@safe containers with std.experimental.allocator

[bitwise via Digitalmars-d]

On Sunday, 22 January 2017 at 00:13:10 UTC, Chris Wright wrote:
> On Sat, 21 Jan 2017 22:44:49 +0000, bitwise wrote:
>> So I use a custom aligned allocator:
>> 
>> template <class T, int ALIGN>
>> class AlignedAllocator {
>>      T* allocate(size_type n) {
>>          return (T*)_aligned_malloc(ALIGN, n * sizeof(T));
>>      }
>> };
>> 
>> SIMD operations(aligned load and store) can now safely be used 
>> on the contents of the std::vector<Vec4>.
>
>
> alignedAllocate() is for when the code consuming the allocator 
> knows more about alignment needs than whoever is supplying the 
> allocator, which is more likely to crop up with coarse-grained 
> allocator control.

I understand this, but I've given a solid example which supports 
the former, and haven't seen a counter example which supports the 
latter.