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From: hamilton@uiucuxc.UUCP
Newsgroups: net.lang.c
Subject: Re: Array by value - (nf)
Message-ID: <2616@uiucdcs.UUCP>
Date: Sun, 21-Aug-83 23:39:02 EDT
Article-I.D.: uiucdcs.2616
Posted: Sun Aug 21 23:39:02 1983
Date-Received: Tue, 23-Aug-83 23:27:53 EDT
Lines: 18

#R:decvax:-17100:uiucuxc:21000005:000:432
uiucuxc!hamilton    Aug 21 17:32:00 1983

regarding the value of the array assignment expression, this
made me wonder what the compiler does for structure assignments.
i tried this (4.1a BSD cc):

    main()
    {
	struct { int x, y, z ; } a, b;

	if ((a = b) != 0)
	    ;
    }

and got the diagnostic "operands of != have incompatible types".
(btw, this compiler generated a movc3 instruction for the actual copy.)
	wayne ({decvax,ucbvax}!pur-ee!uiucdcs!uiucuxc!)hamilton