Path: csiph.com!v102.xanadu-bbs.net!xanadu-bbs.net!eternal-september.org!feeder.eternal-september.org!mx04.eternal-september.org!.POSTED!not-for-mail
From: Jens Gustedt <jens.gustedt@loria.fr>
Newsgroups: comp.lang.c,comp.lang.c++
Subject: Re: C as a Subset of C++ (or C++ as a superset of C)
Date: Tue, 28 Aug 2012 09:27:54 +0200
Organization: A noiseless patient Spider
Lines: 21
Message-ID: <503C72FA.2090109@loria.fr>
References: <k1ctl7$5uq$1@speranza.aioe.org> <k1el1b$enj$1@news.albasani.net> <k1hbfo$7ae$1@dont-email.me> <k1hee9$ohv$1@news.albasani.net>
Mime-Version: 1.0
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: 7bit
Injection-Info: mx04.eternal-september.org; posting-host="2590e4fa64e7931a8f955de6703c052f"; logging-data="18200"; mail-complaints-to="abuse@eternal-september.org";	posting-account="U2FsdGVkX1/Yr9seob1cB1uNoB5ncXkYL7dszJEhMIc="
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:14.0) Gecko/20120714 Thunderbird/14.0
In-Reply-To: <k1hee9$ohv$1@news.albasani.net>
Cancel-Lock: sha1:0132ZzwlXC767Deviu3JgJGPIqY=
Xref: csiph.com comp.lang.c:25198 comp.lang.c++:17970

Am 28.08.2012 05:34, schrieb BGB:
> On 8/27/2012 9:47 PM, Casey Carter wrote:
>> and (c) both languages use a new distinct type
>> that can implicitly convert to any pointer type.
> 
> we call this 'void *', where this is nearly the only thing that can
> really be done with this type anyways ("void" variables are otherwise
> pretty much useless, ...).

yes!

That said, I don't really see the point of "void*" as it is in C++
nowadays. Since you'd have to do an explicit conversion any time you
use it, in C++ it has nothing that couldn't be done with a "unsigned
char*". In the contrary, "unsigned char*" allows byte based pointer
arithmetic and to inspect the contents on a byte base.

The only reason, I think, for "void*" is interface compability to
C. Somehow it misses the whole point of it.

Jens