[swift-evolution] [Proposal] Random Unification

[Taylor Swift]

I think ClosedRange. Also there should be support for floating types.

> On Sep 8, 2017, at 12:34 PM, Alejandro Alonso via swift-evolution <swift-evolution at swift.org> wrote:
> 
> Range support is something that came up, and I think it’s a great idea as well. My question now is do we support both `CountableRange` and `CountableClosedRange`?
> 
>> On Sep 8, 2017, 12:08 PM -0500, Shawn Erickson <shawnce at gmail.com>, wrote:
>> It would be nice to leverage range support instead of a start and end value IMHO.
>>> On Fri, Sep 8, 2017 at 9:52 AM Alejandro Alonso via swift-evolution <swift-evolution at swift.org> wrote:
>>> Hello swift evolution, I would like to propose a unified approach to `random()` in Swift. I have a simple implementation here https://gist.github.com/Azoy/5d294148c8b97d20b96ee64f434bb4f5. This implementation is a simple wrapper over existing random functions so existing code bases will not be affected. Also, this approach introduces a new random feature for Linux users that give them access to upper bounds, as well as a lower bound for both Glibc and Darwin users. This change would be implemented within Foundation.
>>> 
>>> I believe this simple change could have a very positive impact on new developers learning Swift and experienced developers being able to write single random declarations.
>>> 
>>> I’d like to hear about your ideas on this proposal, or any implementation changes if need be.
>>> 
>>> - Alejando
>>> 
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