alloca is slow and dangerous

[Ola Fosheim Grøstad]

On Friday, 1 January 2021 at 14:48:11 UTC, welkam wrote:
> Over the years I saw several people asking why D doesn't have 
> alloca. I just want to share a video where it states that 
> alloca is slower than static array

13% slower is nothing compared to the alternative which is malloc 
or running out of stack (which will happen real fast if you keep 
piling up worst case fixed size).