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From: Richard Damon <richard@damon-family.org>
Newsgroups: comp.lang.c
Subject: Re: question about nullptr
Date: Sat, 6 Jul 2024 17:04:59 -0400
Organization: i2pn2 (i2pn.org)
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On 7/6/24 4:23 PM, Chris M. Thomasson wrote:
> On 7/6/2024 7:04 AM, Scott Lurndal wrote:
>> Janis Papanagnou <janis_papanagnou+ng@hotmail.com> writes:
>>> On 06.07.2024 14:54, Kaz Kylheku wrote:
>>>> On 2024-07-06, Thiago Adams <thiago.adams@gmail.com> wrote:
>>>>> If you were creating C code today and could use a C23 compiler, would
>>>>> you use nullptr instead of NULL?
>>>>
>>>> In greenfield projects under my dictatorship, I use 0, as in:
>>>>
>>>>     char *p = 0;
>>>>
>>>> I was still 20 something when I (easily) wrapped my head around the 0
>>>> null pointer constant, and have not had any problems with it.
>>>> Once I learned the standard-defined truth about null pointer constants,
>>>> and their relationship to the NULL macro, I dropped NULL like a hot
>>>> potato, and didn't look back (except when working in code bases that 
>>>> use
>>>> NULL).
>>>
>>> We also used 0 as "universal" pointer value regularly without problems.
>>
>> Whereas I spent 6 years programming on an architecture[*] where a
>> null pointer was represented in hardware by the value 0xc0eeeeee.  I 
>> always
>> use the NULL macro in both C and C++ code.
> 
> Where:
> 
> void* x = 0;
> 
> Should be x = 0xc0eeeeee, right?
> 

Maybe when the representation of x is examined by reinterpreting it as 
an array of character types (like unsigned char).