Re: [boost] interest in structure of arrays container?

Subject: Re: [boost] interest in structure of arrays container?
From: Michael Marcin (mike.marcin_at_[hidden])
Date: 2016-10-20 00:59:52

On 10/19/2016 7:32 AM, Larry Evans wrote:
>> Michael, the attached is an outline of how to do it.
>> As noted in the comments, a lot of member functions still need
>> implementation; however, the offset calculations I think are
>> correct.
>>
> Code has been updated to implement most of the "essentials" of
> soa_block.  You can now call begin<Index> to get the begin
> iterator for the Index'th vector.
>
> The code now is on github at:
>
> https://github.com/cppljevans/soa/blob/master/soa_block.cpp
>

Still digesting this but one small tidbit I stood out for me

//The c++ standard, IIRC, says all alignments are power of 2.

I didn't actually know this was a requirement.

"Every alignment value shall be a non-negative integral power of two."
§ 3.11/4 http://open-std.org/JTC1/SC22/WG21/docs/papers/2016/n4606.pdf

Thanks!