From: "John M. Aldrich" <fighteer AT cs DOT com>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: Question on pointers and arrays
Date: Mon, 17 Feb 1997 19:35:18 -0800
Organization: Two pounds of chaos and a pinch of salt
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Ruiter de M wrote:
> 
> John M. Aldrich (fighteer AT cs DOT com) wrote:
> : Ruiter de M wrote:
> : >
> : > : >char string[5]="abcde" and
> : > : >char *string="abcde" are equivalent.
> 
> That's not what _I_ (mdruiter) wrote :)

Sorry.  I thought the double quote would make it obvious, but the
previous poster clipped out the attribution line (or I did; I forget
now).  :)

> Yes, you say _static_ data space. Which means it is not at all writable.
> For instance:
> ----- [example snipped]
> Not unpredictable at all. string1 is writable, string2 is not. Or am I getting
> something wrong?

No, but apparently this sort of thing is system-specific.  When you do
that with DJGPP in DOS, it works fine (although it still is very
unsafe).

> Maybe you mean there is no difference in _pointer_, which I think is not
> true either.
[more snippage]
> test.c: In function `main':
> test.c:11: incompatible types in assignment
> -----
> No error for string2, error for string1.
> So. Different pointers to different memory. Or am I getting it wrong again?

No, here you are saying exactly what I said, later in my response.  But
however you say it, it's still a bad idea to write into static data
space, and illegal to attempt to modify an array identifier.  :)

-- 
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| John M. Aldrich, aka Fighteer I  |        fighteer AT cs DOT com         |
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