[m-users.] A question about in-place updating...

[Julien Fischer]

On Mon, 28 Aug 2023, Volker Wysk wrote:

> Am Montag, dem 28.08.2023 um 13:02 +0100 schrieb Sean Charles
> (emacstheviking):
>>
>> It's an interesting question for me to ponder at the moment! Given all
>> that Mercury does, I am guessing that there are no ways to 'pin' a block
>> of memory such that it can then be reused over and over, I have played
>> around with bitmap but that's not really built for generic structures etc.
>> I guess if it came to the crunch I could always re-code those things that
>> need maximal performance in C but that kind of negates the reason I
>> decided to write this game in Mercury.
>
> What you describe seems to be a case for unique modes. See section 6 in the
> Language Reference Manual.

In princple, yes. In practice, the limitations listed in section 6.3
mean they're not really useful for that purpose.

Julien.