NetNews Usenet Archive 1992 #30/NN_1992_30.iso/spool/comp/lang/c/18203

Internet Message Format | 1992-12-11 | 1.6 KB

Path: sparky!uunet!crdgw1!rdsunx.crd.ge.com!bart!volpe
From: [e-mail] (Christopher R Volpe)
Newsgroups: comp.lang.c
Subject: Re: Question to test general C knowledge
Message-ID: <[e-mail]>
Date: 11 Dec 92 18:09:39 GMT
References: <[e-mail]> <[e-mail]> <[e-mail]>
Sender: volpe@bart (Christopher R Volpe)
Reply-To: [e-mail]
Organization: GE Corporate Research & Development
Lines: 35
Nntp-Posting-Host: bart.crd.ge.com

In article <[e-mail]>, [e-mail] (der Mouse) writes:
|> In article <[e-mail]>, [e-mail] (John F. Woods) writes:
|> > [e-mail] (Darren Meister) writes:
|> >> [I]f you could ask someone one question to test if they generally
|> >> understand C what would it be[?]
|>
|> > "After
|> >     int i = 2;
|> >     i = ++i;
|> >  what does i equal?"
|>
|> > If they answer, do not hire them.
|>
|> Hm?
|>
|> "Anything or nothing.  3 seems most probable, with 4 next."
                                                 ^^^^^^^^^^^^

Why? The effect of the "++" is to assign 3 to i. And since the value of
the "++i" expression is 3, the effect of the "=" is to assign 3 to i.
Under what conditions would any other value be expected? (Other than,
of course, a vindictive compiler that detected violations of the letter
of the law and went out of its way to give you garbage.)


|>
|>                     der Mouse
|>
|>                 [e-mail]

--
==================
Chris Volpe
G.E. Corporate R&D
[e-mail]