Re: question about nullptr

On 09/07/2024 11:52, Tim Rentsch wrote:
>

Thiago Adams <thiago.adams@gmail.com> writes:
>

On 09/07/2024 08:32, Tim Rentsch wrote:
>

Any use of '\0' almost always strikes me as an affectation.  It's
like people want to somehow pretend that it's not the same as
just 0.

>
I like to pretend
>
'\0'   is not int
2 > 1  is not int
etc
>
I know it is int, but I think this needs a redesign in C.

>
I strongly encourage you not to do that.  Based on past
experience most of your ideas for improvements make
things worse rather than better.

>
It is only for static analysis.
>
For instance:
>
>
enum  E {Z = 0};
>
int main()
{
  int * p;
  p = '\0';
  p = false;
  p = Z;
}
>
clang has 3 warnings for this code.
>
https://godbolt.org/z/56fn5PT4h
>
Especially for p = Z and p = '\0' we have value 0 of type int, but the
compiler is not blind for the other characteristics.