Small Buffer Optimization for string and friends

[Manu]

On 8 April 2012 12:46, Vladimir Panteleev <vladimir at thecybershadow.net>wrote:

> On Sunday, 8 April 2012 at 05:56:36 UTC, Andrei Alexandrescu wrote:
>
>> Walter and I discussed today about using the small string optimization in
>> string and other arrays of immutable small objects.
>>
>> On 64 bit machines, string occupies 16 bytes. We could use the first byte
>> as discriminator, which means that all strings under 16 chars need no
>> memory allocation at all.
>>
>
> Don't use the first byte. Use the last byte.
>
> The last byte is the highest-order byte of the length. Limiting arrays to
> 18.37 exabytes, as opposed to 18.45 exabytes, is a much nicer limitation
> than making assumptions about the memory layout.
>

What is the plan for 32bit?
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