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From: battle@alphard.cs.utk.edu (David Battle)
Newsgroups: comp.lang.c
Subject: Re: Zero Length Arrays Allowed in C Standard?
Message-ID: <1498@utkcs2.cs.utk.edu>
Date: 13 Dec 89 20:57:35 GMT
References: <2298@jato.Jpl.Nasa.Gov> <11715@smoke.BRL.MIL> <480@codonics.COM> <1989Dec2.210042.12668@twwells.com> <8129@cg-atla.UUCP <70188@psuecl.bitnet>
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Reply-To: battle@alphard.cs.utk.edu (David Battle)
Organization: CS Dept -- University of TN, Knoxville
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In article <70188@psuecl.bitnet> c9h@psuecl.bitnet (Charles Hannum) writes:
>It seems that the main reason (and *only* even half-way decent reason) for
>using a 0-length array is to allocate a variable amount of memory for a
>structure depending on the length of the array.  This seems reasonable.

Is the order of elements of a structure guaranteed to be the same in memory
as in the program?  That is, given:

struct foo {
    int a;
    int b;
};

struct foo bar;

Is &bar.a guaranteed to be < &bar.b?

					-David L. Battle
					 battle@battle.esd.ornl.gov
					 battle@utkux1.utk.edu