template specialization for arrays

[J Arrizza]

Steven,

I see,  but here's IsStaticArray from traits.d

template isStaticArray(T : U[N], U, size_t N)
{
    enum bool isStaticArray = true;
}

template isStaticArray(T)
{
    enum bool isStaticArray = false;
}

It looks like the first version is using the "[]" format. It is different
in that it has the [N] and then goes on to specify that N is a size_t.

John

On Mon, Oct 31, 2011 at 5:13 AM, Steven Schveighoffer
<schveiguy at yahoo.com>wrote:

> On Sat, 29 Oct 2011 12:11:42 -0400, J Arrizza <cppgent0 at gmail.com> wrote:
>
>  Thanks for the reply Jonathan, but it didn't work for me:
>>
>> void abc(T) (T[] parm1)
>>
>> if (isDynamicArray!T)
>> {
>>  writeln("array : ", parm1);
>> }
>>
>>
>> Nor did:
>>
>> void abc(T) (T[] parm1)
>>
>> if (isStaticArray!T)
>> {
>>  writeln("array : ", parm1);
>> }
>>
>>
>> Output is the same:
>>
>> simpleparm: 1
>> simpleparm: str
>> simpleparm: [1, 2]
>>
>
> I know you've since figured it out, but I thought I'd point out why this
> didn't work.
>
> The reason it doesn't match is because your parameters are arrays of type
> T, but you are only instantiating if T *itself* is an array.  So for
> example, int[][] would work, because T is matched as int[], giving int[][]
> as the parm1 type.
>
> -Steve
>



-- 
John
blog: http://arrizza.blogspot.com/
web: http://www.arrizza.com/
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