How to check if path is writable

[Joseph via Digitalmars-d-learn]

On Friday, 15 September 2017 at 02:02:54 UTC, Neia Neutuladh 
wrote:
> On Friday, 15 September 2017 at 01:42:02 UTC, Joseph wrote:
>> Is there a cross-platform way in D to check if a path is 
>> writable?
>
> Try to write to it and see if you get an error.

Um, so I have to do this for every platform? I thought D was a 
systems language?