Does 'D' language supports 'C' like VLA?

[BS & LD via Digitalmars-d]

On Monday, 13 April 2015 at 17:32:31 UTC, Dmitri Makarov wrote:
> On Monday, 13 April 2015 at 17:24:05 UTC, Dylan Knutson wrote:
>> On Monday, 13 April 2015 at 17:20:04 UTC, Dmitri Makarov wrote:
>>> This should work the way you want it to:
>>>
>>> void main()
>>> {
>>>  immutable size_t szArr = 3;
>>>
>>>  int[szArr] arr;
>>> }
>>>
>>> Regards,
>>>
>>> Dmitri
>>
>> No, this isn't what VLA is. Ola Fosheim Grøstad has the right 
>> of it; he'll need to use alloca to dynamically extend the 
>> stack. What OP is referring to is the ability to create a 
>> dynamically sized array on the stack, rather than the heap. 
>> Here's a good description of what VLA is and how it works: 
>> https://en.wikipedia.org/wiki/Variable-length_array
>
> Ah, ok, then why did he complain that the compiler can't 
> determine that the value of szArr is known at compile-time. A 
> kind of conundrum, isn't it -- he want's to create arrays on 
> stack with their sizes known at run-time, but wants the 
> compiler to figure the size of such an array at compile-time...

Who wants the compiler creating un-efficient code? I supposed 
that I would need to write more complex code in order to fool it 
that 'szArr' isn't known at compile-time or even make it really 
so.