----
Fren: Sergio Masci [mailto:smpl@NTLWORLD.COM]
Skickat: den 26 februari 2002 14:59
Till: PICLIST@MITVMA.MIT.EDU
Dmne: Re: [pic]:struct+pointer
>
>
> > > cost ship * p;
>
> is this cost actually const?
>
> You can read from but not write to a const location.
> const meens constant, unchanging. Declaring a const
> pointer meens that it points to something which must
> not be changed.
>
> > > p=&ship1;
> > > (*p).temperature=123;
> > > the error message is same.
> >
> > p->temperature
> >
> > >
> > > Why???
>
> Regards
> Sergio

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