Is SIMD template

[Manu]

On 23 January 2012 21:55, Manu <turkeyman at gmail.com> wrote:

> On 23 January 2012 21:31, Walter Bright <newshound2 at digitalmars.com>wrote:
>
>> On 1/23/2012 10:58 AM, Manu wrote:
>>
>>> So I've been fiddling, but I can't work it out.
>>> Trying to make something like isStaticArray to match a vector...
>>>
>>> template isVector(T : __vector(U[N]), U, size_t N) { enum bool isVector
>>> = true; }
>>> template isVector(T) { enum bool isVector = false; }
>>>
>>> Complains:
>>> test.d:122: Error: Integer constant expression expected instead of N
>>> test.d:122: Error: size of type U is not known
>>> test.d:122: Error: base type of __vector must be a 16 byte static array,
>>> not U[N]
>>>
>>> A size_t template arg should be an integer constant expression, and
>>> consequently, the size of U should be known... Bug?
>>>
>>
>> Code would have to be added to the compiler to make that work. In the
>> meantime, you can simply enumerate the supported aliases for vector types.
>>
>
> Ah, of course!
> Deeer, I didn't think of that! :P
>

... I guess I'll need to do this one the same way:
template VectorType(T : __vector(T[N]), size_t N) { alias T VectorType; }
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