Of the use of unpredictableSeed

[Nick Sabalausky (Abscissa) via Digitalmars-d]

On 03/07/2017 05:18 AM, Seb wrote:
>
> As apparently no one here hasn't mentioned this, Linux >= 3.17 has a
> dedicated syscall API. Please see:
>
> http://man7.org/linux/man-pages/man2/getrandom.2.html
>
> And this excellent introductory article:
>
> https://lwn.net/Articles/605828
>

Ooh, that's great to know! (Kinda sad that it seems necessary, given the 
"unix filesystem and unix design" ideals, but oh well, realities are 
realities.)

Is there a "proper" way to check for this function's existence on a 
local machine, other than test-compiling, or is parsing 'uname -a' as 
"right way" as it gets?

And anyone know about OSX? Would OSX use the getentropy the article you 
linked to mentions for OpenBSD? Or something else? Or just fallback to 
/dev/(u)random?

This really deserves a Phobos PR, IMO, FWIW. Maybe I'll try my hand at 
it if any OSX folk have tips for that OS.