Re: Pointer subtraction with a null pointer

Hi,

On 2022-03-26 14:13:56 -0400, Tom Lane wrote:
> The attached also silences the warning, and getting rid of the double-eval
> hazard seems like a net win.

Looks good wrt relptr_store. Maybe we should fix the double-eval hazard in
relptr_access too, think that'd be only one left over...


> > Might also be worth adding an assertion that base < val.
> 
> Did that too.  On the whole I like this better.

Better than the relptr_store_null() approach I assume? Agreed, if so.

Greetings,

Andres Freund