Path: utzoo!attcan!uunet!cs.utexas.edu!convex!egsner!lerami!woodwrk!dick
From: dick@woodwrk.LoneStar.ORG (Richard H. Wood)
Newsgroups: comp.sys.amiga.programmer
Subject: Re: "chip" in SAS C
Message-ID: <18834113.ARN1551@woodwrk.LoneStar.ORG>
Date: 13 Jan 91 03:30:59 GMT
References: <4372@mindlink.UUCP>
Reply-To: dick@woodwrk.LoneStar.ORG
Followup-To: comp.sys.amiga.programmer
Organization: The \\//oodwork Bench, Garland, Texas - USA
Lines: 25

In article <4372@mindlink.UUCP>, Ron Tarrant writes:

> > johnl@SDFSUN1.hac.com writes:
> > 
> > However, I do take exception regarding the error message.  The SAS/C error
> > message, "Error 25: modifiable lvalue required", does indeed make sense, but
> 
> It took some real digging to find out what the h___ an lvalue was. Not having
> the advantage of a BCSc, and finding no references to this word in _any_ book,
>
> -Ron Tarrant
>

The term 'lvalue' is a common term in the C vernacular...I first saw it in K&R,
the "white book" (although I guess I've seen a lot of white books on C by others
at the local Book Stop recently).  It basically refers to a variable label:
i.e., one that refers to a bucket you can store stuff into - like an "int."  The
term comes from the variable's placement on an assignment statement.  An lvalue
is one that goes on the lefthand side of the equal sign; hence the term lvalue
(for LEFT value).
--
Richard H. Wood                      //          dick@woodwrk.LoneStar.ORG
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