-dip25 switch: time to make it always on?

[ketmar via Digitalmars-d]

On Thursday, 30 June 2016 at 01:54:27 UTC, Walter Bright wrote:
> On 6/29/2016 5:08 PM, ketmar wrote:
>> On Wednesday, 29 June 2016 at 20:52:52 UTC, Walter Bright 
>> wrote:
>>> On 6/29/2016 8:26 AM, Adam D. Ruppe wrote:
>>>> tbh, I've never been able to figure out what it is even 
>>>> supposed to do and thus
>>>> never actually used it, despite being interested in the 
>>>> subject.
>>>
>>> One way to find out is to turn it on and let it do the work 
>>> for you.
>>
>> but *what* work?
>
> It'll give you error messages for unsafe attempts to return 
> references. No error messages, and you're good to go.

thank you. this is the first time i can really make at least some 
sense of it. so, basically, in @safe code i should explicitly 
mark returning `ref`s, or compiler will complain?