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Article #2331

Re: Why no arithmetic on void *

#2331
From: Doug Gwyn
Date: Fri, 25 Jan 1991 17:51
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In article <279D93D3.5EE7@tct.uucp> chip@tct.uucp (Chip Salzenberg) writes:
>"sizeof(char)==1" is hard-coded into innumerable calls to fread() and
>other library functions.

I had to figure out the ramifications when I wrote my "short char" proposal.
Actually there are enough problems with use of fread() etc. that I don't
think much more work would be needed to accommodate sizeof(char)>1 than
is already necessary to properly include <stdio.h>, use size_t, etc.  Also
note that in any implementation where it was decided to make sizeof(char)
remain 1, the existing usage would not be a problem.  For quite some time
I had been writing code that did not assume sizeof(char)==1, just in case.
Now that the standard requires sizeof(char)==1, I don't think there is any
real chance that it will ever change, so one can safely assume that
constraint.
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References: <561@taumet.com> <1991Jan22.211212.14692@Think.COM> <279D93D3.5EE7@tct.uucp>

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From: gwyn@smoke.brl.mil (Doug Gwyn)
Newsgroups: comp.std.c
Subject: Re: Why no arithmetic on void *
Message-ID: <14978@smoke.brl.mil>
Date: 25 Jan 91 17:51:22 GMT
References: <561@taumet.com> <1991Jan22.211212.14692@Think.COM> <279D93D3.5EE7@tct.uucp>
Organization: U.S. Army Ballistic Research Laboratory, APG, MD.
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