Xref: utzoo comp.lang.c:13573 comp.std.c:445
Path: utzoo!utgpu!water!watmath!clyde!att!osu-cis!tut.cis.ohio-state.edu!rutgers!mailrus!ames!nrl-cmf!cmcl2!adm!smoke!gwyn
From: gwyn@smoke.BRL.MIL (Doug Gwyn )
Newsgroups: comp.lang.c,comp.std.c
Subject: Re: union *func()
Keywords: union, pointers, functions
Message-ID: <8765@smoke.BRL.MIL>
Date: 26 Oct 88 22:15:40 GMT
References: <2205@arcturus>
Reply-To: gwyn@brl.arpa (Doug Gwyn (VLD/VMB) <gwyn>)
Organization: Ballistic Research Lab (BRL), APG, MD.
Lines: 11

In article <2205@arcturus> evil@arcturus.UUCP (Wade Guthrie) writes:
>Is the following code portable, strictly conforming, etc.
>	a = function()->member;

There are probably implementations that don't support this.
However, in ANSI C functions can return (rvalue) structures.
Since the function value is not an lvalue, neither will the
result of the member-of operator be an lvalue.  Thus,
	sfunc().member = a;
is invalid.  (There should be no such problem with structure
pointers and ->.)