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From: miker3@ix.netcom.com (Mike Rubenstein)
Subject: Re: HELP ! need to insert value in array !!
Date: 1997/06/29
Message-ID: <33b64c2f.43589878@nntp.ix.netcom.com>#1/1
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References: <33A9C27C.22F7@post4.tele.dk> <5oci49$97g@crl.crl.com>
 <866920621snz@genesis.demon.co.uk> <5p0v7l$9uc@nntp.seflin.org>
 <dewar.867554609@merv>
Organization: Netcom
X-NETCOM-Date: Sun Jun 29  4:56:12 AM PDT 1997
Newsgroups: 
 comp.lang.c,comp.lang.c++,comp.os.msdos.programmer,comp.lang.asm.x86,comp.lang.ada
Date: 1997-06-29T04:56:12-07:00
List-Id: <comp.lang.ada>


dewar@merv.cs.nyu.edu (Robert Dewar) wrote:

> i am not quite sure who said
> 
> <<: An impelemenattion is not permitted to pad between array elements.??
> 
> But it is definitely wrong, of course an implementatoin is permitted
> padding between array elements.
> 

Perhaps it was someone who actually knows C.  Whoever said it was
correct.  Objects may be padded in that there may be bytes that are
not used, but there must be no additional padding between array
elements.  For any type T,

	T a;
	T b[5];

we must have sizeof b == 5 * sizeof a. There can be no unused space
between b[0] and b[1].

Michael M Rubenstein