Re: question about nullptr

On 2024-07-12, Richard Harnden <richard.nospam@gmail.invalid> wrote:

On 06/07/2024 13:54, 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).
 

>
I don't understand why you wouldn't use NULL.
>
If it's a pointer: NULL
If it's an integer: 0
If it's a double: 0.0
If it's a char: '\0'
>
Don't you use '\n'? Surely nobody would say 0x0a?

But, see, nobody in their right mind would say '\012` for that. '\0'
an octal escape sequence like '\012', not a role-based character
abstraction like '\n'.  There is no null character abstraction because
the null character is the concrete zero code.

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