Template for going from Array --> list of args

[Bill Baxter]

Don Clugston wrote:
> Frits van Bommel wrote:
>> Bill Baxter wrote:
>>> Kirk McDonald wrote:
>>>>     ParameterTypeTuple!(typeof(&fn)) t;
>>>
>>> Whoa, didn't realize you could make a variable out of a type tuple.  
>>> Or if I did know it once, I completely forgot it.
>>>
>>>>     foreach (i, e; t) {
>>>>         t[i] = array[i];
>>>>     }
>>>
>>> I guess this squashes any hope of the thing getting inlined... :-(
>>
>> Are you sure? 'foreach' with a tuple as aggregate is automatically 
>> unrolled. Sort of a "static foreach", really. So it's not actually a 
>> loop. In fact, the index is a compile-time constant.
>> I'm not sure how the compiler handles this, but I suspect the 
>> optimizer may not even know it used to be any kind of loop at all...
> 
> I'm almost certain you're right. If inside the loop, you insert asm 
> statements, they are placed after each other, with no indication that 
> the loop ever existed. (Makes it possible to write a compile-time 
> compiler that writes directly to asm code...).

Ok.  All's the better then.  Thanks to the three of ya.

--bb