Path: ...!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!eternal-september.org!.POSTED!not-for-mail
From: "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com>
Newsgroups: comp.lang.c
Subject: Re: "A diagram of C23 basic types"
Date: Fri, 4 Apr 2025 03:31:12 -0700
Organization: A noiseless patient Spider
Lines: 68
Message-ID: <vsocdg$367mr$2@dont-email.me>
References: <87y0wjaysg.fsf@gmail.com> <vsj1m8$1f8h2$1@dont-email.me>
 <vsj2l9$1j0as$1@dont-email.me> <vsjgk0$207gb$1@paganini.bofh.team>
 <vsjkc8$252sk$1@dont-email.me> <vsk5h5$2kpbg$3@dont-email.me>
 <vsn3vu$1rigp$1@dont-email.me> <vso9ju$352et$1@dont-email.me>
 <vsoc2k$367mr$1@dont-email.me> <vsoc85$37e62$1@dont-email.me>
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8; format=flowed
Content-Transfer-Encoding: 8bit
Injection-Date: Fri, 04 Apr 2025 12:31:13 +0200 (CEST)
Injection-Info: dont-email.me; posting-host="e2c747021cf4b98cdbf0e00a9e01b7cd";
	logging-data="3350235"; mail-complaints-to="abuse@eternal-september.org";	posting-account="U2FsdGVkX1/xeS1JvMTAeMJ6h13KGKnbJbKoV6xwhVw="
User-Agent: Mozilla Thunderbird
Cancel-Lock: sha1:sy3WjdwDhrnooNwYd3MjRQLbkbI=
In-Reply-To: <vsoc85$37e62$1@dont-email.me>
Content-Language: en-US
Bytes: 3754

On 4/4/2025 3:28 AM, Muttley@DastardlyHQ.org wrote:
> On Fri, 4 Apr 2025 03:25:23 -0700
> "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> wibbled:
>> On 4/4/2025 2:43 AM, Muttley@DastardlyHQ.org wrote:
>>> On Thu, 3 Apr 2025 16:01:18 -0700
>>> "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> wibbled:
>>>> On 4/2/2025 1:09 PM, Chris M. Thomasson wrote:
>>>>> On 4/2/2025 8:16 AM, Muttley@DastardlyHQ.org wrote:
>>>>>> On Wed, 2 Apr 2025 14:12:18 -0000 (UTC)
>>>>>> antispam@fricas.org (Waldek Hebisch) wibbled:
>>>>>>> Muttley@dastardlyhq.org wrote:
>>>>>>>> On Wed, 2 Apr 2025 10:57:29 +0100
>>>>>>>> bart <bc@freeuk.com> wibbled:
>>>>>>>>> On 02/04/2025 06:59, Alexis wrote:
>>>>>>>>>>
>>>>>>>>>> Thought people here might be interested in this image on Jens
>>>>>>>>>> Gustedt's
>>>>>>>>>> blog, which translates section 6.2.5, "Types", of the C23 standard
>>>>>>>>>> into a graph of inclusions:
>>>>>>>>>>
>>>>>>>>>>       https://gustedt.wordpress.com/2025/03/29/a-diagram-of-c23-
>>>>>>>>>> basic-types/
>>>>>>>>>>
>>>>>>>>>
>>>>>>>>> So much for C being a 'simple' language.
>>>>>>>>
>>>>>>>> C should be left alone. It does what it needs to do for a systems
>>>>>>>> language.
>>>>>>>> Almost no use uses it for applications any more and sophisticated
>>>>>>>> processing
>>>>>>>> using complex types for example are far better done in C++.
>>>>>>>
>>>>>>> C99 has VMT (variable modified types).  Thanks to VMT and complex types
>>>>>>> C99 can naturaly do numeric computing that previously was done using
>>>>>>> Fortran 77.  Offical C++ has no VMT.  C++ mechanizms look nicer,
>>>>>>
>>>>>> Officially no, but I've never come across a C++ compiler that didn't
>>>>>> support
>>>>>> them given they're all C compilers too.
>>>>>
>>>>> All C++ compilers are also C compilers?
>>>>
>>>> To answer my own sarcastic question: No way. :^)
>>>
>>> So name one that isn't. Fairly simple way to prove your point.
>>>
>>
>> Try to compile this in a C++ compiler:
>> _____________
>> #include <stdlib.h>
>> #include <stdio.h>
>>
>> int main() {
>>    void *p = malloc(sizeof(int));
>>    int *ip = p;
>>    free(p);
>>    printf("done\n");
>>    return 0;
>> }
>> _____________
>>


IIRC, C++ should not allow for that conversion from void* to int* 
without a cast. Let me try it on an online compiler... Does not compile:

https://i.ibb.co/3y5NNWRF/image.png