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Subject: Re: Soliciting Games related topics for this wednesday
From: Matt Bentley (mattreecebentley_at_[hidden])
Date: 2020-10-14 01:05:18


New version of the colony paper is now available here:
https://htmlpreview.github.io/?https://raw.githubusercontent.com/WG21-SG14/SG14/master/Docs/Proposals/D0447R11%20-%20Introduction%20of%20colony%20to%20the%20Standard%20Library.html

To the best of my knowledge all the feedback from the last review has
been actioned. And the implementation based on this draft is very close
to being fully baked - about 2% to go.
The ~10% performance issues mentioned last time in relation to reserve()
were a GCC bug that was introduced in GCC9, and have been reported here:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96750

This is not fixed in GCC yet. 'm not sure if it will be. However reduced
tests on the current beta show equal or better performance over the
previous non-reserve versions, about 2% performance increase across most
compilers. This is largely down to the optimisation work I have been doing.

In addition a new function, trim(), has been introduced - the reasoning
for this is listed in the Design Decisions->'Additional notes on
specific functions'->shrink_to_fit description.

I hope I will be able to attend tomorrow, if not I welcome your
feedback. There are a couple of minor questions I have:
* Should assign be allowed to reduce capacity? eg. If the newly assigned
fill or range is smaller than the previous capacity.
* Should operator = (&colony) be allowed to retain existing memory
blocks and hence have a potentially higher capacity than the source colony?

Thanks-
M

On 13/10/2020 11:57 am, Michael Wong via SG14 wrote:
> Hi all, for this Wednesday's monthly call, we will be returning to a
> Games focus, as Security wanted to move to December. I am wondering if
> there are any papers or topics for review or discussion. Thank you.
>
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> SG14 mailing list
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