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Date: Tue, 22 Nov 2011 01:49:58 -0500
From: pete <pfiland@mindspring.com>
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Xref: x330-a1.tempe.blueboxinc.net comp.lang.c:13766

Ark wrote:
> 
> On 11/21/2011 5:45 PM, pete wrote:

> > A null pointer constant, may be converted to null pointer.
> >
> > I refer to any expression of any type,
> > as an instance of that type.
> >
> > (0.0) is a double.
> >
> I wonder if an expression
> (i.e. a critter with a type and a value) is in
> some sense "an instance".
> Is there any point in distinguishing an
> instance and an object? If so, what is it?

The assignment expression statement 
    a = 0;
implies that there is an object named (a)
and that after the assignment 
that (a) will have a value of (0).

The assignment expression (a = 0) 
does *not* imply that prior to the assignment
that there is a region of storage with a value of (0)
waiting to be loaded and moved into (a).

-- 
pete