Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!bloom-beacon!bu-cs!purdue!haven!adm!smoke!gwyn
From: gwyn@smoke.BRL.MIL (Doug Gwyn )
Newsgroups: comp.std.c
Subject: Re: Constant expressions in initializers
Message-ID: <9955@smoke.BRL.MIL>
Date: 30 Mar 89 17:06:48 GMT
References: <5716@cognos.UUCP>
Reply-To: gwyn@brl.arpa (Doug Gwyn (VLD/VMB) <gwyn>)
Organization: Ballistic Research Lab (BRL), APG, MD.
Lines: 9

In article <5716@cognos.UUCP> brunog@cognos.UUCP (Bruno Godbout) writes:
>	I would like to know if this code is rejected by the ANSI
>definition or if it is only a restriction of the compiler I am using.

It looked okay to me.  This might make a good test case for compiler
validation.  So long as you invoke offsetof() correctly, which it
appears that you did, offsetof() is supposed to expand to an integral
constant expression, which is a subset of "arithmetic constant
expression", which is one of the allowed initializer classes.