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From: anigbogu@loria.crin.fr (Julian ANIGBOGU)
Newsgroups: comp.lang.c
Subject: Re: struct assignment question
Message-ID: <1833@loria.crin.fr>
Date: 15 Mar 90 09:43:02 GMT
References: <31530005@hpcvia.CV.HP.COM>
Organization: CRIN & INRIA Lorraine, Nancy, France
Lines: 39

In article <31530005@hpcvia.CV.HP.COM> brianh@hpcvia.CV.HP.COM (brian_helterline) writes:
>I have a simple question: Can you assign a struct like any other data type?
>An example:
>
>struct {
>	int a;
>	int b;
>	long c;
>       } var1, var2;
>
>  var1.a = 3; var1.b = 4; var1.c = 15L;
>
>  var2 = var1;	/* <--- is this legal?  */
>I was told it was not.  Is this always the case?  What does ANSI say?
>
>Thanks the info.
 
Your assignment of var1 to var2 is perfectly legal !!

I guess somebody has been reading old K&R lately. This is the second
time in as many days that stucture assignments are creating problems.
Any compiler that doesn't support this certainly needs a resting place
in a museum! When in doubt about such problems and a C book is not
handy, go ahead as you did above, add a print statement since you know
what results you expect and see what your compiler does. I do that
myself from time to time because there are certain problems that are
not covered in textbooks. Evidently we can't expect authors to know
about every possible usage of a particular C facility: it's normally
applications that determine what facilities a programmer uses.

Julian



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