Subj : Re: RP2350 and Pico 2 - things missing
To   : Richard Kettlewell
From : The Natural Philosopher
Date : Fri Aug 30 2024 12:11:45

On 29/08/2024 20:26, Richard Kettlewell wrote:
> The Natural Philosopher <tnp@invalid.invalid> writes:
>> 24 bit pointers were I think quite common, but isn't the 'null
>> pointer' *defined* to be (Char *)0 ?
>> Otherwise how could you test for it?
>
> The null pointer you get from (char *)0 (or similar constructions)
> doesn’t have to be all bits 0.
>
> https://c-faq.com/null/index.html
>
Ah, thanks.

Hadn't apprecaied the level of mapping going on during compilation.



--
In theory, there is no difference between theory and practice.
In practice, there is.
-- Yogi Berra

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