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Article #3722

Re: 'sizeof e' vs. 'sizeof (T)' (was: Re: Parenthesis with return ?)

#3722
From: Tanmoy Bhattacharya
Date: Mon, 14 Aug 1995 16:10
30 lines
1719 bytes
In article <40nqhd$1rs4@usenetp1.news.prodigy.com>, NGMV85A@prodigy.com (Paul
Long) writes: 
|> clive@stdc.demon.co.uk (Clive D.W. Feather) wrote:
<snip>
|> >>   sizeof c + 1
|> >
|> >The last of these can never be 1 (assuming it occurs in a strictly
|> >conforming program).
|> 
|> Sure it would.  The usual arithmetic promotions would cause "c" to be 

And explains why `sizeof (c + 1)' can be 1...

I just noticed that most beginners' text probably would have trouble
explaining the following (implementation-specific) results on basis of
`precedence' alone (At least, I had never come across such concepts before I
started using C: and _I_ still wouldn't call it precedence.)

sizeof + (char) 1  == 4
sizeof (char) + 1  == 2

Cheers
Tanmoy	
-- 
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Path: arc1-ca.pugleaf.net!qcd.lanl.gov!tanmoy
From: tanmoy@qcd.lanl.gov (Tanmoy Bhattacharya)
Newsgroups: comp.std.c
Subject: Re: 'sizeof e' vs. 'sizeof (T)' (was: Re: Parenthesis with return ?)
Date: 14 Aug 1995 16:10:30 GMT
Organization: Los Alamos National Laboratory
Distribution: world
Message-ID: <40nshm$2i1@newshost.lanl.gov>
References: <3415076830.8283127@ortel.org> <dd9uho.ajm@stdc.demon.co.uk> <40nqhd$1rs4@usenetp1.news.prodigy.com>
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